Pico-Wireless is a way to connect a regular Raspberry Pi Pico / Pico-W together with an ESP32, to get wifi.
I know that the pico-w already has WiFi, but this can be used, with only the RP2040, or if multiple WiFi networks are needed..
This project is a modifyed version of the "picowireless" module from Pimoroni-Pico.
I have modifyed it to allow multiple ESP32 devices, instead of just one.
I have also made a custom version of the ESP32-NINA that is used on the ESP32.
This version can be found HERE and works with regular arduino, and should work with all ESP32 versions.
TESTED:
- ESP32
- ESP32-C3
NOT TESTED:
- ESP32-S2
- ESP32-S3
- ESP32-C6
- ESP8266
I don't have the other modules to test with, so they wil stay under "NOT TESTED" for the time being.
You can either use the pre-build version, found in the release page, and install it as shown here.
Or you can use the guide here, to build one yourself.
The firmware is a regular .uf2 firmware, that just can be uploaded to the pico.
If you don't know how to do that, just google it, or check this simple guide.
Follow this guide to connect the two modules together.
The pins might differ from ESP32 versions, as this guide is made with the ESP32-C3 in mind, I strongly recommend you read the mentioned guide to connect it correctly!
Examples can be found under "micropython/Examples"
If the ESP32 stops responding, then just call a ".reset()" to the picowireless, to force it to reset.
You can check if the ESP32 is responding by calling ".get_fw_version()"
If you reset the ESP32, then you need to connect to WiFi and re-create all sockets again.
In wireless-pico/drivers/esp32spi/esp32spi.hpp there are som definitions for "INPUT", "OUTPUT" and "INPUT_PULLUP".
These have been changed for use with the ESP32-C3 as these are different.
Check if thees give issues, or they can stay changed.
I haven't used the GPIO function of the ESP32, so I don't know.