Arduino driving relay PoRelay8 board

Arduino driving relay | Drive multi-purpose relay board PoRelay8

Here is a practical example of Arduino driving relay boards PoRelay8. PoRelay8 board with 8 relay outputs can be connected to any Arduino device if it can communicate via the I2C protocol. If 8 relay outputs do not satisfy your demands, additional up to 9 PoRelay8 boards can be daisy-chained over CAN bus, even with … Read more

PoOptoIn

Digital optical isolator | PoOptoIn 16 channel isolation device

Here you’ll get some basic information about optical isolators, how they work, where are used, how they look like and moreover where you can buy a 16 channel optical isolation device – PoOptoIn from PoLabs. What is a digital optical isolator? Digital optical isolator (also called an optocoupler, photocoupler) is an electronic component that transfers … Read more

Raspberry Pi data logger

Raspberry Pi data logger with PoKeys as a data acquirer

Versatility of PoKeys device makes it well suited as a component of an environment monitoring system. PoKeys device functions as a data acquisition point, as many different sensors can be easily connected to it. Acquired data can we store directly with PoKeys software logger or send to local, for example Raspberry Pi, data logger or … Read more

Raspberry Pi Relay module

Relay module for Raspberry Pi PoRelay8 – Part 2 (CAN bus)

First part of this blog Raspberry Pi relay module PoRelay8 – Part1 was about connecting and controlling single PoRelay8 board with Raspberry Pi. Relay board and Raspberry Pi were communicating over I2C bus. Setup in this example has two limitations.  First, I2C bus was developed for communication between devices on same PCB and can be … Read more

Raspbery Pi relay modul

Raspberry Pi relay module PoRelay8 – Part 1

In this blog we will describe Raspberry Pi relay module example with PoRelay8. CAN relay board PoRelay8 features 8 relay outputs configured over I2C bus. Up to 10 boards can be daisy-chained over the CAN bus for up to 80 additional outputs. In previous blog (Using PoRelay8 with PoKeys and long cables) we wrote about … Read more

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