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Machine screw cheese head slot and nuts M3x6 ST/ST 304 (ScrewM3x6 nut 10pack)
Pic is for illustration purposes only
Description:

Cheese Head Machine Screws have a round cylindrical head with a flat top, usually have a slot drive. Slotted screw heads are perhaps the oldest and most common variety; a linear slot in the head accepts a standard screwdriver, which is also called a flat-head screwdriver. Machine screws have finer threads than wood screws. They are designed to be used in conjunction with a nut or tapped hole. Zinc plated

Packing
10 x screws
10 x nuts
R12.90  Inc VAT
LED RGB Common Cathode 4-Pin F5 5MM Diode (5 pack) (LED RGB (5))
Description:

Convenient for DIY projects
Perfect use for home, office and industry electrical equipment and electrical appliances


Features:
 
Current : 3V
Voltage: 20 mA
Size: 5mm 
Light Color: RED, BLUE, GREEN

What's in the box:

5 x RGB LED Diodes

Resources:

Read the docs
R8.90  Inc VAT
L298N Dual H-Bridge Stepper Motor Driver Board (H Bridge big red dual stepper)
Description:

The L298N is a dual H-Bridge motor driver which allows speed and direction control of two DC motors at the same time. The module can drive DC motors that have voltages between 5 and 35V, with a peak current up to 2A.

Specifications:

Double H bridge drive
Chip: L298N (ST NEW)
Logical voltage: 5V
Drive voltage: 5V-12V
Logical current: 0mA-36mA
Drive current: 2A (MAX single bridge)
Storage temperature: -20 to 135
Max power: 25W
Weight: 30g
Size: 43 x 43 x 27mm

Note:

This module has a built-in 5v power supply, when the driving voltage is 7v-12v, this supply is suitable as a power supply.
DO NOT connect input voltage to 5v on controller interface.
When ENA is enabled IN1 IN2 control OUT1 OUT2
When ENB is enabled IN3 IN4 control OUT3 OUT4

Note:  Package does not include the board mounting screws.

Package includes:

1 x  L298N Module

Resources:

Robotic control with python



R39.90  Inc VAT
Raspberry Pi MF Standoff HAT Mounting Kit(11mm) (MF hat mounting kit)
Description:

Need to securely mount your Raspberry Pi HAT to your Raspberry Pi? You need our HAT mounting kit!

The 11mm spacers in the kit fit between the Pi PCB and the HAT, and can be secured using the included M2.5 bolts and nuts.

What's in the box?:

  • 4 x M2.5 x 11mm Male to Female Standoffs
  • 4 x M2.5 +5 Bolts
  • 4 x M2.5 Nuts
R19.90  Inc VAT
Four Digit - Seven Segment Display - Red (display 7 segment red)
Description:

This lovely little (14.2mm) seven segment display provides excellent segment uniformity and is highly visible up to seven meters away. It's ultra bright, and provides great readability even in bright ambient light!

It has four digits and a decimal point on each digit, designed for numeric output, so you can use it to add a clock, timer or counter into your next project.

These displays are multiplexed, common-cathode. What that means it that you can use a 74HC595 or just 8 microcontroller pins if you can spare them to control the 8 anodes (7-seg decimal) at about ~15mA each, and then connect NPN transistors or a TPIC6B595 to the cathodes to sink the 8*20mA = ~120mA maximum per digit.

This is an ultra bright RED colour.

Specifications

  • 100mcd
  • 14.2mm (0.56") digit height
  • Color: red (630nm)
  • Common cathode display
  • Maximum power dissipation per segment: 66mW
  • Maximum pulse peak forward current per segment (1/10th duty cycle, 0.1ms pulse width): 100mA
  • Maximum forward current per segment: 20mA
  • Maximum reverse voltage: 5V
  • Maximum reverse current: 20µA
  • Typical forward voltage: 2.1V at 20mA
  • Maximum forward voltage: 2.5V at 20mA
  • Operating temperature range: -30°C - 70°C
  • Typical luminous intensity: 20mcd

Some code examples
https://circuitdigest.com/microcontroller-projects/raspberry-pi-7-segment-display-tutorial
https://raspi.tv/2015/how-to-drive-a-7-segment-display-directly-on-raspberry-pi-in-python
R12.90  Inc VAT
Hall Water Flow Sensor Flowmeter Water Control 2MPa (flow sensor)
Description:

This product is mainly used for water metering
High amplitude ≥ 4.6V
Low amplitude ≤ 0.5V
Electric strength 1250V/min
Insulation resistance ≥ 100MΩ
Hydrostatic pressure testing ≤ 2.0Mpa

Specification:

The lowest rated working voltage: DC4.5 5V-24V
Maximum operating current: 15 mA (DC 5V)
Working voltage range: DC 5~18 v
Load capacity: ≤ 10 mA (DC 5V)
Use temperature: ≤ 80°C
Operating humidity range: 35%~90%RH (no frost)
Allowing pressure: pressure 2.0Mpa
Temperature: -25~ 80 °C
External threads: 1/2"
Outer diameter: 20mm
Intake diameter: 9mm
Outlet diameter: 12mm

Application:

Water heaters, water vending machines, flow measurement

Package included:

1x Water flow sensor

Flow sensor Wiki
An instructable on how to use the Flow Sensor with Arduino
Adafruit experiment connecting the Flow Sensor to a Raspberry Pi

https://www.ardumotive.com/water-flow-sensor-en.html

RPi: https://www.youtube.com/watch?v=8JXd-2_zJQ0

R79.90  Inc VAT
PP Liquid Water Level Sensor Vertical Float Switch Down White (straight float level)
Description :

A compact vertically mounted float switch which can be mounted at either the top or bottom of a tank (by the supplied 'O' ring and nut) to either rise or fall for activation (internal magnet) of a sealed reed relay.
The sensor is supplied pre-wired with flying output leads.
Float switch is a used to sense the level of liquid within a tank, used to activate a pump, an indicator, an alarm or other device.

Use them with hydroponics, saltwater tanks, freshwater tanks, gardening, aquariums for power head control, pet bowls, fish tanks, filtration, heating, or what ever your project may be
Contains no mercury
Down float switch

Specifications :

  • Maximum Load: 50 W
  • Max Switching Voltage: 100V DC
  • Minimum Voltage: 250V DC
  • Maximum Switching Current: 0.5 A
  • Max Load Current: 1.0 A
  • Max Contact Resistance: 0.4 Ω
  • Temp Rating: -20~ 80℃
  • Net Weight: 12g
  • Material: PP




Package includes :

1 x Liquid Float Switch


Resources:

Python library
Introduction to Buttons and Switches
Types of buttons and switches
R29.90  Inc VAT
13.56MHz RC522 Chip IC Card Induction Module RFID Reader (13.56MHz RC522 RFID reader)
Description:

RC522 chip:
MF RC522 is applied to the highly integrated read and write 13.56MHz contactless communication card chip, NXP launched by the company for the "table" application of a low-voltage, low-cost, small size of the non-contact card chip to read and write, smart meters and portable handheld devices developed better choice. The MF RC522 use of advanced modulation and demodulation concept completely integrated in all types of 13.56MHz passive contactless communication methods and protocols. 14443A compatible transponder signals. The digital part of to handle the ISO14443A frames and error detection. In addition, support rapid CRYPTO1 encryption algorithm, terminology validation MIFARE products. MFRC522 support MIFARE series of high-speed non-contact communication, two-way data transmission rate up to 424kbit/s. As new members of the 13.56MHz reader card series of highly integrated chip family, MF RC522 MF RC500 MF RC530 There are a lot of similarities, but also have many of the characteristics and differences. Communication between it and the host SPI mode helps to reduce the connection narrow PCB board volume, reduce costs.

RFID module:
The MF522-AN module uses the the original Philips MFRC522 chip design circuit card reader, easy to use, low cost, and applies to the user equipment development, the reader and the development of advanced applications, the need for the user RF card terminal design/production. This module can be directly loaded into the various reader molds. Utilizes a voltage of 3.3V, through the SPI interface simple few lines directly with any user CPU motherboard connected communication can ensure that the module is stable and reliable work, distance card reader

Specifications:

Electrical parameters:
Operating current :13-26mA/DC 3.3V
Idle current :10-13mA/DC 3.3V
Sleep current: <80uA
Peak current: <30mA
Operating Frequency: 13.56MHz
Supported card types: mifare1 S50, mifare1 S70 MIFARE Ultralight, mifare Pro, MIFARE DESFire
Product physical characteristics: size: 40mm×60mm
Environmental Operating temperature: -20 to 80°C
Environmental Storage Temperature: -40 to 85°C
Relative humidity: relative humidity 5%-95%

Module interfaces SPI Parameter:
Data transfer rate: maximum 10Mbit/s

Package includes:

1 x RFID-RC522 module
1 x Standard S50 blank card (Non-contact IC card)
1 x S50 special-shaped card (key ring shape)
1 x Straight and 1 x angled male to male header(Soldering required)

Resources:

Our setup guide
R43.90  Inc VAT
NFC Smart Card Tag Tags S50 IC 13.56MHz Mifare IC Copier Read Write White Cards (RFID card white 13.56)
Description:

The NC-Rigid NFC Smart Card is a waterproof PVC card with an NFC chip inside. It has 144 usable bytes of data which is suitable for a URL, text, small contact record or single action phone trigger.

Features :
 
Storage Capacity : 8Kbit,16 partitions, each partition group password
Operating Frequency : 13.56MHZ
Communication Speed : 106Kboud
Reading Distance : 2.5-10CM
Read/Write Time : 1-2MS
Operating Temperature : -20 ℃ to 85 deg c
Number of Erase/Write : > 100,000 times
Saving Data : > 10
Color : White
Material : PVC
Size : Approx. 8.5 x 5.4 x 0.1cm/ 3 x 2 x 0.04"
Application Scope : Access control, Water meters prepaid, campus cards, bus cards, highway tolls, parking lots, community management etc
 
Plackage Includes :
 
1 x NFC Smart Card
R24.90  Inc VAT
13.56MHz RFID Tag For Access System Blue (13.56 RFID tag blue)
Description:

This is a basic 13.56MHz RFID tag great for all your security and access control needs.

RFID is an acronym for “radio-frequency identification” and refers to a technology whereby digital data encoded in RFID tags or smart labels

Features :

Small and durable
Waterproof, shockproof, anti-corrosive.
Keyring for easy carrying.

Specifications :


Main Chip : Fudan F08 compatible S50
Colour : Blue,Yellow, Black, Green, Red
Size : Approx. 40.5×32×4.2mm
Operating Frequency : 13.56 MHz
Communication speed : 106K Boud
Read and write distance : 2.5 ~ 10cm
Read and write time : 1 ~ 2ms
Operating Temperature : -20 ℃ ~ 85 ℃
Endurance :> 100,000 times
Storage capacity : 8Kbit, 16 partitions, each partition with 2 group passwords

Typical applications :
Enterprise / campus access cards, parking, district management,attendance systems, patrol systems, enterprise systems, access control systems, radio frequency identification field etc.


Package includes :

1 x 13.56MHz RFID Keyfob
R12.90  Inc VAT
Arcade Kit DIY Replacement Parts USB Encoder to PC Joystick and Buttons (Arcade kit)
Description :

Each encoder can support one joystick. Use them to DIY your own Arcade game machine. The Zero Delay USB Arcade Encoder is a fully compatible plug and play solution, simply plug in your joystick and buttons into the encoder, plug the USB cable into the Pi, map your buttons in RetroPi and away you go - it really is that easy! You can use multiple encoders at the same time, so they're great for multiplayer arcade machines!
 
Specifications :

Joystick Size: Approx. 95x60x100mm
Encoder Board Size: Approx. 85x35mm
USB Cable Length: Approx. 1.8m
Colour: Red

We have tested this unit on Raspberry Pi using Retropie and a Windows 7 PC using MAME.
 
Package includes :

1 x Encoder Board
1 x USB Cable
1 x 5 pin Cable for Joystick
1 x 5 Pin Joystick
8 x 30mm Push Buttons
2 x 24mm Push Buttons
13 x Cables for Buttons

Get Retropie on the Raspberry Pi
ModMyPi setup guide
R449.90  Inc VAT
Arcade Kit DIY Replacement Parts USB Encoder to PC Joystick and Buttons ( BLUE) (Arcade kit BLUE)
Description :

Each encoder can support one joystick. Use them to DIY your own Arcade game machine. The Zero Delay USB Arcade Encoder is a fully compatible plug and play solution, simply plug in your joystick and buttons into the encoder, plug the USB cable into the Pi, map your buttons in RetroPi and away you go - it really is that easy! You can use multiple encoders at the same time, so they're great for multiplayer arcade machines!
 
Specifications :

Joystick Size: Approx. 95x60x100mm
Encoder Board Size: Approx. 85x35mm
USB Cable Length: Approx. 1.8m
Colour: Blue

We have tested this unit on Raspberry Pi using Retropie and a Windows 7 PC using MAME.
 
Package includes :

1 x Encoder Board
1 x USB Cable
1 x 5 pin Cable for Joystick
1 x 5 Pin Joystick
8 x 30mm Push Buttons
2 x 24mm Push Buttons
13 x Cables for Buttons

Get Retropie on the Raspberry Pi
ModMyPi setup guide
R449.90  Inc VAT
1N4001 Rectifier Diode 50V 1A (10 pack) (1N4001 Diode 1A(10))
Please note: Pic is for illustration purposes only
Description:

The 1N400x (or 1N4001 or 1N4000) series is a family of popular one-ampere general-purpose silicon rectifier diodes commonly used in AC adapters for common household appliances. Its blocking voltage varies from 50 volts (1N4001) to 1000 volts (1N4007). 

Specifications:

  • Average forward current is 1A.
  • Non-repetitive peak current is 30A.
  • Reverse current is 5uA.
  • RMS reverse voltage is 35V.
  • Peak repetitive Reverse voltage is 50V.
  • DO-41 Package.

What's in the box?:

10 x diodes

Resources:

Intoduction
Basics, Types, Characteristics, Applications & Packages
R9.90  Inc VAT
Resistors (4.7K Ohm 5%) (10 pack) (Resistor 4.7K(4K7))
Description:

These are carbon film axial leaded through hole type and can handle up to 1/4W of power.  1/4W resistors are the most commonly used size for breadboarding, electronics and most common types of hobby projects.

Specifications:

  • Power:  up to 1/4W
  • Material:  carbon film 
  • Lead diameter:  0.55 mm
  • Tolerance : 5%
  • Operating Temp :  -55C – 155C

What's in the box:

10 x 4.7k ohm resistors

Resources:

Resistors basics
Types of Resistors
Resistor colour codes
R4.90  Inc VAT
Raspberry Pi Camera Board Replacement Cable 500mm (Cam cable 500mm)
Description:

The Raspberry Pi Camera Module comes fully assembled with a 15-Way 500mm flat, flex cable that plugs directly in the Raspberry Pi CSI port. Unfortunately the included cable is quite fragile, and can break if twisted or bent too far.
 
Don't worry though, not all is lost if that cable does happen to break! Replacement raspberry pi camera board cables are available and it's very easy to swap them over!
 
This replacement cable is 500mm long.
 
The Raspberry Pi Camera Board Replacement Cable Features:
  • Direct Replacement for the Raspberry Pi Camera Board Cable
  • 500mm Overall Length
  • 1mm Pitch
  • 15 Way Flat Cable
  • Conductor: Tin plated copper
  • Insulation: White PVC
  • Supporting tape: Blue polyester
  • UL rating: UL2896
  • Temperature rating: 80°C
  • Voltage: 30V
  • Flame test: VW-1, FT1, FT2
  • CSA Standard: CAN/CSA-22.2 No.210.2 
R29.90  Inc VAT
FR-4 Double Side Prototype PCB Printed Circuit Board kit (prototype board kit)
Description:

Standard Prototype PCB is great for prototyping and building circuits but it can be time consuming to use with components with certain pin configurations such as IC's.

These boards are especially useful for preserving a prototype or experiment you just created on a solderless breadboard by soldering all the pieces in place.

Specifications:

Grid : 0.1" (2.54mm)
Thickness : 1.6mm(5pcs)
Hole diameter : about 1mm
Material : FR-4 (glass fiber)
All holes are plated through
Both sides are identical
 
Dimensions                           Hole(column x  row)   
50 x 70mm, 1.97" x 2.76"      24 x 18                          
40 x 60mm, 1.57" x 2.36"      20 x 14                          
30 x 70mm, 1.18 x 2.76"        24 x 10                          
20 x 80mm, 0.79" x 3.15"      28 x 6                            
 
Package Includes:
 
4 x FR-4 Double Side Prototype PCB Printed Circuit Board

Resources:
Introduction to soldering
Video: How to solder properly
The secrets to good soldering
R24.90  Inc VAT
TEC1-12715 12V Peltier Plate Module (Peltier 12V 40x40)
Description:

Thermoelectric coolers (TEC or Peltier) create a temperature differential on each side. One side gets hot and the other side gets cool. Therefore, they can be used to either warm something up or cool something down, depending on which side you use. You can also take advantage of a temperature differential to generate electricity.

This Peltier works very well as long as you remove the heat from the hot side. After turning on the device, the hot side will heat quickly, the cold side will cool quickly. If you do not remove the heat from the hot side (with a heat sink or other device), the Peltier will quickly reach stasis and do nothing. We recommend using an old computer CPU heatsink or other block of metal to pull heat from the hot side. We were able to use a computer power supply and CPU heatsink to make the cold side so uncomfortably cold we could not hold our finger to it.

Note: It is imperative that a heat sink is used on the hot side of the module. Running the module without one can cause damage to this part. If it’s too hot to comfortably touch, you’re in the danger zone!

Specifications:

Model: TEC1-12715
Color: white
Couples: 127
Voltage: 12V
Umax: 15.4V
Imax: 15A
Max power consumption: 231W
Tmax: 70°C
Qcmax △T=0(W): 137W
Size: 40 x 40 x 3.3mm
Weight: 50g

Documents:



Package includes:

  1 x cooler plate module(40mm x 40mm)

R109.90  Inc VAT
100Pcs 8 Values Assorted Diode Kit (Diode kit 100pcs)
Description:

2 pin through hole rectifier diodes used for electronic projects, hobbies and repairs. Used in radios, power supplies and other devices.
 
Specifications:
 
1.Wattage: 1W
2. Diode/rectifier type: DO-41 
3. RoHS: Yes
4. Standard Recovery Power Rectifier
5. Repetitive Reverse Voltage Max, Vrrm: 50V
6. Forward Current Avg Rectified, IF(AV): 1A
7. Forward Surge Current Max, Ifsm: 30A
8. Forward Voltage Max, VF: 1.1V
9. Current Rating: 1A
10. Mode: IN5822, IN5408, IN5399, FR207, FR107, IN5819, IN4007, IN4148
 
Package includes:
 
25 x IN4148 Diodes
25 x IN4007 Diodes
10 x IN5819 Diodes
10 x IN5399 Diodes
10 x FR107 Diodes
10 x FR207 Diodes
5 x IN5408 Diodes
R54.90  Inc VAT
GPIO Breadboard Breakout Kit (GPIO breakout kit)
Description:

This bundled breakout kit made for easy connection from your Raspberry Pi GPIO to the breadboard.
The bundle is discounted to save you some hard earned cash rather than paying full price for loose components.

What's in the box?

1 x BreadBoard 400 tie points
1 x 40-Pin Gray Ribbon Cable (29cm)
1 x GPIO T Board for easy breadboard connection
R106.90  Inc VAT
RTU5024 GSM Gate Opener Relay Switch Remote Access Control Wireless Door Opener (GSM gate relay)
Description:

The GSM Gate Opener RTU5024 is a powerful GSM relay that can be used for authorized door access, controlling gates, switching of remote equipment, and car parking systems. Additionally, it can also be used in places that require you to turn on/off your system, machines, or equipment remotely with a free call from your mobile phone.
 
Specifications:
 
GSM Frequency: Quad-band 850/900/1800/1900MHz (2G)
Digital Output: NC/NO dry contact, 3A/240VAC
DC Power Supply: 9-24VDC/2A
Power Consumption: 12V Input Max.50mA/Average 25mA
SIM Card: Support 3V SIM Card
Antenna: 50Ω SMA Antenna Interface
Temperature Range: -20~ 60℃
Humidity Range: Relative Humidity 90%
Exterior Dimension: 82mm* 76mm* 27mm(L*W*H)
 
Features:
 
- Add or remove users by SMS Text command.
- The relay close or open time is programmable.
- It can be operated from anywhere, no distance limit.
- Quad-band can work in the worldwide GSM Networks.
- No need to provide a remote control or keys for different users.
- Secure, Using caller ID for identification, unknown callers are ignored.
- Up to 200 authorized phone numbers can be configured at the specified time.
- One output with relay rating 3A/240VAC for connecting the switch of the door or machines.
- Multiple applications. (gates, bollards, barriers, garage doors, shutters, and access doors or machines).
- The relay action will return an SMS confirmation to the owner or authorized call-in number, this function is editable by user.
- No call charges. the GSM GPRS Relay Switch rejects the call from authorized number then carries out the turn ON/OFF action on the first 'ring'.
 
Package Includes:
 
1 x RTU5024 GSM Gate Opener
1 x Antenna
R745.90  Inc VAT
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