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https://github.com/entorb/arduino-sensorics

Code for reading various sensors attached to a Arduino ESP32, data is uploaded via WiFi to an InfluxDB or displayed.
https://github.com/entorb/arduino-sensorics

arduino arduino-sensorics bh1750 bme280 bme680 co2 co2ampel esp32 esp32-arduino i2c influxdb mh-z19 oled rgb-led tm1637

Last synced: about 2 months ago
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Code for reading various sensors attached to a Arduino ESP32, data is uploaded via WiFi to an InfluxDB or displayed.

Host: GitHub
URL: https://github.com/entorb/arduino-sensorics
Owner: entorb
License: gpl-3.0
Created: 2020-10-24T09:06:44.000Z (almost 4 years ago)
Default Branch: main
Last Pushed: 2024-06-28T12:38:29.000Z (3 months ago)
Last Synced: 2024-07-27T04:32:41.866Z (2 months ago)
Topics: arduino, arduino-sensorics, bh1750, bme280, bme680, co2, co2ampel, esp32, esp32-arduino, i2c, influxdb, mh-z19, oled, rgb-led, tm1637
Language: C++
Homepage:
Size: 2.13 MB
Stars: 3
Watchers: 1
Forks: 2
Open Issues: 0
Metadata Files:
- Readme: README.md
- License: LICENSE

Awesome Lists containing this project

README

        # Arduino-sensorics

* Arduino ESP32 micro-controller programming

* Provides simple and clean library for

  * reading of various sensors

  * export data via WiFi to InfluxDB for visualization in Grafana, see my [raspi-sensorics](https://github.com/entorb/raspi-sensorics/) repository

  * writing to various displays

  * using a device_setup.h file to select the devices attached to that specific Arduino ESP32

## Devices implemented so far

* Abstract device class that all other devices inherit from in [TM_Device_Class.cpp](https://github.com/entorb/arduino-sensorics/blob/main/libraries/TM/src/TM_Device_Class.cpp)

* InfuxDB interface via WiFi in [TM_InfluxDB_Class.cpp](https://github.com/entorb/arduino-sensorics/blob/main/libraries/TM/src/TM_InfluxDB_Class.cpp)

* BME280 sensor for temperature, humidity and pressure in [TM_BME280_Class.cpp](https://github.com/entorb/arduino-sensorics/blob/main/libraries/TM/src/TM_BME280_Class.cpp)

* BH1750 sensor for illumination in [TM_BH1750_Class.cpp](https://github.com/entorb/arduino-sensorics/blob/main/libraries/TM/src/TM_BH1750_Class.cpp)

* MH-Z19B sensor for CO2 concentration in [TM_MH_Z19_Class.cpp](https://github.com/entorb/arduino-sensorics/blob/main/libraries/TM/src/TM_MH_Z19_Class.cpp)

* 7-segment 4-digit TM1637 display in [TM_7SegmentDisplay_Class.cpp](https://github.com/entorb/arduino-sensorics/blob/main/libraries/TM/src/TM_7SegmentDisplay_Class.cpp)

* OLED display 128x32px and 128x64px in [TM_OLED_Class.cpp](https://github.com/entorb/arduino-sensorics/blob/main/libraries/TM/src/TM_OLED_Class.h)

* RGB-LEDs: Ring and Single LED in [TM_LED_Ring_Class.cpp](https://github.com/entorb/arduino-sensorics/blob/main/libraries/TM/src/TM_LED_Ring_Class.cpp)

## Arduino Package Requirements

* [Adafruit BME280 Library](https://github.com/adafruit/Adafruit_BME280_Library)

* [BH1750](https://github.com/claws/BH1750)

* [ESP8266 Influxdb](https://github.com/tobiasschuerg/InfluxDB-Client-for-Arduino)

* [MH-Z19](https://github.com/WifWaf/MH-Z19)

* [TM1637](https://github.com/avishorp/TM1637)

* [U8G2](https://github.com/olikraus/u8g2)

* [ESP32 AnalogWrite](https://github.com/ERROPiX/ESP32_AnalogWrite)

## Achievements

* Learning basics of C++: inheritance, templates, ...

* Using pre compiler #define in device_setup.h file to select which classes are compiled to save time and memory

* Power reduction from 1W to 0.3W by

  * Under-clocking the ESP32 from 240 to 80 MHz via setCpuFrequencyMhz(80) in ([TM_ESP32_Class.cpp](https://github.com/entorb/arduino-sensorics/blob/main/libraries/TM/src/TM_ESP32_Class.cpp)

  * Enabling WiFi modem sleep via esp_wifi_set_ps(WIFI_PS_MODEM) in [TM_InfluxDB_Class.cpp](https://github.com/entorb/arduino-sensorics/blob/main/libraries/TM/src/TM_InfluxDB_Class.cpp)

* OLED display: implemented bar chart

* Standalone CO2 traffic light for our kindergarden and school

  * offline

  * in proper case

  * using display and traffic light for visualization

  * see German [Bauanleitung](https://github.com/entorb/arduino-sensorics/blob/main/CO2-Ampel-Bauanleitung.md)

* Experiment with display devices

## Next steps

* Design and build cases via CAD and CNC

* Add more sensors

## Photos and screenshots

CO2 Traffic Light V1.2: Massproduction and added history bar chart via OLED display ([Bauanleitung](https://github.com/entorb/arduino-sensorics/blob/main/CO2-Ampel-Bauanleitung.md))

![4xCO2-in-Holz](https://github.com/entorb/arduino-sensorics/blob/main/photos/4xCO2-in-Holz.jpg)

CO2 Traffic Light V1 for our School ([Bauanleitung](https://github.com/entorb/arduino-sensorics/blob/main/CO2-Ampel-Bauanleitung.md))

![ASGS-V1.jpg](https://github.com/entorb/arduino-sensorics/blob/main/photos/ASGS-V1.jpg)

CO2 Traffic Light Prototype for our Kindergarten: Display of CO2 level (measured by MH-Z19B) on a 7-segment display and RGB-LED

![KiTa-V1.jpg](https://github.com/entorb/arduino-sensorics/blob/main/photos/KiTa-V1.jpg)

Experimenting with different displays

![Display-Test.jpg](https://github.com/entorb/arduino-sensorics/blob/main/photos/Display-Test.jpg)

Display of CO2 level on small OLED display (measured by MH-Z19B)

![ESP32-MHZ19-OLED128x32.jpg](https://github.com/entorb/arduino-sensorics/blob/main/photos/ESP32-MHZ19-OLED128x32.jpg)

Display of CO2 in Grafana (measured by MH-Z1B9)

![Grafana-CO2.png](https://github.com/entorb/arduino-sensorics/blob/main/photos/Grafana-CO2.png)

Display of temperature, humidity and pressure in Grafana (measured by BME280)

![Grafana-T-H-P.png](https://github.com/entorb/arduino-sensorics/blob/main/photos/Grafana-T-H-P.png)

## Similar projects

* [UN-Hack-Bar: CO2 Ampeln für alle](https://www.un-hack-bar.de/2020/10/25/co2-ampeln-fuer-alle/)

* [UN-Hack-Bar: Repository](https://git.unhb.de/smash/co2ampel)

* [Heise: CO2-Ampel: Bauanleitung](https://www.heise.de/select/make/2020/5/2022015381334973804)

* [Heise: CO2-Ampel: Erfahrungsbericht aus der Schule](https://www.heise.de/news/CO2-Ampel-Erfahrungsbericht-aus-der-Schule-4932471.html)