MCU Relay Module, Intermittent Switching, STC

Description

Board Control:

• Intermittent infinite loop Countdown switch relay
• Control time by STC stc15w202s MCU, fully reprogrammable.
• Lead out serial port pins, can reflash board firmware, programming guide can see here.
• Can set 0~999 seconds (16-17 minutes) after to turn on relay. (also can program to 999 minutes or maybe hours in more complex level)
• Also can set 0~999 after to turn off relay or hold on relay.

Other Features:

• On board segment display to show timing.
• Input voltage 7-25V via 7805 linear regulator.
• On board songle SPDT relay 10A /28VDC or 240VAC.
• One relay signal led indictor, one power indicator.
• Two config buttons.
• On board jumper, set relay active voltage to 5V. Switching jumper can support other voltage relay.
• On board optical coupler, isolate relay signal.

Use guide please see on this page.

Additional information