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espat: add firmware install info for Arduino Nano33 IoT NINA-W102 chip

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Signed-off-by: Ron Evans <ron@hybridgroup.com>
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Ron Evans
2019-07-16 12:12:53 -07:00
parent 50633f3e86
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espat/README.md
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@@ -8,6 +8,19 @@ The way this driver works is by using the UART interface to communicate with the
In order to use this driver, you must have the ESP-AT firmware installed on the ESP8266/ESP32 chip.
### Installing on Arduino Nano33 IoT
In order to install the needed firmware on the Arduino Nano33 IoT board's built-in NINA W102 chip, you will need to use the `arduino-nano33-iot` branch of this fork of the firmware:
https://github.com/hybridgroup/esp32-at
To flash this firmware on the Arduino Nano33 IoT you will need to follow the following procedure:
- Using the normal Arduino software, load the `SerialNINAPassthrough` sketch on to the board.
- Flash the NINA 102 firmware using the `make flash` command in the https://github.com/hybridgroup/esp32-at repo.
You only need to do this one time, and then the correct ESP-AT firmware will be on the NINA chip, and you can just flash the Arduino Nano33 IoT board using TinyGo. We should be able to remove some of these step in a future release of this software.
### Installing on ESP32
The official repository for the ESP-AT for the ESP32 processor is located here: