This repository contains a custom PCB for use with the awesome work at Roborock CPAP. The PCB shields the controller board from any back flow that might occur from the brushless controller.
The logic is the same as in the work of stas2z but reshaped to better fit on the back of the blower while also allowing for a cooling fan to be added.
| Quantity | Designation | Description |
|---|---|---|
| 1 | SHOTTKY2 | SS34 Diode |
| 2 | SHOTTKY1 | SS54 Diode |
| 1 | ZENER1, ZENER2 | BZT52C5V1S Diode |
| 1 | R2 | 1206 10kΩ resistor |
| 1 | R1 | 1206 1kΩ resistor |
| 2 | J1, J2 | JST XH 3P 2.54mm |
| 1 | J3 | JST XH 2P 2.54mm |
| 1 | - | 4010 cooling fan 24V |
| 2 | - | M3x6 |
| 4 | - | M3x12 |
| 4 | - | M3 hex nut |
| 4 | - | M3 heat set insert |
The pinout can also be found on the back side of your board and may be different from the most recent version (see note below).
Attention:
This motor pinout changed in version 0.2.0 due to a rotation of a connector. The same cables will work though since the connector has only been rotated. Refer to the writing on the back of your board.
In version 0.2.0, the 2 pin fan connector was labeled with switched GND and VCC.
In order to support this project, please consider ordering it through my affiliate link.
The gerber and BOM/CPL files can be found under kicad/.
I have also developed some additional mounting options for the Roborock Fan:
- VzBot 235
- more coming soon...
The development of this board was kindly supported by PCBWay who sent me some prototypes of these boards free of charge.
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
