PitNode is an open-source DIY BBQ thermometer. It is based on the RPi Pico 2W (2350) microcontroller but can be easily adapted for other platforms.
It is intended for makers and technically experienced users who want to build their own temperature monitoring system for BBQ and smoking applications.
This is the HW repository for the PitNode Pico Touch Extension Board.
There is also a separate software repository available for the PitNode.
For more information and documentation see
"PitNode" is the project name used for this open-source project.
Note
This project is not a finished consumer product, but a DIY project intended for makers and technically experienced users.
Status: Active development
- First hardware prototype is running
- Core functionality (measurement, alarms, Touch-UI, WiFi, Webserver, Websocket) is implemented
- APIs and internal structure may still change
- Not yet considered feature-complete or production-ready
- Monitoring of core temperature on 3 channels
- Compatible with many NTC based probes
(RTD probes possible in theory, not yet implemented) - Additional channel for thermocouple probes type K for grill temperature monitoring
- Calibration wizard to calibrate NTC probes
- Temperature readout on a colored touch display
- Target core temperatures can be set individually for each channel
- Acoustic and optical alarm function when target core temperature is reached
- Wifi connection (obfuscated password storage)
- Webserver for accessing via browser with smartphone or other device with nice web UI
- Live update via websocket
- PCB layout available in the hardware repository
- Enclosure files for 3D print available in the hardware repository
This project is licenced under different licenses. SW is licenced under - AGPL-3.0-or-later HW design files are licensed under - CC BY-NC-SA 4.0
See LICENSE.md for details.
Before building or using the PitNode project based on the information published here or on GitHub, please ensure that doing so is permitted in your local jurisdiction. Local laws, regulations, or patents may apply.
This project and all associated documentation are provided “as is”, without warranty of any kind, express or implied, including but not limited to warranties of merchantability or fitness for a particular purpose.
PitNode is a DIY project intended for technically experienced users. You are responsible for ensuring correct assembly, configuration, and safe operation. The author does not guarantee that the project is safe, legal, or suitable for any particular use case.
Copyright (c) 2026 Philipp Geisseler