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passthru for burning ESP32 firmware via esptool on desktop

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ladyada 2019-03-16 01:53:06 -04:00
parent 7dcca467ef
commit b8dee95e9e
3 changed files with 52 additions and 0 deletions
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Adafruit_ESP32_Arduino_Demos/SerialESPPassthrough/Metro M4 WiFi ESP32 Passthru.UF2 Normal file
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Adafruit_ESP32_Arduino_Demos/SerialESPPassthrough/PyPortal ESP32 Passthru.UF2 Normal file
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Adafruit_ESP32_Arduino_Demos/SerialESPPassthrough/SerialESPPassthrough.ino Normal file
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/*
SerialNINAPassthrough - Use esptool to flash the ESP32 module
For use with PyPortal, Metro M4 WiFi...
Copyright (c) 2018 Arduino SA. All rights reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
unsigned long baud = 115200;
void setup() {
Serial.begin(baud);
SerialNina.begin(baud);
pinMode(13, OUTPUT);
pinMode(ESP32_GPIO0, OUTPUT);
pinMode(ESP32_RESETN, OUTPUT);
// manually put the ESP32 in upload mode
digitalWrite(ESP32_GPIO0, LOW);
digitalWrite(ESP32_RESETN, LOW);
delay(100);
digitalWrite(ESP32_RESETN, HIGH);
}
void loop() {
if (Serial.available()) {
digitalWrite(13, HIGH);
SerialESP32.write(Serial.read());
digitalWrite(13, LOW);
}
if (SerialESP32.available()) {
Serial.write(SerialESP32.read());
}
}