Hello sir, thanks for your efforts on this project. The SW is now rich of many features. But if you can add options for relay outputs more than 16.Then the SW and HW becomes limitless powerful. Can we expand ports using MCP23017? Again thanks for sharing. Hoping for your positive revert.
top of page
bottom of page
Expansion of the GPIO outputs using the MCP23017 has been implemented. Each chip can add 16 ports. As this chip can be set for up to 8 different I2C addresses, the total expansion capacity with 8 chips will be 16x8 = 128