// SPDX-FileCopyrightText: 2018 Arduino SA
//
// SPDX-License-Identifier: LGPL-2.1-or-later
/*
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
*/
#include <Adafruit_NeoPixel.h>
unsigned long baud = 115200;
#if defined(ADAFRUIT_FEATHER_M4_EXPRESS) || \
defined(ADAFRUIT_FEATHER_M0_EXPRESS) || \
defined(ARDUINO_AVR_FEATHER32U4) || \
defined(ARDUINO_NRF52840_FEATHER) || \
defined(ADAFRUIT_ITSYBITSY_M0) || \
defined(ADAFRUIT_ITSYBITSY_M4_EXPRESS) || \
defined(ARDUINO_AVR_ITSYBITSY32U4_3V) || \
defined(ARDUINO_NRF52_ITSYBITSY) || \
defined(ARDUINO_PYGAMER_M4_EXPRESS)
// Configure the pins used for the ESP32 connection
#define SerialESP32 Serial1
#define SPIWIFI SPI // The SPI port
#define SPIWIFI_SS 13 // Chip select pin
#define ESP32_RESETN 12 // Reset pin
#define SPIWIFI_ACK 11 // a.k.a BUSY or READY pin
#define ESP32_GPIO0 10
#define NEOPIXEL_PIN 8
#elif defined(ARDUINO_AVR_FEATHER328P)
#define SerialESP32 Serial1
#define SPIWIFI SPI // The SPI port
#define SPIWIFI_SS 4 // Chip select pin
#define ESP32_RESETN 3 // Reset pin
#define SPIWIFI_ACK 2 // a.k.a BUSY or READY pin
#define ESP32_GPIO0 -1
#define NEOPIXEL_PIN 8
#elif defined(TEENSYDUINO)
#define SerialESP32 Serial1
#define SPIWIFI SPI // The SPI port
#define SPIWIFI_SS 5 // Chip select pin
#define ESP32_RESETN 12 //6 // Reset pin
#define SPIWIFI_ACK 9 // a.k.a BUSY or READY pin
#define ESP32_GPIO0 10 //-1
#define NEOPIXEL_PIN 8
#elif defined(ARDUINO_NRF52832_FEATHER )
#define SerialESP32 Serial1
#define SPIWIFI SPI // The SPI port
#define SPIWIFI_SS 16 // Chip select pin
#define ESP32_RESETN 15 // Reset pin
#define SPIWIFI_ACK 7 // a.k.a BUSY or READY pin
#define ESP32_GPIO0 -1
#define NEOPIXEL_PIN 8
#elif !defined(SPIWIFI_SS) // if the wifi definition isnt in the board variant
// Don't change the names of these #define's! they match the variant ones
#define SerialESP32 Serial1
#define SPIWIFI SPI
#define SPIWIFI_SS 10 // Chip select pin
#define SPIWIFI_ACK 7 // a.k.a BUSY or READY pin
#define ESP32_RESETN 5 // Reset pin
#define ESP32_GPIO0 -1 // Not connected
#define NEOPIXEL_PIN 8
#endif
#if defined(ADAFRUIT_PYPORTAL)
#define PIN_NEOPIXEL 2
#elif defined(ADAFRUIT_METRO_M4_AIRLIFT_LITE)
#define PIN_NEOPIXEL 40
#endif
#define PIN_NEOPIXEL 8
Adafruit_NeoPixel pixel = Adafruit_NeoPixel(1, PIN_NEOPIXEL, NEO_GRB + NEO_KHZ800);
void setup() {
Serial.begin(baud); // TEENSY
pixel.begin();
pixel.setPixelColor(0, 10, 10, 10); pixel.show();
while (!Serial);
pixel.setPixelColor(0, 50, 50, 50); pixel.show();
delay(100);
SerialESP32.begin(baud); //Serial1
pinMode(SPIWIFI_SS, OUTPUT);
pinMode(ESP32_GPIO0, OUTPUT);
pinMode(ESP32_RESETN, OUTPUT);
delay(100);
// manually put the ESP32 in upload mode
digitalWrite(ESP32_GPIO0, LOW);
digitalWrite(ESP32_RESETN, LOW);
delay(1000);
digitalWrite(ESP32_RESETN, HIGH);
// pixel.setPixelColor(0, 20, 20, 0); pixel.show();
delay(1000);
}
void loop() {
while (Serial.available()) {
// pixel.setPixelColor(0, 10, 0, 0); pixel.show();
SerialESP32.write(Serial.read());
}
while (SerialESP32.available()) {
// pixel.setPixelColor(0, 0, 0, 10); pixel.show();
Serial.write(SerialESP32.read());
}
}