The PCB is part of the Caznic Xi vacuum project, which is Open Source Hardware.

The ξ (or Xi) is an open-source vacuum cleaner project that explores how repairable, adaptable and well-documented household appliances can be designed from the ground up. The project combines mechanical design, firmware, web-based control and open hardware documentation to make vacuum cleaner development more accessible and reproducible.

The submitted PCB is a modular board for controlling and monitoring a high-RPM vacuum impeller/motor assembly. It is based on an ESP32-S3 and provides WiFi/BLE connectivity, PWM motor control, tachometer input, battery voltage and temperature monitoring, RGB LEDs, user buttons and break-off sections for flexible placement in different form factors. The board is designed as a modular development platform for experimenting with custom vacuum cleaner architectures.

Sources are at GitHub (open an Issue), documentation like build instructions and background information can be found at our HackMD pages (open for commenting).

Please have a look at the project's web site and sign up for our newsletter there.

A good start to get a first impression of the Xi vacuum cleaner is our 20 minute talk at the Open Hardware Summit (OHS) 2026:

PCB design: Thomas Weiß, Intuity Media Labs