Review on π Huayao 2pcs 4 Channel 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi by Chris Nastanovich
God's Worth Computers and Accessories
Good price for a relay board, I've read a few reviews where they had problems with the relay only activating when the power was off but I have one on my rc car connected with remote control and works fine.
- Very good price
- Appearance
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