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This peripheral contains single pole, double throw relays with 3.3V / 5V compliant coils that are driven by FET controllers with flyback diode protection. The jumpers can be configured to permit selection of SPIP control lines for relay control. Jumpers MUST BE SET prior to use. Most processor signal lines can be used to control relays (most processor resources can function as digital I/O). Up to two relay cards may be stacked per SPIP header. Not recommended for interface with signals greater than 24 Volts or 2 Amps. Flyback diodes are recommended for switching of inductive loads (i.e. motors and solenoids). Relays are a TE Connectivity type IMC01GR. The board measures just 1.25” X 1.25” with an installed height of just 0.25”.


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  • piep/boards/peripherals/relay.txt
  • Last modified: 2019/04/03 18:36
  • (external edit)