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

Weight 0.015 kg


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