1 Channel 12V Relay Module with Optocoupler Soldering Lead This module converts signals between

This module converts signals between RS232 voltage levels and TTL voltage levels

Features a built-in 32Kbit EEPROM and a 10-bit temperature sensor with 0

Learn about the basics of gears

for that you will need few essential components like Arduino

6-20V unregulated external power supply (pin 30)

1 Channel 12V Relay Module with Optocoupler Soldering Lead This module converts signals between1 Channel 12V Relay Module with Optocoupler The ADIY 1 Channel Relay Module with Optocoupler operates on a 12V power supply. This module offers bidirectional isolation and enables control of the relay pull through a choice of high or low levels, based on user requirements. It features a genuine high quality power relay, a subminiature package optocoupler, a high power high voltage transistor, and red and blue signal indicators. The module's layout