Standard interface, compatible with a variety of official Aduino controller
Original FT232 chip, stable performance
With power, sending, receiving indicator, working status
With 3.3V and 5V power supply options
Do ordinary USB to serial TTL module, download STC SCM

Lilypad Coin Cell Battery Holder CR2032
9V Battery Snap Clip (Side Wires)
3x1.5V AAA Battery Case Holder with Cover 








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