NE555 Pulse Frequency Duty Cycle Adjustable Module Square Wave Signal Generator Features: Size: 31mm * 22mm; Main chip: NE555; Input Voltage: 5V-15VDC. when power supply is 5V , the output current can be 15MA around;when 12V power supply, the output current can 35MA around; Input current: >=100MA Output amplitude: 4.2V V-PP to 11.4V V-PP. (Different Read more about NE555 Pulse Frequency Duty Cycle Adjustable Module Square Wave Signal Generator[…]