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
- Arduino IDE
- Arduino ESP8266
- ArduinoJSON Library (installed via the Arduino IDE)
- Arduino-Temperature-Control-Library (included)
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.
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}
| Parameter | Min | Max | Units |
|---|---|---|---|
| Supply Voltage | 3.0 | 3.6 | V |
| ESP8266 Current | 0.002 | 70 | mA |
| DS18b20 Current | 0.75 | 1 | mA |
A Python 3.x monitor and ELK Logstash configuration are included in the examples directory.
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.