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MCP23017 Based 32 Ch. Relay and Solenoid Driver with I2C Control
This is a 32 channel driver PCB intended to control relays and solenoids.
Control data is received from an I2C bus (requires a controller such as an Arduino).
Two on board MCP23017 16 bit GPIO expanders decode the data and control the loads via ULN2803 drivers.
MCP23017 Based 32 Ch. Relay and Solenoid Driver with I2C Control
Project images are for reference only. Actual production is based on the manufacturing files on the project page.
Please review the designer's notes (e.g., PCB thickness) and select the appropriate options.
PCBWay is not responsible
for issues caused by unsuitable parameter selections.
For more important ordering information, please refer to
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