2021-11-15 19:07:58 +01:00
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# Homie Room Sensor
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located in IKEAs Vindriktning
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after this upgrade it will measure:
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* air quality
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* temperature
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* pressure
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* altitude
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2021-11-15 19:11:41 +01:00
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The system can be powered by USB-C or Micro-USB, attached at ESP8266 board.
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2021-11-15 19:03:27 +01:00
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## Filesystem
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### Configuration
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Use the config-example.json from the host folder and create here a config.json file.
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### HowTo upload
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Start Platform.io
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Open a new Atom-Terminal and generate the filesystem with the following command :
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```pio run -t buildfs```
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Upload this new generated filesystem with:
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```pio run -t uploadfs```
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### Command pio
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Can be found at ```~/.platformio/penv/bin/pio```
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# Hardware
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ESP8266 version ESP12 was used.
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The prototype was based on the Witty board
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```
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REST | TXD
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ADC LDR | RXD
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CH_PD | GPIO05
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GPIO16 | BTN GPIO04
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GPIO14 | GPIO00
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GPIO12 RGB-G | GPIO02
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GPIO13 RGB-B | RGB-R GPIO15
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VCC | GND
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USB
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```
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The following pins are used:
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* GPIO4 PM1006 particle sensor PIN REST on Vindriktning board
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* GPIO2 WS2812 stripe out of three LEDs, replacing the original LEDs at front
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* GPIO15 Red LED (optional)
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* GPIO12 Green LED (optional) Used as 3.3V Supply for the I2C sensor
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* GPIO13 Blue LED (optional)
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* GPIO13 VCC of I2C (3.3 V)
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* GPIO14 I2C clock
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* GPIO5 I2C data pin
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2021-11-15 19:11:41 +01:00
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# Bill of materials
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* IKEA Vindriktning
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* ESP8266 (e.g. Witty board)
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* BMP280 sensor
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* some wire
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2021-12-15 21:20:27 +01:00
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# Webserver
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This version has a webserver activated, if MQTT server is set to **localhost**.
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Every 20 seconds a measurement is performed.
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This is shown in a diagram via chart.js
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2021-11-15 19:03:27 +01:00
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# Sources
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For the Witty board
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* [https://github.com/amkuipers/witty Witty pinout]
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* [https://arduino.ua/products_pictures/large_AOC361-5.jpg Schematics]
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* [https://www.chartjs.org/docs/latest/getting-started/integration.html]
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