ESP8266 expander simple
What is it?
Compact PCB to control up to 16 I/O by an ESP01. I/O are controlled via port expander (MCP23017) that uses I2C protocol. PCB Dimensions are 35x26x20mm. An FTDI pro…
What is it?
Compact PCB to control up to 16 I/O by an ESP01. I/O are controlled via port expander (MCP23017) that uses I2C protocol. PCB Dimensions are 35x26x20mm. An FTDI programmer is required for first time firmware loading (then you can use OTA if enabled). Please note that your firmware must support MCP23017 in order to operate the I/O.
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