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15 changes: 15 additions & 0 deletions README.md
Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,21 @@ This firmware uses [Espressif's IDF](https://github.com/espressif/esp-idf)
1. Load the `Tools -> SerialNINAPassthrough` example sketch on to the board
1. Use `esptool` to flash the compiled firmware

### Building with docker

As an alternative for building we can use the docker image from espressif idf, we can do that as follows:

```
docker run -v $PWD:/data espressif/idf:v3.3.1 -- sh -c 'cd /data && make'
```

You can also flash the firmware with the following snippet:

```
DEVICE=/dev/ttyACM0
docker run --device=$DEVICE -v $PWD:/data espressif/idf:v3.3.1 -- sh -c 'cd /data && make flash ESPPORT=$DEVICE'
```

## Notes
If updating the NINA firmware for an **Arduino UNO WiFi Rev. 2** or **Arduino Nano RP2040** board via [SerialNINAPassthrough](https://github.com/arduino-libraries/WiFiNINA/blob/master/examples/Tools/SerialNINAPassthrough/SerialNINAPassthrough.ino) sketch, then the `esptool` invocation needs to be changed slightly:
```diff
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