Difference between revisions of "PiRelay-8"

Revision as of 05:44, 30 July 2021

PiRelay 8

The PiRelay 8 is a relay expansion board that can control up to 8 appliances/devices with photo-coupling isolation with load up to 250V AC/7 A, 30V DC/10 A, and a trigger voltage of 3.3 V. It allows users to safely control high voltages or current devices. The PiRelay 8 has enough space for the 4.3" LCD to fit comfortably, allowing the user to operate the device with ease. One of the best features on the PiRelay 8 board is the 5V / 2A USB power port. The Raspberry Pi receives power directly from the PiRelay 8 board.

The PiRelay 8 channel has 8 high-quality relays that can withstand loads up to 250 VAC/7A and 30VDC/10A. We added a safety component called the Optocoupler EL357NC in the PiRelay 8 Channel that functions as a photo coupling isolator in the circuits to ensure safe communication.

Features

Compatible with Raspberry Pi 4, 3B+, 3, 2, Zero
Relay Status indicators
Control through Android App
Comes with development resources, including examples in python
Connectivity of the Relay with Raspberry Pi
Connectivity using the stack method
Relay pins - COM, NO (Normally Open), and NC (Normally Closed) are available for each Relay.
Onboard power LED indicator
Relay control pins selection jumper
5V / 2A USB Power Port

Specifications

Channel - 8 CH
Operating Voltage - 5V
Trigger voltage - 3.3V - 5V
AC Control Voltage - 7A / 250V
DC Control Voltage - 10A / 30V
External power supply - USB / Terminal Block
Dimensions - 267.77 mm - 72.01 mm

Buy it From : [ Click Here]

Pinout

Relays	BOARD	BCM
Relay 1	37	GPIO 26
Relay 2	35	GPIO 19
Relay 3	33	GPIO 13
Relay 4	31	GPIO 6
Relay 5	29	GPIO 5
Relay 6	23	GPIO 11
Relay 7	21	GPIO 9
Relay 8	19	GPIO 10

Installation

Python

PiRelay 8 can be used with or without 4.3 inch HDMI LCD, Please follow the following methods for the installation of Pirelay 8.

Stack Raspberry Pi on 40 Pin header of PiRelay 8 board as shown below.

Now Power on PiRelay 8 board using USB or Terminal block with 5V/2A power supply, that also turns on the Raspberry Pi as well.

Make sure all four jumpers are connected.
Open Terminal and clone/download the repository by typing below command in terminal:

git clone https://github.com/sbcshop/PiRelay-8.git

Your code will be downloaded to the '/home/pi' directory. Use the 'ls' command to check the list of directories and the 'cd' command to enter the directory.

cd PiRelay-8

'test.py' is an example code for PiRelay-8. Run test file and play with PiRelay-8 by running below python command.

python3 test.py

To Run GUI of PiRelay 8, Run below command.

python3 PiRelay8_GUI.py

It will open a window with a black screen and with some buttons, you can use these buttons to control your relays.

GPIO 4 Relay Not working Fix

Click on Start button >> Preferences >> Raspberry Pi Configuration, Then click on Interfaces Tab and make sure 1-Wire is disabled.
Click on the OK button then reboot Raspberry pi.

Resources

Github

Source Code

Revision as of 05:23, 30 July 2021 (view source) Sbcshop (talk \| contribs) (→‎Python) ← Older edit		Revision as of 05:44, 30 July 2021 (view source) Sbcshop (talk \| contribs) (→‎Python) Newer edit →
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	* Stack Raspberry Pi on 40 Pin header of PiRelay 8 board as shown below.		* Stack Raspberry Pi on 40 Pin header of PiRelay 8 board as shown below.
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	* Now Power on PiRelay 8 board using USB or Terminal block with 5V/2A power supply, that also turns on the Raspberry Pi as well.		* Now Power on PiRelay 8 board using USB or Terminal block with 5V/2A power supply, that also turns on the Raspberry Pi as well.