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R137.49  Inc VAT
R199.90
R76.30  Inc VAT
R99.90
Take control of and monitor your world with our ultimate jack-of-all-trades Raspberry Pi HAT!
R639.90  Inc VAT
The MonkMakes Relay for micro:bit is a solid-state (no moving parts) relay that allows an output of a micro:bit to turn things on and off.
R169.90  Inc VAT
R269.90  Inc VAT
R159.90  Inc VAT
DC12V Water Level Controller Sensor Module (12V relay level sensor)
Description:

The unit is small and compact, requires only simple wiring. It boasts low power consumption and high switching capacity. And has several functional stability characteristics.

Specifications:

Type: water level sensor module
Power supply current: 20mA
Power supply voltage: DC12V
Power: 20W

Wiring

N  Neutral in
L   12V in

N  Neutral out
L2 12V out

What's in the box

1 x water level sensor module
R459.90  Inc VAT
Eight channel 5V DC Relay Module (8 channel relay)
Description:

This is an eight channel 5V DC relay module with active low. It can be controlled by variety of microcontrollers such as Arduino, Raspberry Pi, PIC, DSP, AVR or ARM etc.

  • Has the ability to control eight separate appliances or pieces of equipment
  • Eight on-board optoisolators enable direct interfacing to microcontrollers
  • Eight red LED status lights on-board show relay activity
  • Widely used in PLC control or smart home control
  • 4 x M3 mounting holes for easy fixing via standoffs
Specifications:
  • 15-20mA drive current needed per channel
  • Relay coil maximum operating voltage: 5V
  • Relay coil maximum current: 89.3mA
  • Relay contact maximum: AC250V at 10A or DC30V at 10A
  • No. of relays/channels: 8
  • Item size: 134 x 55 x 20mm
  • Item weight: 116g
Contents:
  • 1 x 8 Channel Relay Module
Resources:

Warning
Exercise proper caution when connecting mains driven equipment or appliances to relay module as lethal current will be present.

R129.90  Inc VAT
Four channel 5V DC Relay Module (4 channel relay)
Description:

Use this relay board with your Arduino, Raspberry Pi or your custom micro-controller projects!

Specifications:
  • Each Relay has LED indication when ON
  • SPDT Relays with terminal block outputs.
  • Relay Coil voltage: 5 VDC
  • Power Requirement: 5 VDC
  • 10A 250V AC / 10A 30V DC
Contents:
  • 1 x Four channel 5V DC Relay Module
Resources:
R74.90  Inc VAT
Two Channel 5V DC Relay Module (2 channel relay)
Description:

This is a two channel 5V DC relay module with active low. It can be controlled by variety of microcontrollers such as Arduino, Raspberry Pi, PIC, DSP, AVR or ARM etc.

  • Has the ability to control two separate appliances or pieces of equipment
  • Two on-board optoisolators enable direct interfacing to microcontrollers.
  • Two red LED status lights on-board show relay activity.
  • Widely used in PLC control or smart home control
  • 4 x M3 mounting holes for easy fixing via standoffs
Specifications:
  • 15-20mA drive current needed per channel
  • Relay coil maximum operating voltage: 5V
  • Relay coil maximum current: 89.3mA
  • Relay contact maximum:  AC250V at 10A or DC30V at 10A
  • No. of relays/channels: 2
  • Item size: 57 x 55 x 20mm
  • Item weight: 57g
Contents:
  • 1 x 2 Channel Relay Module
Resources:

 

Warning
Exercise proper caution when connecting mains driven equipment or appliances to relay module as lethal current will be present.

R48.90  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
R699.90  Inc VAT
Four Way Solid State Relay Module (solid relay 4 red)
Description:

The four-channel relay module contains four 5V relays and the associated switching and isolating components, which makes interfacing with a microcontroller or sensor easy with minimum components and connections.

A solid state relay (SSR) is an electronic switching device that switches on or off when an external voltage (AC or DC) is applied across its control terminals. It serves the same function as an electromechanical relay, but has no moving parts and therefore results in a longer operational lifetime.

Specifications:

5V Omron solid state relays 240V / 2A, output with resistive fuse 240V / 2A.
Dimensions: 57x55x25 (length x width x height)
Input Power: 5VDC
Control signal input voltage: (0-2.5V low state relay ON) (3-5V state high relay OFF)

Features:

Voltage:5V
Quiescent current: 0 mA
Operating current: 12.5mA
Trigger Voltage: 3.3-5V
Trigger current: 2mA

DC : positive power supply (according to the relay voltage supply)
DC-: negative power supply
CH1: relay module signal triggering end (high to trigger active)
CH2: relay module signal triggering end (high to trigger active)
CH3: relay module signal triggering end (high to trigger active)
CH4: relay module signal triggering end (high to trigger active)

Package includes:

1 x Four way Solid State Relay Module

Python Code
R137.49  Inc VAT
R199.90
One way Solid State Relay Module (Solid state relay single)
Description:
The one-channel relay module contains four 5V relays and the associated switching and isolating components, which makes interfacing with a microcontroller or sensor easy with minimum components and connections.

A solid state relay (SSR) is an electronic switching device that switches on or off when an external voltage (AC or DC) is applied across its control terminals. It serves the same function as an electromechanical relay, but has no moving parts and therefore results in a longer operational lifetime.


5V Omron solid state relays 240V / 2A, output with resistive fuse 240V / 2A.
Dimensions: 25x34x25 (length x width x height)
Input Power: 5VDC
Control signal input voltage: (0-2.5V low state relay ON) (3-5V state high relay OFF)

Feature:

Voltage:5V
Quiescent current: 0 mA
Operating current: 12.5mA
Trigger Voltage: 3.3-5V
Trigger current: 2mA
DC : positive power supply (according to the relay voltage supply)
DC-: negative power supply
CH1: relay module signal triggering end (low to trigger active)

Package included:

1 x One way Solid State Relay Module

Relay tutorial for Raspberry Pi
R76.30  Inc VAT
R99.90
Geekcreit® 12V 4CH Channel 433Mhz Wireless Remote Control Switch With 2 Remote transmitters (2 remote 4 relay)
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. 4 Relays 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:

1. It covers application ranging from simple domestic remote control to autonomous control, like auto door, window, lifting equipment, entrance access, up and down controller, alarm system industrial control and security etc.
2. These remote controls are designed to control a wide variety of electronic devices with a wireless signal.
3. Extremely easy to set up and use.
4. Compatible with 2262 / 2260 / 1527 / 2240 etc chip and several code wireless remote control. So it can meet someone's need of choosing the wireless remote control as they like to work with it .

Instructions:

1. Press the learning code, the indicator flash, loosen your finger, press any button of the remote control, the indicator flash 2 times and off, it means you learn it successfully .
2. It can learn more than 12 PCS 2262 or 1527 chip with the different code wireless remote control.
3. remove/clean: press the learning button about 8 seconds , the indicator turn on to off, it means the information that you keep have been removed successfully.

Output working way:

1. Self-lock: connect the JP1 with the cutting out cap.
2. Jog: the cutting-out cap is non-occupation, JP1 and JP2 do not connect either.
3. Inter-lock: Connect the Jp2 with the Cutting out cap,
Jog: press one button is ON, loosen your finger on the same button is OFF (need one channel switch and one buttons remote control).
Self -lock: press one button for one time is ON, press the same button again is OFF (need one channel switch and one buttons remote control).
Inter-lock: press one button is ON, press another button is OFF (need one channel switch and 2 buttons remote control).

Receiver:

1. Working voltage: DC12V
2. Quiescent condition: Less than 6mA
3. Working temperature: -40°c 80°c
4. Receiver sensitivity: more than -105dBm
5. Working frequency: 433mhz
6. Output voltage: DC and AC is optional
7. Output current: Less than 3A
8. Max load current: 10A
9. Dimensions: 72 x 52 x 26mm
 
Remote control transmitter:


1. Remote Distance: 200M
2. Operating Voltage: DC 12V
3. Frequency: 433mhz
4. Operating Current: 13 mAh
5. Code Type: Fixed code / Learning code
6. Dimensions: 58 x 39 x 14mm

Relay ratings:

DC 14V 20A or AC 125V 20A

Package included:

2 x Transimitter
1 x Receiver
R369.90  Inc VAT
WS Waveshare RPi 3xRelay Board (WS 3 relay board)
Please note: Raspberry Pi not included

Description:

The RPi Relay Board gives your Pi the ability to control high voltage/high current devices, easily makes normal home appliances become intelligent.

RPi Relay Board Features
  • Supports Raspberry Pi A /B /2B/3B
  • High quality relays, loads up to 250VAC/5A, 30VDC/5A
  • Photo coupling isolation, prevent interference from high voltage circuit
  • Onboard LEDs for indicating relays status
  • Relay control jumper, allows to control the relays by custom pins other than the default pins
  • Comes with development resources, including examples in wiringPi, WebioPi, shell, python, and bcm2835

What's on the RPi Relay Board


  1. Raspberry Pi GPIO interface: for connecting Raspberry Pi
  2. Relay screw terminal: for connecting target devices
  3. Relays
  4. Photocoupler: PC817
  5. Relay indicator
    • LED on: relay NC is opened, NO is closed
    • LED off: relay NC is closed, NO is opened
  6. Power indicator
  7. Relay control jumper
    • short the jumper: control the relays by default I/Os used in the example code
    • open the jumper: control the relays by custom I/Os through jumper wires

Development Resources

Wiki : www.waveshare.com/wiki/RPi_Relay_Board

Package Includes:

  1. RPi Relay Board x 1
  2. RPi screws pack (2pcs) x 1
R269.90  Inc VAT
Automation HAT (Automation HAT)
Description:

Take control of and monitor your world with our ultimate jack-of-all-trades Raspberry Pi HAT!

We've pulled together a great set of features into this home monitoring and automation controller. With relays, analog channels, powered outputs, and buffered inputs (all 24V tolerant) you can now hook up a plethora of goodies to your Raspberry Pi all at once.

Better still each channel has an indicator LEDs which means at a glance you can see what's happening with your setup. Even the analog channels have dimming LEDs that allow you to see the value they are currently sensing - swish!

Ideal for smart home and automation projects, giving your greenhouse intelligent sprinklers, or scheduling your fish feeding!

Features

  • 3 x 24V @ 2A relays (NC and NO terminals)
  • 3 x 12-bit ADC @ 0-24V
  • 3 x 24V tolerant buffered inputs
  • 3 x 24V tolerant sinking outputs
  • 15 x channel indicator LEDs
  • 1 x 12-bit ADC @ 0-3.3V
  • 3.5mm screw terminals
  • Power, Comms, and Warn! LED indicators
  • SPI, TX (#14), RX (#15), #25 pins broken out
  • Compatible with Raspberry Pi 3, 2, B , A , Zero, and Zero W
  • Python library
  • Comes fully assembled (broken out pins require soldering)

Software

As ever, we've made a super-simple to use Python library to take advantage of Automation HAT's multitudinous functions, with examples to get you started.

Our input, output and relay examples show you how to read the analog and digital inputs, switch the outputs on and off, and control the relays.

Notes

  • We recommend you use a set of brass M2.5 standoffs with Automation HAT to avoid pins contacting the HDMI port if the HAT is pushed down
  • Loads for the buffered outputs should be switched on the ground side, i.e. 12/24V (from supply) -> load -> output terminal -> ground (from supply)
  • The relays can tolerate up to 2A each and should be switched on the high side
Take control of and monitor your world with our ultimate jack-of-all-trades Raspberry Pi HAT!
R639.90  Inc VAT
Relay for micro:bit (micro:bit Relay board)

Description:

The MonkMakes Relay for micro:bit is a solid-state (no moving parts) relay that allows an output of a micro:bit to turn things on and off.

A micro:bit can turn an LED on and off directly, but anything more powerful requires something like a relay or a transistor. Using a transistor to switch something on and off requires a shared ground connection with the micro:bit and a knowledge electronics that you or your students may not be ready for. The MonkMakes Relay for micro:bit is much easier to use, acting like a simple micro:bit controlled switch.

This relay can be used to switch low voltage devices such as light bulbs, a motor, a small heating element or even a string of 12V LED lighting. The voltage needs to be kept under 16V, but the relay will automatically protect itself against too much current.

FEATURES

  • Solid-sate relay (up to 2 Amps)
  • Active LED indicator
  • Resettable ‘polyfuse’ to protect against over-current

Getting Started

Connecting your micro:bit

The Relay requires just two connections to the micro:bit. One to GND (ground) and one to whatever pin is to be used to control the relay’s switching action.

When attaching the alligator clips to the micro:bit, make sure that the clips are perpendicular to the board so that they are not touching any of the neighbouring connectors on the micro:Bit edge connector.

Here’s an example of how you could wire up a MonkMakes Relay for micro:bit to turn an old fashioned light bulb on and off.

HEX File

The quickest way to try out your relay is to DOWNLOAD THIS HEX FILE >and then copy it onto your micro:bit. The program will turn the relay on and off once a second.

JavaScript Blocks Editor

Set the controlling pin to 1 and the relay contacts will close, set it to 0 and the contacts will open again. Its as simple as that. So, to make your relay turn on and off once a second, open the Blocks Editor, add a forever block and then the digital write blocks from the pins category and the pauses from the basic category.

MicroPython

Paste the following code into the Python window and then Download the file and copy it onto your your micro:bit.

from microbit import *

while True:
    pin0.write_digital(True)
    sleep(500)
    pin0.write_digital(False)
    sleep(500)



Analog Outputs

The latest MonkMakes Relay for micro:bit can do more than just switch things on and off. It can also be used with micro:bit analog outputs. Look closely at your Relay for micro:bit and is it has the version number v1ev (under the word ‘Board’) then it can be used with the ‘analog write’ block in the blocks editor or the ‘write_analog’ function in MicroPython. If your board has the version number v1e then it is not suitable for use with analog outputs – sorry you were unlucky to get one of the small batch of first boards to be sold.

The output of the Relay for micro:bit is not linear at low PWM and high PWM values as the following chart illustrates.

The y-axis shows the current in mA for a test load resistor supplied from a constant voltage source. The x-axis is the analog write value (0 to 1023). As you can see, there is a dead zone up to a analog output value of about 100, followed by a relatively good linear region right up to about 1000, after which the output effectively becomes ‘on’.

The tests were carried out at the default PWM frequency of 50Hz for the micro:bit. Lower frequency PWM is expected to produce more linear results.

The MonkMakes Relay for micro:bit is a solid-state (no moving parts) relay that allows an output of a micro:bit to turn things on and off.
R169.90  Inc VAT
5V 1 Channel Level Trigger Optocoupler Relay Module (single relay red board)
Description:

The module uses a quality relay with a normally open interface
Using SMD optocoupler isolation, driving ability, stable performance
The module can be set high or low with a jumper setting trigger
Fault-tolerant design, even if the control line is broken, the relay will not operate
A power indicator (green) and a relay status indicator (red)

Specification:

- Maximum load: AC 250V/10A, DC 30V/10A
- Trigger current: 5mA
- Working voltage: 5V
- Module size: 50mm x 26mm x 18.5mm (L x W x H)
Four mounting bolt holes, diameter 3.1mm

Module interface:

DC : positive power supply (VCC)
DC-: negative power supply (GND)
IN: can be high or low level to control the relay

Relay outputs:

NO: normally open
COM: Common Interface
NC: normally closed

High and low level trigger options:

It is low level trigger when jumper connects to LOW pin
It is high level trigger when jumper connects to HIGH pin

What's in the box:

1 x 1 Channel H/L level trigger optocoupler relay module

Interfacing with a relay
R29.90  Inc VAT
Mini 5V DC Power Relay SRU-05V 5 Pin PCB Type (pcb relay blue single)
Description:

Non-Latching relay can be used in a number of applications including home equipment, vending machines and OA equipment. The miniature relay is often referred to as the “ice cube” relay due to the relays size and shape. Pre-soldered terminals, high switching power up to 10 A, PCB terminals and flux protection are among many of the included benefits of this relay.

Features:

Simple relay magnetic circuit to meet low cost of mass production

Specifications:

Model: SRD-5VDC-SL-C
Coil voltage: DC 5V
Coil resistance: 70Ω ~ 80Ω
Contact resistance: 100Ω Max
Operation time: 10msec Max
Release time: 5msec Max
Ambient temperature: -25°C to 70°C
Operating humidity: 45 to 85%RH
Operating current: 43mA ~ 46mA
Release current: 15mA ~ 18mA
Pin: 5Pin
Insulation resistance: ≥100M (Ohm)
Dielectric strength:
Between coil & contacts: AC 1500V 50HZ ~ 60HZ/min
Between contacts: AC 1000V 50HZ ~ 60HZ/min
Rated load:: 10A 250V AC / 10A 125V AC / 10A 30V DC / 10A 28V DC
Size: 1.8 x 1.5 x 1.6cm (L x W x H)


Package includes:

1 x SRD-5VDC-SL-C 5V Power Relay
R9.90  Inc VAT
Raspberry Pi 8-channel Relay Expansion Board with DIN rail mounting brackets (DIN rail relay board)
Please note: Raspberry Pi is not included

Overview

The RPi Relay Board (B) is an expansion board with 8-ch relays for Raspberry Pi. It gives your Pi the ability to control high voltage products such as home appliances.

Features
  • Supports Raspberry Pi A /B /2B/3B/3B /4B
  • High quality relays, loads up to 5A 250V AC or 5A 30V DC
  • Photo coupling isolation, prevent interference from high voltage circuit
  • Standard rail mount bottom case
  • Onboard LEDs for indicating relays status
  • Relay control pin selection jumper, allows to control the relays by custom pins other than the default pins
  • Reserved control Interface, allows to work with controllers like PLC
  • Comes with development resources, including examples in wiringPi, bcm2835, python, python-bottle (webpage control), and crontab (cron job)
Specifications
  • Power supply voltage: 5V
  • Trigger signal: 3.3V/5V
  • Relay channels: 8-ch
  • Contact form: SPDT-NO,NC
  • Closed current: 6mA (per channel)
  • Connector: screw terminal block
  • Dimension: 232 × 72 (mm)
  • Mounting hole size: 3.0mm
Dimensions

Development Resources

Wiki : www.waveshare.com/wiki/RPi_Relay_Board_(B)

R359.90  Inc VAT
Soil Moisture Sensor 12V DC Relay Control Module Automatic watering switch (automatic water relay sensor)
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
R74.90  Inc VAT
Solid State Relay SSR-50DA 3-32VDC 50A/250V Output 24-380VAC w/ Cover (3-32V relay solid state)
Specification:
Size62mm(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.
R147.90  Inc VAT
DC 12V PIR IR Sensor Module Relay (12VDC pir relay occupancy)
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
R119.90  Inc VAT
automation:bit (automation:bit)
Description:

Control and monitor your world with automation:bit! It's tolerant of up to 24V, with analog and digital inputs, outputs, and a relay, so it's ideal for automating low-voltage systems in your home.

Just slot in your micro:bit, then code automation:bit with the block-based Microsoft MakeCode editor. Hook up buttons to the inputs, use the built-in buttons on micro:bit, or the light-sensing capability of the LED matrix to control devices connected to automation:bit. Or why not use a second micro:bit's radio function as a remote control?

WARNING! automation:bit should not be used with voltages greater than 24V and especially not with mains voltages!


Features
  • Comes fully-assembled and ready to use
  • 1 x 24V @ 2A relay (NC and NO terminals)
  • 3 x ADC channels (0-24V range)
  • 3 x 24V tolerant buffered inputs
  • 3 x 24V tolerant sinking outputs
  • 3.5mm screw terminals
  • Compatible with micro:bit
  • Microsoft MakeCode support
  • No soldering required!
Software 

You can code automation:bit with the block-based Microsoft MakeCode editor, that'll get you started with using all of automation:bit's functionality.

To add the automation:bit library in MakeCode, click on the cog at the top right hand corner, then "Add Package", then enter the URL "https://github.com/pimoroni/pxt-automationbit". You can find full instructions at the GitHub repository for the library.


R269.90  Inc VAT
Relay Board (KT relay kit)
Product Description

This is a versatile relay board kit that can easily be configured via jumpers and trimmer potentiometers to do a range of tasks.

Most sensor and switches can be connected to the input of the board and the trigger level set for the input device. This can be inverted if required, then there is the option to feed this straight to the relay or a timer of up to 25 minutes can be used. Irrespective of the state of the invert jumper whenever the sense LED goes from off to on the timer restarts.#

The board can run off any voltage from 4.5 to 6 volts.

The output cans switch DC or mains.

This datasheet details what the board does and how to use it along with some worked examples. A more detailed set of information including the build instructions & how to configure the kit can also be downloaded.

Click here to download the full teaching notes pdf_icon.gif

WARNING: Using mains electricity can be dangerous and should only be attempted by qualified electricians.

This kit includes:

  • 3 x 100Kohm resistors
  • 3 x 220ohm resistors
  • 1 x 47Kohm resistors
  • 1 x 1Mohmpotentiometer
  • 1 x 10Mohm potentiometer
  • 2 x 1N4001 diodes
  • 2 x 5mm red LEDs
  • 1 x 100uF capacitors, electrolytic
  • 1 x 4.7uF capacitors, electrolytic
  • 1 x 2N7000 n-channel FET
  • 2 x 2 way terminal blocks
  • 1 x 3 way terminal blocks
  • 1 x LM324 operational amplifier IC
  • 1 x 14 pin IC holder
  • 2 x 3 way pinstrip
  • 2 x Jumpers
  • 1 x Relay
  • 1 x Relay board PCB

PCB dimensions: 86.5mm x 49mm.

This kit is supplied as a pack of parts and requires soldering.

R159.90  Inc VAT
Aluminum Alloy HeatSink For Solid State Relay SSR Heat Dissipation (SSR relay heatsink)
Description:

Brand new and high quality.
New heat sink for solid state relay SSR
Aluminium alloy
Add a aluminum heat sink increase the lifespan of your SSR relay, it will help dissipate the heat and protect your relay.
Solid State Relays are ideal for automatic process control application, a must component for temperature controller and other machinery control system.

Specification:

Materail: Aluminium alloy.
Size:Roof:50mm x 60mm.Foot:80mm x 50mm.
Height:43mm.
Weight:96g
Compatible with:Designed specially for single phase solid state relay.
Color :Silver

Package includes:

1 x Solid state relay heat sink

R89.90  Inc VAT
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