Gadget Reboot
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Description
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.
Code
Arduino Uno Sketch
https://github.com/GadgetReboot/Relay_Solenoid_Driver
Schematic and Layout
Schematic and KiCAD files
https://github.com/GadgetReboot/Relay_Solenoid_Driver
Apr 11,2022
3,069 views
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.
3069
5
4
Published: Apr 11,2022
Download Gerber file 41
BOM(Bill of materials)
PCBWay Donate 10% cost To Author
File Last Updated: 2024/05/13 (GMT+8)
File update record
2024-05-1311:39:07
Parts List (BOM) is updated.
Only PCB
PCB+Assembly
*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.
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