+

3Ch 1Hz-20kHz Duty Cycle Frequency Adjustable PWM Square Wave Pulse Generator UART RS232 RS485 Bus Modbus RTU Board

USD 2.53USD 4.02

3Ch 1Hz-20kHz Duty Cycle Frequency Adjustable PWM Square Wave Pulse Generator UART RS232 RS485 Bus Modbus RTU Board

Description
Specification
10PCS UDN2981A UDN2981 DIP18
USD 5.33USD 7.61
UDN2981A UDN2981 5pcs
USD 2.37USD 2.50
+