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                                            Carter Nelson

Not working using new Arduino Nano ESP32 development board

> using new Arduino Nano ESP32 board, there were errors. What were the errors?

Not working using new Arduino Nano ESP32 development board

Thanks for the compilation output. Was able to recreate this locally. The issue is with the ESP32 Board Support Package. There's an open issue about this here: https://github.com/espressif/arduino-esp32/issues/9150 I tried...

Adafruit_MCP23XXX::digitalWrite should read/modify/write the output register, not the input register

Is this issue happening with MCP23008/17 I2C and/or MCP23S08/17 SPI variants?

Adafruit_MCP23XXX::digitalWrite should read/modify/write the output register, not the input register

OK, thanks. "open drain" was mentioned, so was wondering if something like the MCP23018 variant was being used. Is there a simple sketch that can be used to demonstrate the...

Adafruit_MCP23XXX::digitalWrite should read/modify/write the output register, not the input register

Not seeing an Arduino sketch anywhere in that repo?

Adafruit_MCP23XXX::digitalWrite should read/modify/write the output register, not the input register

Is there an Arduino sketch that can be used to recreate the issue?

Adafruit_MCP23XXX::digitalWrite should read/modify/write the output register, not the input register

Thanks. That looks nice and simple enough. What's the hardware setup to go with this? Just attach LEDs to each pin?

Adafruit_MCP23XXX::digitalWrite should read/modify/write the output register, not the input register

Wired up LEDs w/ 220ohm resistors directly to a MCP23107 and the scanner sketch is running as expected. Only one LED is on a time. Does the issue some how...

Adafruit_MCP23XXX::digitalWrite should read/modify/write the output register, not the input register

How can the issue be reproduced locally for testing without a NOVA board?

Adafruit_MCP23XXX::digitalWrite should read/modify/write the output register, not the input register

Thanks for the offer, but that hopefully shouldn't be required. The MCP's are very simple. If there's an issue setting IO with this library, it should be reproducible with some...