Skip to content
master
Switch branches/tags
Go to file
Code

Latest commit

 

Git stats

Files

Permalink
Failed to load latest commit information.
Type
Name
Latest commit message
Commit time
 
 
 
 
src
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

readme.md

ESP8266 Monitor

Broadcasts the current state of an ESP8266 and DS18b20 temperature monitor, using deep sleep mode to keep current draw to a minimum - ideal for battery powered projects.

Measurements are broadcast as JSON data to the local network over UDP.

https://eartoearoak.com/software/esp8266_monitor

Copyright 2018 Al Brown

al [at] eartoearoak.com

Requirements

Usage

Breadboard Schematic

Edit 'config.h' changing the necessary #define statements to suit your needs:

  • SSID_NAME: The name of your WiFi access point
  • SSID_PASSWORD: The WiFi password
  • INTERVAL: The time between measurements (if this is too short it will never deep sleep)
  • VCC: The power supply voltage (3 - 3.6 v)
  • DIVIDER: If you have a voltage divider on the ADC input
  • ADC_SUPPLY: Uncomment to measure the supply voltage rather than the input on the ADC pin

Use the Arduino IDE to upload the 'ESP8266_Monitor.ino' sketch.

Output

JSON formatted data is broadcast to the local network on the default port of 7711.

Example output:

{"Voltage":0.283594,"GPIO0":true,"GPIO2":true,"GPIO5":true,"GPIO12":true,"GPIO13":true,"GPIO14":true,"GPIO15":false,"Temperature":14.3125,"Host":"ESP_F1DCD0","RSSI":-37}

Electrical Characteristics

Parameter Min Max Units
Supply Voltage 3.0 3.6 V
ESP8266 Current 0.002 70 mA
DS18b20 Current 0.75 1 mA

Examples

A Python 3.x monitor and ELK Logstash configuration are included in the examples directory.

License

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation

This program 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 General Public License for more details.

The license is available from http://www.gnu.org/licenses/gpl-2.0.html.

About

Broadcasts the current state of an ESP8266 and DS18b20 temperature monitor, using deep sleep mode to keep current draw to a minimum - ideal for battery powered projects.

Topics

Resources

License

Releases

No releases published

Packages

No packages published