air quality

# pyramidak air quality Now you can easily build air quality sensors for both indoor and outdoor environments. And the best part is that you can choose from multiple sensors from different brands and connect only the ones you need. Measured values are automatically sent via MQTT communication. The values 1-Good, 2-Fair, 3-Bad are displayed on the outside by a traffic lights whose brightness is controlled by an ambient light sensor. Perfectly fitting sensor boxes can be printed. [More about sensors](https://firm.jantac.net/hardware-en/) ### Advanced firmware All digital sensors have auto-detect connection at startup. In the firmware settings you will see detailed information about all sensors. The values of all sensors are evaluated into a summary virtual quality sensor, thanks to which you can easily do automations. In the pyramidak air firmware, the analog sensors can be set in the Sensor settings. Temperature, humidity and pressure can also be corrected here. LED traffic light is automatically adjusted by ambient light sensor, but you can adjust the maximal brightness. Firmware can be conveniently updated via a local web server. [More about Firmware](https://firm.jantac.net/firmware-en/) ### Open central system Visit web to see how easily add all sensors to any smart home central system via MQTT commmunication. [More about System](https://firm.jantac.net/system-en/) **Parts list - where to buy** [WeMosD1mini](https://s.click.aliexpress.com/e/_DBNhYw1) [pinHeaderSpec](https://s.click.aliexpress.com/e/_DEYSZ6D) [jackDC](https://s.click.aliexpress.com/e/_DFM7xSz) [sdMP1584-28V>5V](https://s.click.aliexpress.com/e/_Ddhmw5x) [switchSlide](https://s.click.aliexpress.com/e/_DeBjsF3) [connJST3Pset](https://s.click.aliexpress.com/e/_DegKvUZ)