suru-dissanaike

FROM ubuntu:bionic

RUN apt-get update && apt-get install -y \
software-properties-common \
apt-utils \
curl \
cppcheck \
flawfinder

RUN add-apt-repository ppa:mongoose-os/mos && apt-get update && apt-get install -y mos

suru-dissanaike

ESP32 IO PIN	Function	BME680	BQ27441	MH-Z19B	ADXL345	Comment
13	Application PB 1	N/A	N/A	N/A		Pull down push button
17	LED Green	N/A	N/A	N/A		LED
16	LED RED	N/A	N/A	N/A.		LED
32	SCL	PAD 4	PIN 2	N/A.	PIN14	I2C

suru-dissanaike

Type	Comment
Feature	Double the size of the PCB
Feature	Add BME680 to design, communication via I2C
Feature	Add Winsen MH-Z19B to design, communication via UART
Feature	Debug, keep breakout pins to listen to Tx, Rx, GND between Winsen and ESP32
Feature	Double the size of the PCB
Feature	Add enclosure holes for CBRS01VWH, can be used without Winsen sensor
CR	Remove BME280
CR	PWRLED1 LED should be controlled by ESP32

suru-dissanaike

{
  "data": {
    "remaining_capacity": 2.635,
    "full_available_capacity": 1.254,
    "battery_level": 100,
    "temperature": 26.9685,
    "voltage": 4.185
  },
  "device_id": "esp32_XXXXXX"
}

suru-dissanaike

{
  "data": {
    "pressure": 1007.2416,
    "humidity": 21.27,
    "temperature": 24.5
  },
  "device_id": "esp32_XXXXXX"
}

suru-dissanaike

{
  "data": {
    "core_temperature": 25.555556,
    "firmware": "1.0.1a",
    "model": "env ib-1",
    "uptime": 573618.977327,
    "free_ram": 196396,
    "total_ram": 283228
  },
  "device_id": "esp32_XXXXXX"

suru-dissanaike

// Default sensors address for BME280
let BME280_I2C_ADDRESS = 0x76;
let BQ27441_I2C_ADDRESS = 0x55;

let BQ27441_COMMAND_CONTROL = 0x00; // Control
let BQ27441_COMMAND_TEMP = 0x02; // Temperature 0.1°K
let BQ27441_COMMAND_VOLTAGE = 0x04; // Voltage mV
let BQ27441_COMMAND_FLAGS = 0x06; // Flags
let BQ27441_COMMAND_NOM_CAPACITY = 0x08; // NominalAvailableCapacity mAh
let BQ27441_COMMAND_AVAIL_CAPACITY = 0x0A; // FullAvailableCapacity mAh

suru-dissanaike

$ mos call I2C.Scan
[
  85,
  118
]
Command completed.

suru-dissanaike

ESP32 IO PIN	Function	Direction	BME280	BQ27441-G1	Comment
26	SCL	OUT	PAD 4	PIN 2	I2C
27	SDA	OUT	PAD 3	PIN 1	I2C

suru-dissanaike

const functions = require('firebase-functions');
var XMLHttpRequest = require("xmlhttprequest").XMLHttpRequest;
var xmlParser = require('fast-xml-parser');

const POSTS_URL = 'https://medium.com/feed/@suru.dissanaike';

const FetchData = (response) => {
    var request = new XMLHttpRequest();
    request.onreadystatechange = () => {
        if (request.readyState == 4 && request.status == 200) {