Features 5V relay can be used as a microcontroller development board module can be used as a home appliance control 5 V-5v TTL control signals control DC or AC signal can control the 220V AC load the increase in transistor drive a relay coil, control pins high impedance the control pins with pull-down circuit, prevent...
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Package Includes:
The module is triggered, high trigger current less than 5mA, part of the 51 single-chip IO port output capability is weak, pull or increase the drive capability of the circuit.
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