trlafleur

This will calculates proper AQI and Nowcast-AQI from PM2.5 sensors readings.

Expect a feed of PM2.5 sensor readings, that are stored in a queue, each hour, we take the average of these values and store in an hour array.

We then compute AQI and NowCast-AQI for 24, 12, 6, and 3 hours, and send them out as MQTT data and in JSON format.

References:

ArcaneNibble

canvas_type=2
Color4DPCBLayer_F.Cu=rgb(255, 133, 127)
Color4DPCBLayer_In1.Cu=rgb(255, 243, 82)
Color4DPCBLayer_In2.Cu=rgb(197, 163, 255)
Color4DPCBLayer_In3.Cu=rgb(194, 0, 0)
Color4DPCBLayer_In4.Cu=rgb(0, 132, 132)
Color4DPCBLayer_In5.Cu=rgb(0, 132, 0)
Color4DPCBLayer_In6.Cu=rgb(0, 0, 132)
Color4DPCBLayer_In7.Cu=rgb(132, 132, 132)
Color4DPCBLayer_In8.Cu=rgb(132, 0, 132)

remy

README first for github

Using a user style sheet extension, this CSS should give you enough targetting to put the README above the files, putting the important information in the right place.

I use uptight, by the late Chloe Weil, you can use what you want.

sabas1080

/*
  Copyright (c) 2014-2020 Electronic Cats SAPI de CV.  All right 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

natcl

version: '2'
services:
  nodered:
    image: nodered/node-red-docker:0.17.5
    restart: always
    environment:
      - TZ=America/Montreal
    logging:
      driver: syslog
      options:

BBBSnowball

import serial
from serial.tools import miniterm
import subprocess, sys, re, os

class ESPMiniterm(miniterm.Miniterm):
  def handle_menu_key(self, c):
    if c == '\x15':  # ctrl-u
      self.upload_file()
    else:
      super(ESPMiniterm, self).handle_menu_key(c)

kuc-arc-f

/*
 esp32 ,chip Revision check
 thanks:
 https://www.esp32.com/viewtopic.php?t=1358
*/


#include "soc/efuse_reg.h"

//

spacehuhn

How to flash your ESP8266 without a USB-Serial adapter but with an Arduino.

First be sure everything is connected correcly:

Arduino	ESP82666
TX	RX
RX	TX
GND	GND
GND	GPIO-15

sticilface

Guide to PROGMEM on ESP8266 and Arduino IDE

Intro

On low memory devices like the arduino and esp8266 you do not want strings to be stored in RAM. This occurs by default on these systems. Declare a string const char * xyz = "this is a string" and it will use up RAM.

The solution on these devices is to allow strings to be stored in read only memory, in Arduino this is the PROGMEM macro. Most of my experience is with the ESP8266 which is a 32bit micros controller. This device stores PROGMEM data in flash. The macro PROGMEM on ESP8266 is simply

#define PROGMEM   ICACHE_RODATA_ATTR

LarsBergqvist

#!/usr/bin/env python3
import paho.mqtt.client as mqtt
import datetime
import time
from influxdb import InfluxDBClient

def on_connect(client, userdata, flags, rc):
    print("Connected with result code "+str(rc))
    client.subscribe("Home/#")