1  // SPDX-FileCopyrightText: 2022 Limor Fried for Adafruit Industries
  2  //
  3  // SPDX-License-Identifier: MIT
  4  
  5  #include <Arduino.h>
  6  #include "Adafruit_LC709203F.h"
  7  #include <Adafruit_NeoPixel.h>
  8  #include "Adafruit_TestBed.h"
  9  #include <Adafruit_BME280.h>
 10  #include <Adafruit_ST7789.h> 
 11  #include <Fonts/FreeSans12pt7b.h>
 12  
 13  Adafruit_BME280 bme; // I2C
 14  bool bmefound = false;
 15  extern Adafruit_TestBed TB;
 16  
 17  Adafruit_LC709203F lc;
 18  Adafruit_ST7789 display = Adafruit_ST7789(TFT_CS, TFT_DC, TFT_RST);
 19  
 20  GFXcanvas16 canvas(240, 135);
 21  
 22  void setup() {
 23    Serial.begin(115200);
 24   // while (! Serial) delay(10);
 25    
 26    delay(100);
 27    
 28    // turn on the TFT / I2C power supply
 29    pinMode(TFT_I2C_POWER, OUTPUT);
 30    digitalWrite(TFT_I2C_POWER, HIGH);
 31  
 32    pinMode(NEOPIXEL_POWER, OUTPUT);
 33    digitalWrite(NEOPIXEL_POWER, HIGH);
 34    delay(10);
 35    
 36    TB.neopixelPin = PIN_NEOPIXEL;
 37    TB.neopixelNum = 1; 
 38    TB.begin();
 39    TB.setColor(WHITE);
 40  
 41    display.init(135, 240);           // Init ST7789 240x135
 42    display.setRotation(3);
 43    canvas.setFont(&FreeSans12pt7b);
 44    canvas.setTextColor(ST77XX_WHITE); 
 45  
 46    if (!lc.begin()) {
 47      Serial.println(F("Couldnt find Adafruit LC709203F?\nMake sure a battery is plugged in!"));
 48      while (1);
 49    }
 50      
 51    Serial.println("Found LC709203F");
 52    Serial.print("Version: 0x"); Serial.println(lc.getICversion(), HEX);
 53    lc.setPackSize(LC709203F_APA_500MAH); 
 54  
 55    if (TB.scanI2CBus(0x77)) {
 56      Serial.println("BME280 address");
 57  
 58      unsigned status = bme.begin();  
 59      if (!status) {
 60        Serial.println("Could not find a valid BME280 sensor, check wiring, address, sensor ID!");
 61        Serial.print("SensorID was: 0x"); Serial.println(bme.sensorID(),16);
 62        Serial.print("        ID of 0xFF probably means a bad address, a BMP 180 or BMP 085\n");
 63        Serial.print("   ID of 0x56-0x58 represents a BMP 280,\n");
 64        Serial.print("        ID of 0x60 represents a BME 280.\n");
 65        Serial.print("        ID of 0x61 represents a BME 680.\n");
 66        return;
 67      }
 68      Serial.println("BME280 found OK");
 69      bmefound = true;
 70    }
 71  }
 72  
 73  uint8_t j = 0;
 74  
 75  void loop() {
 76    Serial.println("**********************");
 77  
 78    TB.printI2CBusScan();
 79  
 80    if (j % 5 == 0) {
 81      canvas.fillScreen(ST77XX_BLACK);
 82      canvas.setCursor(0, 25);
 83      canvas.setTextColor(ST77XX_RED);
 84      canvas.println("Adafruit Feather");
 85      canvas.setTextColor(ST77XX_YELLOW);
 86      canvas.println("ESP32-S2 TFT Demo");
 87      canvas.setTextColor(ST77XX_GREEN); 
 88      canvas.print("Battery: ");
 89      canvas.setTextColor(ST77XX_WHITE);
 90      canvas.print(lc.cellVoltage(), 1);
 91      canvas.print(" V  /  ");
 92      canvas.print(lc.cellPercent(), 0);
 93      canvas.println("%");
 94      canvas.setTextColor(ST77XX_BLUE); 
 95      canvas.print("I2C: ");
 96      canvas.setTextColor(ST77XX_WHITE);
 97      for (uint8_t a=0x01; a<=0x7F; a++) {
 98        if (TB.scanI2CBus(a, 0))  {
 99          canvas.print("0x");
100          canvas.print(a, HEX);
101          canvas.print(", ");
102        }
103      }
104      display.drawRGBBitmap(0, 0, canvas.getBuffer(), 240, 135);
105      pinMode(TFT_BACKLITE, OUTPUT);
106      digitalWrite(TFT_BACKLITE, HIGH);
107    }
108    
109    TB.setColor(TB.Wheel(j++));
110    delay(10);
111    return;
112  }