This is the code for my air filtration control system. It is designed to integrate with a Bambu printer and control an air filtration system, e.g. a Bento Box air filter
It uses two sensors, one for air temperature and humidity, and one for VOCs. The temperature/humidity sensor is used to calibrate the VOC sensor.
It is designed to allow you to to integrate with the MQTT server built into Bambu printers.
It also has a JSON based HTTP api which lets you configure thresholds for when the air filter will run (which is controlled by MOSFETs)
Run idf.py menuconfig and set the variables in the fan controller config
section.
E.g.
WiFI SSID: <your wifi SSID>
WiFI Password: <your wifi password>
Maximum WiFI Retry Count: 10
Broker URI: mqtts://bblp:<password>@192.168.0.186:8883
Device Serial Number: <your serial number> (can be obtained from the printer itself)
Build the project and flash it to the board, then run the monitor tool to view the serial output:
Run idf.py -p PORT flash monitor to build, flash and monitor the project.
(To exit the serial monitor, type Ctrl-].)
See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.