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less than IR with a response
Easy integration
a receiver and a control circuit
A convenient input and output header allows additional modules to be daisy-chained
the biggest feature just takes three microcontroller IO port to drive
CR2032 Button Coin Cell 6V Lead ON/OFF Switch (1 Piece) 13 in 1 less than IR with aCompact design Holds Two CR2032 coin batteries (Black) High Quality Plastic Perfect for soldering On and Off Switch Perfect for robotic ,electronic, and restoration projects. (Batteries not included) This tiny coin cell battery holder is ideal for small portable or wearable projects. It holds two 20mm coin cells (2032 are the most popular size) in series to generate 6V nominal. (If you want only 3V, we suggest sticking a crumpled piece of tin foil in
