This is a boot dryer controller using an ESP32! See the files for all the files you need to make this yourself.
NOTE. THIS PROJECT IN ITS CURRENT STATE CAN BE VERY DANGEROUS.
- The boot dryer I chose, a MaxxDry, seems to be a fire hazard if the heater is on but the fan is turned off. In the default setup with the analog front panel controls, the dryer cannot be put in a state with the heater on but the fan off. If something happens and the software fails to where the relays are in a dangerous state, it could pose a fire hazard.
- This project involves mains wiring and the schematic as it stands does not include fuses or any other safety features. Be careful!
Now, here's a description of all the files so you can make this yourself if you so choose!
The schematic is provided as smart_boot.pdf
smart_boot.csv is the BOM for all the items on the schematic.
I'm not providing a PCB because I don't want liability for poorly designing a PCB that could be dangerous. Please make sure you're building this circuit safely and know what you're doing when it comes to mains voltage and high power heating elements!
smart_boot_esp32.ino and config.json are required for the software bit. config.json holds all the information for connecting to WiFi, an MQTT broker, etc.
flows.json is the Node Red flow setup I used.
So yeah, that's about it! Please comment or message me if you have any questions, and let me know if you build this project yourself!