Gadget Reboot
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Apr 11,2022
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MCP23017 Based 32 Ch. Relay and Solenoid Driver with I2C Control

Control up to 32 relays, solenoids or similar loads over I2C using MCP23017 GPIO expanders and ULN2803 drivers.
3498
6
4
Published: Apr 11,2022
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  • Interested in your product for a precision irrigation system

    Jan 29,20230 Comments
    Reply

  • Latching Solenoids utilize the electrical current pulse or internal permanent magnet material to maintain a set position without the constant application of an electrical current

    Jan 28,20230 Comments
    Reply

  • Latching Solenoids utilize the electrical current pulse or internal permanent magnet material to maintain a set position without the constant application of an electrical current

    Jan 28,20230 Comments
    Reply

  • Hello! I am VERY interested in using this design to drive 24VDC solenoids that are used as switch machines on a model railroad. I believe that this might work for such a task, however I would like to use an Arduino Nano to control/drive the board/solenoids, but need to figure a way to control the Arduino, and thus which outputs (switches) it is throwing, via discreet external switches (1 for each output). Thoughts? I can certainly elaborate on what I am trying to do.

    Aug 04,20220 Comments
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