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Our own design with the WCH Risc-V CH32V003 - F4U6

2 user programmable LEDs
10 pin LinkE header

SN74HC138N

• 3 to 8 line demultiplexer
• expand 3 GPIO pins to 8 pins
• DIP-16 through Hole (N package)

Due to the low cost and weight of this item shipping must be calculated at checkout.

16V Electrolytic Capacitors
Tolerance: +/-20%
Operating Temperature Range: -40deg/C ~105+deg/C

50V Ceramic Disc Capacitors
Tolerance: +/-20%
Operating Temperature Range: -40deg/C ~105+deg/C

50V Ceramic Disc Capacitors
Tolerance: +/-20%
Operating Temperature Range: -40deg/C ~105+deg/C

25V Electrolytic Capacitors
Tolerance: +/-20%
Operating Temperature Range: -40deg/C ~105+deg/C

30V Ceramic Disc Capacitors
Tolerance: +/-20%
Operating Temperature Range: -40deg/C ~105+deg/C

Transparent Acrylic Enclosure for Arduino UNO

50V Electrolytic Capacitors
Tolerance: +/-20%
Operating Temperature Range: -40deg/C ~105+deg/C

50V Electrolytic Capacitors
Tolerance: +/-20%
Operating Temperature Range: -40deg/C ~105+deg/C

RaspBerry Pi3 B+ Acrylic Case

Optional  Fan and/or HeatSink

EU1640 16mm WaterProof UltraSonic Transducer Note: these transducers are not designed to work underwater - they are for use in air but can withstand outdoor use. discrete Transmitter or Receiver or Pair