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An onboard chip NE555
2, a single-channel signal output, the output is approximately fifty percent duty cycle square wave
3, onboard adjustable resistance, adjust the output frequency can be controlled resistance
4, on-board power indicator
5, the working voltage: 5 ~ 12V
6, board size: 29 (mm) x12 (mm)
Shipping list:
NE555 pulse generator module x 10
