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Finished product and diagram of each interface and key:
Two power supply methods:
1.) 3 AA batteries (sold separately)
2.) External 5 VDC USB-A power supply/port
(sold separately)
Specifications:
Working voltage: DC4.5-5V
Power supply: 3 AA batteries or 5 VDC USB power
Dimension: 2.36" x 2.36" x 5.35" (60mm*60mm*136mm)
© Parts Express
®
External 5V
power supply
3 AA batteries
8
Power indicator
Power switch
Last Revised: 11/1/2021
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