julianschuler / mcp23s08 Goto Github PK

Hello Julian,

Thank you for your library.

Can you confirm that it is possible to use two expanders with this library by creating two instances using the constructor MCP23S08(uint8_t csPin, uint8_t deviceAddr) to define the two different CS_pins and device addresses?

Thanks

Geoff

Tested on Teensy 3.2, Arduino 1.8.13

Seems digitalWriteIO only works on 1 pin at a time. Is this correct?

if you set pin 0 high for example, and then set pin pin 4 high,
pin 0 goes low.

Only this function seems to work for setting multiple pins:
// set pin 0 and 4
expander.setOutputStates(B00010001);

First, add this to your Arduino IDE preferences...
https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json

Second, The sketch will not compile until you add...
#include <Arduino.h>
into the MCP23S08.h and MCP23S08.cpp files.

This is not strictly an issue with the library but rather a prerequisite of 'platform = espressif32' and VS Code/PlatformIO IDE.

I would like to create a new spiClass for the ESP32's HSPI spi bus and use that in the MCP23S08 library.
(The default spi bus VHSPI is used for touch display and SD (3 devices).)

Is it possible to publish this library to PlatformIO?