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Description:

This is split-core current transformer is an AC current sensor. It is used for current measurement, monitor and protection for AC motors, lighting equipment, air compressors, home automation etc.

Features:

- Opening size: 13x13mm
- Rated input current (RMS): 10% - 120% of that is 3A - 36A
- Output voltage(RMS): linear output. When the input current is 30A, the output voltage is 1V
- Linearity: ± 3%
- Output connectors: 3.5mm standard three-pin plug
- Lead length: 1 m

What's in the box?

1 x Current sensor


This sensor is perfect for use with our Raspberry Pi RPICT3T1 current and temperature sensor board.

Features:

- Using the ITR20001 Reflective Photoelectric Sensor
- Five ITR20001/T infrared light detectors are used with higher sensitivity, wider detection range and anti-interference.
- Five-channel analog output, higher accuracy, so that the tracking range of the car is wide and stable

Connection Reference:

VCC: Connect 3.3~5V
GND: Connect GND
U1: Connect MCU.IO(Channel, analog output)
U2: Connect MCU.IO(Channel, analog output)
U3: Connect MCU.IO(Channel, analog output)
U4: Connect MCU.IO(Channel, analog output)
U5: Connect MCU.IO(Channel, analog output)

Specifications:

Description:

When the soil moisture is lower than preferred setting, the relay will automatically pull in, start the sprinkler, water pump etc. until the moister reaches the desired humidity level and automatically stop.
Product use: Through the potentiometer, adjust to the desired soil moisture level

Specifications:

Electrical parameters: Supply voltage: 12VDC
Input current: more than 100mA Relay Load Max: 10A 250V AC or 10A 30V DC

Module instruction:

1 sensors applied to the detection of soil moisture; Module
2. Blue potentiometer is used to adjust soil moisture level, clockwise adjustment and control the humidity will be bigger, counterclockwise smaller; 3. Due to module delay function, adjust the humidity value, wait about 5-8 seconds, see if the the relay state changed, the green LED lamp will also have corresponding change, until adjusted to meet the requirements.


Package Includes:

1 x Soil moisture control module
1 x Soil sensor
2 x 20cm long DuPont lines

Specification:

Size	62mm(L)x44mm(W)x23mm(H)
Input Voltage (Trigger)	DC 3-32V
Output Voltage(Line)	AC 24-380V
Output Current(Line)	50 A
On Voltage	≤1V
On-Off Time	≤10ms
Off Leakage Current	≤2mA
Transparent Lid Included	Yes

Package Includes:
1 X 50A SSR-50DA Solid State Relay With Cover

Datasheet available at https://cdn.sparkfun.com/datasheets/Components/General/SSR40DA.pdf
Depending on how hard your relay works, you might want to add a heat sink to it.

Q:During continuity testing with my multimeter why does my relay on the AC side not switch on?
A: The below info was found at http://www.crydom.com/en/tech/newsletters/solid statements - bench test an ssr.pdf

A multimeter determines impedance by injecting a small amount of voltage through it's probes into the circuit being tested. It then measures the current flowing through the probes and calculates resistance. Easy enough; Resistance = Voltage / Current! However, as we just discussed above, a solid state relay’s output turns on by “stealing” a bit of voltage from the AC mains in order to supply current to the gate of the SCRs. Simply put, if the AC mains is not connected to the relay then the output cannot turn on. Since the voltage and current produced by a multimeter is not sufficient enough to turn on the SCRs, the output of a solid state relay will remain in the off state; even with the input signal applied. As a result, SSRs will sometimes fail an incoming inspection because the engineer expects to see a significant change in the output impedance when they turn on the relay.The most effective way to bench test a solid state relay is to construct a simple test circuit consisting of a DC power supply or battery (a 9Vdc battery will work fine in most cases ) and a 60W or 100W light bulb.

Description:

This Reflective IR Sensor is a simple plastic casing with two elements - an IR LED and an IR phototransistor. You can control the IR LED and turn it on to bounce IR off objects to determine their reflectivity. White & light colored stuff will bounce the light, so you can detect it.

Specifications:

Color	Black blue
Material	Plastic iron
Specification	Detecting range: 0.591" (15mm); Detecting method: Reflective; Collector Emitter Voltage: 70V; Collector Current: 100mA; Forward Current: 60mA; Output type: Phototransistor; Working temperature: -25~85'C
Features	Compact construction, sense the presence of an object by using the reflective IR beam from the object
Application	Perfect for line tracking robot car DIY project
Packing List	1 unit

What's in the box?:

1 x TCRT5000L Reflective switch

Resources:

How to use TCRT5000 switches

Description:

Are you interested in saving energy? These new Recessed PIR motion/ occupancy sensor is perfect way to start saving energy and also on your bills.

Specifications:
Voltage:AC220-240V/50Hz
Load:800W (incandescent bulbs, halogen bulbs)/200W ( energy saving lamp, fluorescent lamp, LED bulb)
Detection Angle: Ceiling Installation 360°/Wall Mounted 140°
Sensing Distance: Max 8M (24°C)  Adjustable Distance
Delay Time: 5S, 30S, 1Min, 3 Min, 5 Min, 8 Min Time Adjustable
Light Control Settings: 10 ~ 2000Lux Light Control Adjustable

Package Includes:
1 X PIR Ceiling Light Switch

Description:

Based on infrared technology, automatically control products, when someone enters switch sensing range, pir detect changes in the human body infrared spectrum, switch automatically switches the load, do not leave the sensing range (who are active), the switch will continue to be on.

Person leaves, switch off automatically load delay.

Convenient and  saves energy.

Specifications:

1. Bipolar design: three-wire connection, and the load capacity 100W

2. Automatic sensors: switch immediately turned on with delay off after you leave.

3. Relay switch: can withstand high current output, high power load.

4. Adjustable delay time: 10 seconds -350 seconds

5. Ultra Low Power: Switch own power <0.0088W/h (annual power consumption of <0.077 degrees)

6. Induction: Passive

7. Operating Voltage: DC 12V

7. Inductive mode: passive infrared pyroelectric

6. Quiescent Current: 50uA

7. Sensing Distance: 3 to 5m

8. Load Capacity: Maximum: 100W

9. Induction Angle: About 120°, 100 ° up and down

10. Load Range: Various types of DC LED lamps, load

11. Ambient Temperature: -20 to 50℃

12. Output Mode: Relay control output DC 12V high level / low level

13. Size: 45 x 30mm, PIR lens diameter: 12mm

Wiring instructions:

Red wire: Power input 12V
Black wire: Power output -12V
Yellow wire: OUT 12V power output

Package includes:

1 x DC 12V PIR IR Sensor Module Relay

Description:


The jumper cap is a small metal clip covered by plastic. It performs like a connecting bridge to short (connect) the pair of pins.
In a motherboard (or any other circuit board), a jumper is a pair of prongs that are electrical contact points set into the board or an adapter card . When you set a jumper, you place a plug on the prongs that completes a contact. In effect, the jumper acts as a switch by closing (or opening) an electrical circuit.

Specifications:

• Type: Shorting Jumper.
• Pitch: 2.54mm.
• Number of Pins: 2.
• Contact Material: Copper Alloy.
• Current Rating: 2A.
• Housing Material: Thermoplastic.
• Operating Temperature: -25°C to 105°C.

Package includes:

10 x 2.54mm jumper cap

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

Description:
 
Handy device for testing LED's. Simply plug your LED into the correct holes (all of which are marked) and push the button to see its brightness, illuminant color, etc.
Handy device for testing LED's (2-150mA)

The top row is for 2 pin LED's with currents ranging from 2mA - 30mA
The bottom row is for 4 pin LED's (piranha LED's) with currents ranging from 20mA - 150mA
 
Specifications:

Material: Plastic
Color: White
Lightweight & compact
Powered by a 9V battery (not included)

What's in the box?

1 x LED tester
Item size(L*W*H) : Approx. 80mm x 55mm x 22mm
Quantity: 1PC

Description:

Rocker Switches house a button for operation that can be pressed on either end like a seesaw to connect or disconnect an electrical circuit. They are often used as ON/OFF switches on the main power supplies for electronic devices.

Specifications:

• 250 V
• 3A
• 10mm x 15mm
  
  

Package includes:

1 x Black Mini Rocker Switch


Resources:

Python library
Introduction to Buttons and Switches
Types of buttons and switches

Description:

This internal magnet speaker is designed with aluminum shell, internal magnetic type, easy to install.
Application: mini box speakers, music player, doorbell, computer, multimedia speakers, etc.

Specifications:

Brand :   Jtron
Model:    N/A
Quantity:    1 piece
Form Color:    Copper
Material:    Plastic iron
Size:   40mm

What's in the box:

1 x speaker

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

Description:


Ultra-low standby power consumption 90uA~400uA 
Coverage up to 60 meters 
Built in PCB antenna 
Power input: 3.6V-6V DC(Can not higher than 6V) 
Size: 43mm x 15mm 
Color: Blue 
Net Weight: 4g

Package Includes:

Description

OLED displays driven by SSD1306 driver IC. SSD1306 is a CMOS OLED driver with controller for OLED dot-matrix graphic display system.
This is a popular OLED display with Portable and wearable devices becoming the new trends. 

Specifications:

Driver: SSD1306
Interface type: IIC interface
Pin definition: GND, VCC, SCL, SDA
        1:GND(OLED power supply)
         2:VCC (OLED 3.3~5V)
         3:SCL(OLED IIC Clock line)
         4:SDA(OLED IIC Cable)


What's in the box?:

1 x OLED display

Resources:

We used these instructions to get it working on Pi: https://circuitdigest.com/microcontroller-projects/ssd1306-oled-display-with-raspberry-pi

Description:

The fabulous micro speaker 8 ohm 1 watt presents a spectacular way of enjoying captivating music along with exquisite sound quality.
It is a great addition to any audio project where you need 8 ohm impedance and 1W or less of power.

What's in the box:

1 x Phone Micro speaker 1 Watt 15mm x 10mm x 4mm