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230Pcs XH2.54 2P 3P 4P 5 Pin 2.54mm Pitch Terminal Kit / Housing / Pin Header JST Connectors
R72.90  Inc VAT
433Mhz Geekcreit® DC 12V 10A Relay 1Channel Wireless RF Remote Control Relay (1 channel relay remote)
Description:

It is a learning code wireless remote control switch (receiver), the output way /working way can be changed as you like. It is easy to match the transmitter. A Relay which can make the equipment turn or reverse, on/off. The volume is small and the performance is stable and reliable, with high receive sensitivity.

Features:

Easy to use.
Operating Voltage: DC12V
Maximum Load: 10A
Operating Frequency: 433MHZ
Receiver Sensitivity: -100dBm
Encoding Type: learning code
Board Size: Approx. 5.3x3.1cm/ 2.09x1.22"

Relay rating:

  • 10A 250VAC
  • 10A 125VAC
  • 10A 30VDC
  • 10A 28VDC

To check compatibility of a new remote with the receiver. Simply press the button on the remote, if the receiver flashes, but does not Triger the relay. The remote will be compatible, and you can start the programing process

To add a remote, press the button on receiver momentarily. The red light will come on. Then press the button on the remote that you want to program in. The red light will start flashing. After 4 flashes in will stop, and the button will be programmed in.

For the setting to take effect, the board needs to be disconnected from it’s power supply. The bellow settings will be done to the 3 headers and bridge pin on the receiver board, above the push button.

  • With the header removed, the On button will switch the relay on, and the off button will in turn switch the relay off.
  • With the header on Pin 1-2. Both Buttons will become momentary. And only hold the relay in place as long as they are pressed in.
  • With the header on Pin 2-3. Each button will be able to switch the relay on and off individually. You will however not be able to switch the button off with the “off” button, if you switched it on with the “on” button. And vise versa.


Package Includes:

1 x Learning Code Receiver Relay
1 x Remote Control





R169.90  Inc VAT
SONOFF T2 EU/US/UK AC 100-240V 2 Gang TX Series 433Mhz WIFI Wall Switch RF Smart Wall Touch Switch (Sonoff 2way light switch)
Description:

The WiFi smart switches with 1-3 gangs of T2(EU & UK &US) available in white. Additionally T1, T2 and T3 support 433MHz remote controller to control.
All switches can be controlled remotely using your phone, and devices connected with switches can work independently. Works with Amazon Alexa and Google Assistant which let you turn on or off your appliances with a voice command, perfect for those need to handle much housework simultaneously. Features sensitive touch buttons that are attached on the simple and stylish switches to ensure a modern and nice decoration on any wall surface. A slight tap for easier control. If worry your monthly electricity bill is overwhelmed by power-hungry appliances, or wanna turn on your coffee maker while you’re sitting on the sofa, the time schedule is a good choice. Set a time for devices and the switches will help you turn on or off them automatically. Tailor smart scene for your appliances. simply set an event to happen to trigger one SONOFF device or groups of devices with a tap on your phone. Your devices will not run because of an abnormal WiFi network, the LAN control hence is designed to make sure they can work normally.
Compatible with IFTTT function, the switches can communicate with a slew of devices and services, to trigger them on or off. There are several complicated steps when we start to access a smart home, to pair, enter account and password, name and so on. The share control provides you a quick way to allow you and your family to control devices together. You’re not sure whether turning off the heater when leaving home, just take your phone out and open the eWeLink app to check the real-time device status.

Manual:
Compare TX Models
TypeT0T1T2T3
433MHzNoYesYesYes
ColorWhiteWhiteWhiteBlack
EUYesYesYesYes
UKYesYesYesYes
USYesNoYesYes
Note:No a border on the T0 & T1(EU&UK) panel, T2 & T3 with a border.
All US series with a border

Features:

Model: T2
Standard: US/UK/EU

Gang: 1 gang/2 gang/3 gang
Color: White
Input: 1C: AC 100-240V 50/60Hz 2A Max
          2C: AC 100-240V 50/60Hz 4A Max
          3C: AC 100-240V 50/60Hz 3A Max
Output: 1C: AC 100-240V 50/60Hz 2A Max
             2C: AC 100-240V 50/60Hz 2A/Gand 4A/Total
             3C: AC 100-240V 50/60Hz 1A/Gang 3A/Total 
LED load: 1C/2C: 150W/110V(per channel)
                             300W/220V(per channel)
                 3C: 60W/110V(per channel)
                       100W/220V(per channel)
Operating systems: Android_4.1 or higher&iOS 9.0 or higher
Enclosure Material: PC V0 toughened glass panel
Wireless Standard: IEEE 802.11 b/g/n 2.4G
RF: 433.92MHz
EU/UK Size: 86*86*35mm
US Size: 120*74*38mm

Specifications:

- Remotely control devices through a phone
- Turn on/off devices with Amazon Alexa and Google Assistant
- Touch control buttons for convenient operation
- Set a particular time to turn on/off devices
- Customize one or groups of SONOFF devices to turn on/off with a simple tap
- Allow you to manage devices when there is no WiFi network in your space
- Control the device with your family together via device sharing
- Sync the real-time device status to your phone
- IFTTT service triggers a bunch of actions
- Can be managed by the 433MHz remote controller (not included)

Package includes:

1 x SONOFF T2 Smart Switch
R459.91  Inc VAT
Buck Converter Step Down DC 24V to 12V 5A 60W Voltage Regulator (24 to 12V step down regulator)
Description :

A buck converter (step-down converter) is a DC-to-DC power converter which steps down voltage from its input (supply) to its output (load). 

1. Over current protection.
2. Short circuit protection

 Specification :
Minimum pressure2V
Input VoltageDC 24V(DC15V—40V)
Output VoltageDC 12V
Output Power60W
Output Current5A
Conversion Efficiency90%
Full Load Temperature Rise50 degree
 
Package includes :

1 X Buck Converter Step-Down Voltage Regulator
R219.90  Inc VAT
M6X25 Extruder 1.75mm Thread Nozzle Throat With Teflon For 3D Printer (thread nozzle throat 3d print)
Description:

Original thread nozzle throat for PTFE tube inside Hotend Assembly heat sink. Fits a variety of 3D printers

Specifications:

M6 X 25
Applicable 1.75MM
Material: Stainless steel
Suitable for printers such as E3D
Inner diameter: 2MM
With Teflon

Package includes:

1 x M6X25 Extruder Accessory 1.75mm Thread Nozzle Throat
R34.90  Inc VAT
Creality 3D® 40 teeth 5mm Brass Extrusion Wheel Gear With M3 Screw For 3D Printer (brass feed gear)
Description:

The gear should fit most Reprap type 3D printers and you shouldn't have to re-calibrate, but it's always good practice to re-calibrate after swapping parts or upgrading. 

Easy and convenient for installation and disassemble, reliable and durable to use. Wonderful replacement for the old or broken one, directly fitment.
Suitable for most models in the market, to mention a few Ender3/3s /V2/5, for CR10/10s /V2, etc.
Made of high quality brass, durable and not easy to wear out, durable to use.

Specifications:

Model: 40 teeth extrusion wheel
Material: Brass
Inner hole diameter: 5mm
Outer diameter: 11mm
Length: 11mm
Fix screw: M3 inner hexagon


Features:

High stability, compatible with other brand printers

Package Includes:

1 x Creality 3D® brass extrusion gear
R26.90  Inc VAT
Drillpro 3Pcs 1/4 Inch Hex Shank HSS Titanium Coated Step Drill Bit Set 3-12/4-12/4-20mm (Shank drill bit set)
Description:

HSS drill bits, an acronym for high speed steel drill bits are extremely hardwearing and particularly well designed for drilling into metal surfaces, as they are much more resistant to the heat generated from the fast speed operation. The front edges cut the material, whilst the spirals remove debris from the hole.

Specifications:

Brand: Drillpro
Material: HSS / High Speed Steel
Surface Treatment: Titanium Coated
Shank Size: 1/4" Hex Shank
Includes a five-step bit, nine-step bit and ten-step bit.
Quantity: 3pcs
 
The 3 Cutters Come in the Following Sizes:
4-12mm: 4mm,6mm,8mm,10mm,12mm
4-20mm: 4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm
3-12mm: 3mm,4mm,5mm,6mm,7mm,8mm,9mm,10mm,11mm,12mm
 
Features:
This is the New HSS Steel Large Step Cone Drill Titanium Bit Set Hole Cutter, which is made from high quality HSS steel, Titanium coated to reduce friction and heat
It is very suitable to cut holes in a variety of materials including steel, brass, wood, plastic, etc
 
Package Includes:
1x Set (3pcs) HSS Step Drill Bit
R199.90  Inc VAT
PiJuice HAT - A Portable Power Platform For Every Raspberry Pi (PiJuice HAT)
Description:

As one of the smallest systems around there are so many amazing things you could do with the Raspberry Pi if it was self-powered and portable. Introducing PiJuice! A fully uninterruptible power supply that will always keep your Raspberry Pi powered.

Our revolutionary PiAnywhere technology contained in every PiJuice HAT - is the best way to take your Pi off the grid! The real time clock (RTC) on board will let your Pi know what time it is even with no power input or internet connection. Alongside this is an integrated microcontroller (MCU) chip which will manage soft shut down functionality and a true low power deep sleep state and intelligent startup.

You will be able to always keep track of the charge levels and other info with the two built-in tri-coloured RGB LEDs, trigger events and scripts with the three programmable buttons and since the PiJuice will use up to just five of your GPIO pins (just power and I2C), the rest are free to diversify your project. The stacking header allows you to continue to use your existing HATs and add-ons with PiJuice.

Keep your Raspberry Pi running with solar, wind and other renewable power.

Ultimate integrated power is one thing but what if we could make the Raspberry Pi renewably powered too? Solar, wind, thermoelectric and other renewable power is free, clean, and green and we're proud to have developed an affordable and efficient renewable power solution for the Raspberry Pi! PiJuice is self-monitoring and, like a space satellite, can become a completely autonomous system. Use the PiJuice as part of an autonomous camera system, weather stations, off-grid desktops, and so many other great outdoor projects. View and buy the solar panels separately.

PiJuice Video

https://youtu.be/ESVaLw51YL8

PiJuice Features:

  • Onboard 1820 mAh off the shelf Lipo / LiIon battery for ~4 to 6 hours in constant use! (with support for larger Lipo Battery of 5000 or 10,000 mAH to last up to 24 hrs )
  • A Full Uninterrupted / Uninterruptable Power Supply solution.
  • Designed for the Raspberry Pi boards A , B , 2B, 3B, 3B and Pi4 but also compatible with Raspberry Pi Zero v1.3 and Raspberry Pi Zero Wireless.
  • Integrated Real Time Clock
  • Onboard intelligent on/off switch
  • Low power deep-sleep state with wake on interrupt/calendar event
  • Programmable multi-colored RGB led (x2) and buttons (x3) with super simple user-configurable options
  • Hardware watchdog timer to keep your Raspberry Pi on and working in mission-critical remote applications
  • Our revolutionary PiAnywhere technology ? the best way to take your Pi off the grid!
  • Full power management API available to Raspberry Pi OS with auto shutdown capability when running low on batteries
  • Raspberry Pi HAT compatible layout, with onboard EEPROM for easy plug and play operation
  • Low profile design to fit inside lots of existing Raspberry Pi cases!
  • Enhanced graphical user interface (GUI) available for easy install (via APT)
  • Customisable scripts for enhanced flexibility and full report of battery status
  • All GPIOs available via stackable header for ease of expandability and connectivity
  • Charge via on-board micro USB or via the Raspberry Pi micro USB (or from onboard pin headers)
  • Batteries can be charged from different type of sources and voltages
  • Replace the battery without downtime. Compatible with any single cell LiPo or LiIon battery
  • Fully CE and FCC tested design. Battery safety tested also.

Technical Information

  • The EEPROM can be disabled and its I2C address changed for increased compatibility with other boards
  • BP7X battery - original battery from Motorola Droid 2 (A955) - 1820mAh battery
  • Microcontroller is an ST Micro STM32F030CCT6 ARM Cortex-M0, 48MHz, F64KB, R8KB, I2C, SPI, USART, 2.4-3.6V
  • Charge IC - BQ24160RGET Charger IC Lithium-Ion/Polymer, 2.5A, 4.2-10V
  • Fuel gauge IC - LC709203FQH-01TWG Battery Fuel Gauge, 1-Cell Li-ion, 2.8%
  • EEPROM - CAT24C32WI-GT3 EEPROM, I2C, 32KBIT, 400KHZ, 1V7-5V5
  • Optional spring pin - Mil-Max 0929-7-15-20-77-14-11-0
  • Compatible with any 4 pin battery on board that can be used with 00-9155-004-742-006 battery contacts from AVX including the BP7X, BP6X, and any compatible batteries including the 1600mAh and 2300mAh ones from CameronSino (CS-MOA853SL and CS-MOA855XL)
  • There is an on board 4 pin screw terminal block for larger off board batteries. Any single cell LiPo / LiIon is compatible. However, you use your own sourced battery at your own risk. We HIGHLY RECOMMEND using a battery with an internal protection circuit and a NTC (temp sensor)
  • Optional header for offboard button - connected to same output as SW1
  • 6 pin breakout header - with two GPIO from the ARM Cortex-M0, Vsys, 5v0, 3v3, GND connections
  • Header for optional off board solar panel / wind turbine etc.
  • Optional RF Shield attachment - Harwin S02-20150300 (can also double as an inexpensive heatsink)
  • Input voltage range - 4.2V 10V
  • Output voltage - 3.3V and 5V
  • Output amperage - maximum current at 5V gpio is 2.5A and at VSYS output 2.1A, but also this depends heavily on battery capacity. For BP7X have measured around 1.1A at 5V GPIO and around 1.6A at VSYS output. Obviously, this also depends heavily on the current draw demanded by the Raspberry Pi/device itself. To achieve a maximum of 2.5A it will need battery over 3500mAh.
  • Boxed weight - 96g
  • Boxed dimensions - 12.2 x 10.8 x 3.5 cm
  • Unboxed weight - 57g
  • Unboxed dimensions - 6.5 x 5.6 x 2 cm

PiJuice HAT box contains

  • 1 x PiJuice HAT
  • 1 x Battery and battery surround
  • 1 x PiJuice guide
  • 4 x Mounting posts attached to PiJuice
  • 8 x Mounting screws (4 are already assembled to the board)
  • 1 x Pogo pin
  • 3 x Stickers

Software & Resources

R869.90  Inc VAT
WS 10.1inch Resistive Touch Screen LCD HDMI interface (10.1 Resistive touch display)
Features
  • 1024×600 high resolution
  • Resistive touch control
  • Compatible and Direct-connect with any revision of Raspberry Pi (except the Pi 1 model B or Pi Zero, which requires an HDMI cable)
  • Drivers provided (works with your own Raspbian/Ubuntu directly)
  • Also works as a computer monitor, in this case, touch panel is unavailable and HDMI cable is required
  • HDMI interface for displaying, no I/Os required (however, the touch panel still needs I/Os)
  • Backlight can be turned off to lower power consumption

Interface:

PIN NO.SYMBOLDESCRIPTION
1, 173.3VPower positive (3.3V power input)
2, 45VPower positive (5V power input)
3, 5, 7, 8, 10, 11, 12, 13, 15, 16, 18, 24NCNC
6, 9, 14, 20, 25GNDGround
19TP_SISPI data input of Touch Panel
21TP_SOSPI data output of Touch Panel
22TP_IRQTouch Panel interrupt, low level while the Touch Panel detects touching
23TP_SCKSPI clock of Touch Panel
26TP_CSTouch Panel chip selection, low active

External Dimensions




Development Resources

Wiki : www.waveshare.com/wiki/10.1inch_HDMI_LCD

R1,799.90  Inc VAT
WS 4G / 3G / 2G / GSM / GPRS / GNSS HAT for Raspberry Pi, LTE CAT4 (4G Hat)
Please note: The Raspberry Pi is not included

Overview

The SIM7600E-H 4G HAT is a 4G/3G/2G communication and GNSS positioning module, which supports LTE CAT4 up to 150Mbps for downlink data transfer. it is pretty low power consumption.

You can connect this 4G module with computer to surf the Internet, or attach it onto Raspberry Pi to enable functions like 4G high speed connection, wireless communication, making telephone call, sending SMS, global positioning, etc.

Features
  • Raspberry Pi connectivity, compatible with Raspberry Pi Zero/Zero W/Zero WH/2B/3B/3B /4B
  • Supports dial-up, telephone call, SMS, MMS, mail, TCP, UDP, DTMF, HTTP, FTP, etc.
  • Supports GPS, BeiDou, Glonass, LBS base station positioning
  • Onboard USB interface, to test AT Commands, get GPS positioning data, and so on
  • Onboard CP2102 USB to UART converter, for serial debugging
  • Breakout UART control pins, to connect with host boards like Arduino/STM32
  • SIM card slot, supports 1.8V/3V SIM card
  • TF card slot for storing data like files, messages, etc.
  • Onboard audio jack and audio decoder for making telephone call
  • 2x LED indicators, easy to monitor the working status
  • Onboard voltage translator, operating voltage can be configured to 3.3V or 5V via jumper
  • Baudrate: 300bps ~ 4Mbps (default: 115200bps)
  • Autobauding baudrate: 9600bps ~ 115200bps
  • Control via AT commands (3GPP TS 27.007, 27.005, and V.25TER command set)
  • Supports SIM application toolkit: SAT Class 3, GSM 11.14 Release 99, USAT
  • Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32)
Communications Specifications
 LTEWCDMA / TD-SCDMA / CDMA 2000EDGEGSM/GPRS
BandSIM7600E-H:
-- LTE-FDD B1/B3/B5/B7/B8/B20
-- LTE-TDD B38/B40/B41
SIM7600E-H:
-- UMTS/HSPA B1/B5/B8
GSM/GPRS/EDGE 900/1800 MHz
SIM7600CE-T:  
-- LTE-TDD B38/B39/B40/B41
-- LTE-FDD B1/B3/B8
SIM7600CE-T:
-- UMTS/HSDPA/HSPA B1/B8
-- TD-SCDMA B34/B39
-- CDMA 1X/EVDO BC0
Generation4G3G2.5G2G
Emitting power0.25W[email protected]
[email protected]
[email protected]
[email protected]
Data SpeedLTE CAT 4
Uplink≤50 Mbps
Downlink≤150 Mbps
UMTS
Uplink≤384Kbps
Downlink≤384Kbps
EDGE
Uplink≤236.8kbps
Downlink≤236.8kbps
GPRS
Uplink≤85.6kbps
Downlink≤85.6kbps
   HSPA
Uplink≤5.76Mbps
Downlink≤42Mbps
      
SIM CardNormal SIM (Not Included)
Applicable RegionSIM7600E-H is mainly applicable in Southeast Asia, West Asia, Europe, Africa, SIM7600CE-T is mainly applicable in China.
Please check the supported bands according to your local service provider, select the proper one when placing order.
GNSS Specifications
  • Receiver type
    • 16-channel
    • C/A code
  • Sensitivity
    • Tracking: -159 dBm (GPS) / -158 dBm (GLONASS) / TBD (BD)
    • Cold starts: -148 dBm
  • Time-To-First-Fix (open air)
    • Cold starts: <35s
    • Hot starts: <1s
  • Accuracy
    • Position: <2.5m CEP
SMS and Audio Specifications
  • SMS
    • Supported types: MT, MO, CB, Text, PDU
    • Storage: USIM card and ME (default)
  • Audio feature
    • Supports echo cancellation
    • Supports noise reduction
Other Specifications
  • Power supply: 5V
  • Operating voltage: 5V/3.3V (configured via jumper)
  • Operating temperature: -30°C ~ 80°C
  • Storage temperature: -45°C ~ 90°C
  • Dimension: 56.21mm x 65.15mm
What's on Board
  1. SIM7600E-H
  2. CP2102 USB to UART converter
  3. NAU8810 audio decoder
  4. TXS0108EPWR voltage translator: translates 3.3V/5V into 1.8V
  5. MP2128DT power chip
  6. MP1482 power chip
  7. Raspberry Pi GPIO header: for connecting with Raspberry Pi
  8. SIM7600 control interface: for connecting with host boards like Arduino/STM32
  9. SIM card slot: supports 1.8V/3V SIM card
  10. TF card slot: allows file/SMS/... storage
  11. 3.5mm earphone/mic jack
  12. USB interface: for testing AT Commands, getting GPS positioning data, etc.
  13. USB to UART interface: for serial debugging, or login to Raspberry Pi
  14. MAIN antenna connector
  15. AUX antenna connector
  16. GNSS antenna connector
  17. Power switch
  18. Network status indicator
  19. Power indicator
  20. Operating voltage selection jumper:
    VCCIO - 3.3V: set operating voltage as 3.3V
    VCCIO - 5V: set operating voltage as 5V
  21. UART selection jumper:
    A: access Raspberry Pi via USB to UART
    B: control the SIM7600 by Raspberry Pi
    C: control the SIM7600 via USB to UART
Dimensions


Development Resources

Wiki : www.waveshare.com/wiki/SIM7600E-H_4G_HAT

R1,299.90  Inc VAT
Standard (55°) MLX90640 Thermal Camera Breakout (55 Thermal camera std 55)
MLX90640 Thermal Camera Breakout

How to use Picamera with Raspberry Pi OS Bullseye: https://www.youtube.com/watch?v=E7KPSc_Xr24&list=WL&index=2

Description:

A sophisticated, hackable, 32x24 pixel thermal camera breakout! Use it to monitor the temperature of your CPU or coffee pot, or to build your own heat-seeking night vision camera. Works with Raspberry Pi or Arduino.

It's perfect for building into projects - industrial, scientific, or just fun - and much more affordable than most thermal cameras. Our breakout makes it easy to use the camera with your Raspberry Pi or Arduino, using I2C and 3-6V supply. And it's available in two different fields of view, 55° (standard) or 110° (wide angle) depending on your preference.

The MLX90640 far-infrared camera is an array of 768 (32x24) thermal sensors that can detect temperatures from -40 to 300°C with approximately 1°C accuracy and up to 64FPS! The applications of this camera are manifold: measure the heat or heat dissipation of devices like CPUs, circuit boards, or electrical appliances; use it to identify thermal inefficiencies in your home; or use it for presence detection to identify bodies in complete darkness.

Features

  • Melexis MLX90640 far-infrared sensor array (datasheet)
  • 32x24 pixels
  • Field of view: 55°x35° or 110°x75°
  • Up to 64FPS
  • -40 to 300°C detection with approximately 1°C accuracy
  • I2C interface (address 0x33)
  • 3.3V or 5V compatible
  • Reverse polarity protection
  • Compatible with all models of Raspberry Pi, and with certain Arduino models

Kit includes

  • MLX90640 breakout
  • 1x5 male header
  • 1x5 female right-angle header

We've designed this breakout board so that you can solder on the piece of right-angle female header and pop it straight onto the bottom left 5 pins on your Raspberry Pi's GPIO header (pins 1, 3, 5, 7, 9).

Software

We've written software in C that you can use to generate images and video from the MLX90640 cameras.

SparkFun also provide an example Arduino/Processing sketch for the MLX90640.

Our software does not support Raspbian Wheezy.

Python code

R1,199.90  Inc VAT
9-50V 2000W 40A DC Motor Speed Control Module PWM HHO RC Controller (black 9-50V speed controller)
Description:

As its name suggests, pulse width modulation speed control works by driving the motor with a series of “ON-OFF” pulses and varying the duty cycle, the fraction of time that the output voltage is “ON” compared to when it is “OFF”, of the pulses while keeping the frequency constant.


Features:

Power requirement: 9-50V
DC Rated current:  40A (Maximum output current)
Frequency:  12000HZ
Control Motor Power:  0.01-2000W
Working voltage 12V:  480W (max)
Working voltage 24V:  960W (max)
Working voltage 36V:  1440W (max)
Working voltage 50V:  2000W (max)
Regulation range: 5-100%
PCB Size: Approx. 9 x 5.1cm / 3.55 x 2.01 inch
Case size: Approx. 10.5 x 5.5 x 4cm / 4.0 x 2.17 x 1.6 inch

Package included:

1 x DC Motor speed controller
R299.90  Inc VAT
Geekcreit® 3D Printer A4988 Reprap Stepper Motor Driver Module (red stepper driver)
Description:

A4988 is a complete microstepping motor driver with built-in translator for easy operation. This product is available in full, half, 1/4, 1/8 and 1/16 step modes operate bipolar stepper motors, output drive capacity of up to 35 V and ± 2 A. A4988 includes a fixed off-time current regulator, the regulator in slow or mixed decay modes. A4988 converter is the key to the easy implementation. As long as the "step" input inputting one pulse drives the motor one microstep. There are no phase sequence tables, high frequency control lines, or complex interfaces to program.

In the micro-step operation, A4988 chopping control inside automatically selects the current decay mode (Slow or Mixed). In mixed decay mode, the device is initially set to a fixed downtime in some fast decay, then the rest of the slow decay downtime. Mixed decay current control scheme results in reduced audible motor noise, increased step accuracy, and reduced power consumption. Internal synchronous rectification control circuitry is provided to improve the pulse-width modulation (PWM) operation power consumption. Internal circuit protection includes: thermal shutdown with hysteresis, undervoltage lockout (UVLO), and crossover-current protection. Special power sequencing.

A4988 surface mount QFN package (ES), a size of 5 mm × 5 mm, nominal overall package height of 0.90 mm, with an exposed pad for enhanced thermal dissipation. This package is Pb (suffix-T), with 100% matte tin leadframe plating.

Features:

Simple step and direction control interface
Short-to-ground and shorted-load protection
Five different step resolutions: full-step, half-step, quarter-step, eighth-step, and sixteenth-step
Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay)
Over-temperature thermal shutdown, under-voltage lockout, and crossover-current protection
Adjustable current control lets you set the maximum current output with a potentiometer, which lets you use voltages above       your stepper motor’s rated voltage to achieve higher step rates

Package includeds:

1 x Step motor driver module

How to control a stepper motor with Arduino
R39.90  Inc VAT
3018 3 Axis Mini DIY CNC Router Standard Spindle Motor Wood Engraving Machine (mini milling machine)
Specification:
General Specification
 Model Mini CNC3018 (Without Laser Module)
 Frame Material Aluminum Alloy
 Color Silver
 Table Area Approx. 340x160mm
 Working Area Approx. 340x160x40mm
 Product Weight 7.5kg
 Control Software for Spindle GrblControl
 Control Software for Laser Litefire
 System Requirements Windows XP SP3, Win7, Win8, Win10.
 Adapter Plug 2-Pin US Plug
 Adapter Input Voltage AC 110-240V 50/60Hz
 Adapter Output Voltage DC 24V 4A
 Features 1. Aluminum Profile Stable Construction
 2. 3 Axis Movable, Powerful Spindle Motor
 3. Contains Quickstart Guide of GRBL Software
 4. 340x160x40mm Working Area, Meet Most Amateur DIY Needs
 5. Engrave Wood, Plastic, Acrylic, PCB, or Similar Material
     Can Not Engrave Metal, Steel, Aluminum.
 Technical Parameters
 Working Voltage DC 24V
 Interface USB
 Stepper Motor 42 Stepper Motor, Voltage: 12V, Phase Current 1.3A, Torque 0.25N.m
 Spindle Motor 775 Spindle Motor (12-36V) 24V: 7000r/min, 36V: 9000r/min
 Spindle Motor Shaft Diameter  5mm

Features:
- Assembly requires a certain mechanical skill. All assembly components are included.
- Engraving Materials: The machine can carve wood, plastic, acrylic, PCB, or the like materials.
- Can Not Engrave: Hard metal (such as brass, steel, iron, etc), jade and other very hard texture items.
 
Note:
1. Instructions & Software: Assembly instructions, control software and further information please use this link https://www.dropbox.com/sh/ybh0xihxeco9szp/AAAt8XkxL1V_5AkwQN2K-w17a?dl=0
2. This item contains the spindle motor, but no laser module. If you want to use laser for engraving, you can buy it additionally. Thanks for your understanding, and please note that the input interface (Should be XH2.54-3P or XH2.54-2P) and input voltage (Should be DC 12V) of the laser module should be compatible with the control board on 3018. Besides, the original motor holder is round, please make sure the shape of your laser module is suitable for installation.
Now we recommend the laser module (2500mW Blue Laser Module) produced by the
 original manufacturer.
 
Package Includes:

1 x Wood Engraving Machine Full Set (Unassembled Delivery)
R5,999.90  Inc VAT
Creality 3D® Printer M6 Thread Nozzle Brass Pneumatic Connector Quick Joint For Extruder (3D coupler small)
Description:

M6 Thread Nozzle Brass Pneumatic Connector Quick Joint For Extruder 

Specifications:

Product configuration: 4mm x 2mm Teflon tube
Product thread: M6 thread
Product use: Extruder
Material: Brass


Package Inlcudes:

1 x Creality 3D® pneumatic Connector
R39.90  Inc VAT
1M PTFE Nozzle Feed Teflon Tube For 3D Printer 1.75mm Filament (print feed tube 1m)
Features:

1. Resistance to high and low temperature, from -190℃ to  280℃
2. Corrosion resistance
3. Feed tube for 3D printer 1.75mm filament


Specifications:

Length: 1 meter
Diameter: 2mm x 4mm(inner diameter x outer diameter)
Color: Milky white
Temperature: -190℃ to 280℃


Package Includes:

1m 3D Printer Teflon Tube
R29.90  Inc VAT
Machifit 8mm Lock Collar for T8 Lead Screw (T8 lock collar)
Description:
Machifit 8mm Lock Collar suitable for T8 lead screw, and made durable to increase efficiency.
The shaft collar is a simple, yet important, machine component found in many power transmission applications, most notably used in CNC and 3D printing Machines. The collars are used as mechanical stops, locating components, and bearing faces. The simple design lends itself to easy installation. 

Specification:
ModelT8
Material
stainless steel
Inner diameter8mm
Outter diameter14mm
Width7mm
Quantity1pcs

Package Includes:
1 x T8 Lead Screw Lock Collar
R19.90  Inc VAT
230Pcs XH2.54 2P 3P 4P 5 Pin 2.54mm Pitch Terminal Kit / Housing / Pin Header JST Connectors (JST header kit)
Description:

JST connectors are electrical connectors manufactured to the design standards originally developed by J.S.T. Mfg. Co. (Japan Solderless Terminal). JST manufactures numerous series (families) and pitches (pin-to-pin distance) of connectors.

JST XH connectors were developed based on the high reliability and versatility of the NH series connectors




Package Includes:

2pin = 10Sets =20PCS   
3pin = 10Sets =20PCS   
4pin = 10Sets =20PCS   
5pin = 10Sets =20PCS   
Pin Connector Terminal :150PCS

230Pcs XH2.54 2P 3P 4P 5 Pin 2.54mm Pitch Terminal Kit / Housing / Pin Header JST Connectors
R72.90  Inc VAT
Cambridge University Press - Coding Club Python Basics Level 1 (Python Basics Level 1)
Description:

The programming language Python 3 is used to introduce the principles of programming. In this book you learn how to write simple programs that include My8Ball, a number guessing game and a small graphical application called MyEtchASketch.

More importantly, by the end of the book, you should be able to write your own short programs and be able to fully customise both the look and how the various programs you have made to your own liking.

Chapter 1

Ch.1 - Python, IDLE & Your First Program:
In this Chapter you are going to:

   >>> Meet the programming language you are going to learn about.
   >>> Meet IDLE which will help organise and run your code easily.
   >>> Check that your computer is set up correctly.
   >>> Write and run your first program.

Chapter1.pdf

Chapter 2

Ch.2 - Some text, some maths & going loopy:
In this Chapter you will be able to:

   >>> Learn how to do some more with texts.
   >>> Get Python to do some maths for you.
   >>> Learn about how loops work.
   >>> Learn lots of useful operators.

Chapter 3

Ch.3 - Readable code and My8Ball Game:
In this Chapter you will be able to:

   >>> Write and save a Python file using Script Mode.
   >>> Learn how to write clear readable code.
   >>> Run a Python file.
   >>> Learn about how to get user input.
   >>> Learn about if and else clauses.
   >>> Write a short game called MyMagic8Ball.


Here is a movie of this chapter's project: my8ball.py

Chapter 4

Ch.4 - Functions:
In this Chapter you will be able to:

   >>> Learn about functions .
   >>> Write your own functions.
   >>> Create a number guessing game.



Here is a movie of this chapter's project: myNumber.py

Chapter 5

Ch.5 - MyEtchASketch:
In this Chapter you will be able to:

   >>> Learn how to use the tkinter library.
   >>> Make your own Etch A Sketch game.
   >>> Learn how to put an application in its own window.
   >>> Learn how to attach functions to keyboard presses.



Here is a movie of this chapter's project: myEtchaSketch.py
Here is a movie of a two player version: ourEtchaSketch.py

Answers to Challenges

Click below to find the answers to the puzzles and challenges in Python Basics.

Answers

R219.90  Inc VAT
SX1278 LoRa Module 433M 10KM Ra-02 Ai-Thinker Wireless Spread Spectrum Transmission Socket (lora module)

Description

Ra-02 is a wireless transmission module based on SEMTECH's SX1278 wireless transceiver. It adopts advanced LoRa spread spectrum technology, with a communication distance of 10,000 meters. It has strong ability of anti-jamming and has the function of air wake-up Consumption. Can be covering thousands of people in the district environment, particularly suitable for meter reading, smart home, burglar alarm equipment.

The LoRa series module Ra-01 is designed and developed by AI-THINKER Technology. The SX1278 RF module is mainly used for long-range spread spectrum communication. It can resist Minimize current consumption. Thanks to SEMTECH's patented LoRa ™ modulation technology, the SX1278 has a high sensitivity of -148 dBm with a power output of 20 dBm, a long transmission distance and high reliability. At the same time, compared with the traditional modulation technology, LoRa ™ modulation technology has obvious advantages in anti-blocking and selection, which solves the problem that the traditional design scheme can not consider the distance, interference and power consumption at the same time.

Features

  • LoRa ™ Spread Spectrum modulation technology
  • Constant RF power output at 20dBm-100mW voltage change
  • High sensitivity: down to -148dBm
  • Half-duplex SPI communication
  • Programmable bit rates up to 300kbps
  • Supports FSK, GFSK, MSK, GMSK, LoRa ™ and OOK modulation modes
  • 127dB RSSI dynamic range
  • Automatic RF signal detection, CAD mode and very high speed AFC
  • Packet engine with CRC up to 256 bytes
  • Small footprint dual-row stamp-hole patch package
  • Shielded housing
  • Spring Antenna

Package List

1 x LoRa Ra-02 Module SX1278 433M Wireless

Manual and techsupport:

 https://github.com/IOT-MCU

R169.90  Inc VAT
cnc shield v3 engraving machine 3D Printer board 4pcs A4988 driver expansion board for Arduino UNO R3 with USB cable (uno cnc control kit)
Description:

Perfect for engravers, laser cutters, CNC machines and 3D printers. This shield simply sticks on top of your Arduino board and can control up to 4 stepper motors.

Features:
CNC Shield Board:
 
Latest CNC Shield Version 3.0 for Arduino.
GRBL 0.9 compatible. (Open source firmware that runs on an UNO for Arduino that turns G-code commands into stepper signals)
PWM Spindle and direction pins
4-Axis support (X, Y, Z , A-Can duplicate X,Y,Z or do a  full 4th axis with custom firmware using pins D12 and D13)
2 x End stops for each axis (6 in total)
Coolant enable
Uses removable A4988 or DRV8825 compatible stepper drivers
Jumpers to set the Micro-Stepping for the stepper drivers. (Some drivers like the DRV8825 can do up to  1/32 micro-stepping )
Compact design.
Stepper Motors can be connected with 4 pin molex connectors or soldered in place.
Runs on 12-36V DC. (At the moment only the DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.)
Please note that this is an unassembled kit and Basic soldering skills are needed.
 
A4988 Stepper Motor Driver:
 
A4988 Stepper Motor Driver Board is a breakout board for Allegro’s A4988 DMOS Micro stepping Driver with Translator and Overcurrent Protection; please read the A4988 datasheet carefully before using this product.
Low RDS (On) Output
Automatic current decay mode  detection / selection
Mix with slow current decay modes
Synchronous rectification for low power dissipation
Internal UVLO
Crossover-current protection
3.3 and 5 V compatible logic supply
Thermal shutdown circuitry
Ground fault protection
Load short-circuit protection
Five selectable step modes: full,  1/2, 1/4, 1/8 and 1/16
Warning: Connecting or disconnecting a stepper motor while the driver is powered can destroy the driver. (More generally, rewiring anything while it is powered is asking for trouble).

Step 1: Download the GRBL HEX file https://github.com/gnea/grbl/releases/tag/v1.1f.20170801
Step 2: Download XLoader https://github.com/xinabox/xLoader
Step 3: Open XLoader and Load the HEX File downloaded in Step 1.
Step 4: Select the current Board - Uno(ATmega328) and COM port.
Step 5: Press Upload.
DONE!


Package Includes:
1 X cnc shield v3
4 X A4988
4 X Heatsink
1 X UNO R3
1 X USB cable
R419.90  Inc VAT
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