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wifinina: add information about Adafruit boards with ESP32 wifi coprocessors, and modify examples to remove code that was both not being used, and also prevented many Adafruit boards from being able to be targeted by the examples

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Signed-off-by: deadprogram <ron@hybridgroup.com>
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deadprogram
2021-05-11 20:53:41 +02:00
committed by Ron Evans
parent cbcb62af01
commit 351700e48d
7 changed files with 16 additions and 39 deletions
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wifinina/README.md
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@@ -10,9 +10,9 @@ For information on how to use this driver, please take a look at the examples lo
## nina-fw Firmware
**PLEASE NOTE: New Arduino Nano33 IoT boards most likely already have a recent version of the nina-fw firmware pre-installed, so you should not need to install the firmware yourself.**
**PLEASE NOTE: New Adafruit Boards with WiFi and Arduino Nano33 IoT boards most likely already have a recent version of the nina-fw firmware pre-installed. You should not need to install the firmware yourself.**
In order to use this driver, you must have the nina-fw firmware installed on the ESP32 chip. If it is already installed, you can just use it. You do not need to flash the firmware again.
In order to use this driver, you must have the nina-fw firmware installed on the ESP32 chip. If it is already installed, you can just use it. You do not need to flash the firmware again. The following instructions are only for those who want or need to update the firmware on your board.
### Installing esptool to flash nina-fw firmware
@@ -24,7 +24,7 @@ pip install esptool
Once you have installed `esptool` you can follow the correct procedure for flashing your board.
### Updating the Arduino Nano33 IoT
### Updating nina-fw on the Arduino Nano33 IoT
In the `updater` directory we have a precompiled binary of the "passthrough" code you will need to flash first, in order to update the ESP32 co-processor on your board.
@@ -48,3 +48,9 @@ esptool --port /dev/ttyACM0 --before default_reset --baud 115200 write_flash 0 .
```
You only need to do this one time, and then the correct nina-fw firmware will be on the NINA ESP32 chip, and you can just flash the Arduino Nano33 IoT board using TinyGo.
## Updating Adafruit ESP32 WiFi Boards
Adafruit provides very good instructions for updating their boards that provide a ESP32 WiFi-BLE co-processor. For more information, please see:
https://learn.adafruit.com/upgrading-esp32-firmware