This is a SlimeVR hardware project, including a PCB file and case models.
- Using modules instead of SMD, the parts are consistent with the schematics of the official document
- The wiring method is consistent with the schematics of the official document too, no need to change the pin definition.
- Battery sense
- Charge diodes
- Auxiliary tracker connector (optional)
First, prepare the following materials:
| Designator | Materials | Quantity | Comment |
|---|---|---|---|
| U1 | ESP8266-D1-Mini | 1 | Also called WeMos D1 Mini, Type-C is recommended |
| U2 | BNO08X | 1 | IMU, BNO085/BNO080 |
| U3 | TP4056 | 1 | TP4056, Type-C is recommended |
| D1, D2 | 1N5817 | 2 | Charge diodes |
| R1 | 180k 1/4W resistor | 1 | Battery sense |
| SM1 | MSK-12D19 (1P2T) | 1 | Toggle Switch |
| BT1 | Molex PicoBlade connector 1x2p 1.25mm vertical | 1 | This is a common connector type for lithium batteries |
| 3.7v lithium battery | 1 | 102540mm (102540) is recommended | |
| J1 | Molex PicoBlade connector 1x5p 1.25mm vertical | 1 | Auxiliary tracker connector (this is an optional) |
| JP1 | PinHeader 1x2p 1.27mm vertical | 1 | Pinheader for jumper (this is an optional) |
Then you need to download the Gerber.zip file, provide this file to the PCB manufacturer to make your boards.
Finally, download the Case.stl file and Lip.stl file and use it for 3d printing, you will get cases.
Solder the parts that need to be soldered to the PCB, Your board should now look like this:
You can now connect the D1 Mini to your computer with a USB cable, and then burn the firmware. If everything is ok, you can plug the lithium battery into the connector:
Last step, put the tracker in the box and snap the lid on, you may need Hot-melt adhesive to hold it in place. Now your tracker is ready, enjoy it!
If you need to connect a auxiliary tracker, you should use this case with a hole: Case-AuxHole.stl Lip-AuxHole.stl , the extra hole is used to pass the connecting wire of the auxiliary tracker. In order to use the auxiliary tracker, you need also to solder J1 and JP1 to the PCB, then prepare a jumper cap, and insert the jumper cap on JP1.
You can clone or download the firmware on official frimware repo , if you don't use auxiliary tracker, just make the following changes in defines.h :
#define BOARD BOARD_WEMOSD1MINI
#define IMU_ROTATION DEG_180If you use auxiliary tracker, then also need to make the following changes in defines.h :
#define SECOND_IMU BNO085
#define SECOND_IMU_ROTATION DEG_0For other settings, please follow the official documentation.
The SlimeVR-PCB folder is the KiCad project folder, while the SlimeVR-Case folder has the FreeCAD model files for the case and lid.
