Review on π MakerFocus Raspberry Pi Expansion Board: 4-Channel Relay Module for Raspberry Pi 4B/3B+/3B/2B - No Programming or Programmable Options by Ryan Whatley
Works well. Easy to use. The silkscreen is wrong.
The board goes very well with the Pi 3. Relay control was very easy using the Python library. The only problem was that the silk-screened labels for the relay outputs were misplaced; NC ports have been labeled NO and vice versa.
- Product instructions can be found in the product manual and document. This Raspberry Pi expansion board supports Raspberry P
- Some cons
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