Slim and modular SlimeVR module

Goals

• Easy wiring and provide supplementary components (caps, etc.)
• Support many readymade AliExpress-tier modules (they seem to have similar pinouts)
• Be compatible with SlimeVR
• Provide wide selection of power input methods

Needed parts

PCB

• SW1 = PCM12 slide switch
• R1, R2, R3 = 10K pull-up/down resistors for ESP
• R4 and R5 = Similar sized resistor ~100K (battery monitor voltage divider)
• 100n bypass caps
• Optional AMS1117-3.3V regulator
• Optional 1N5817 Diode

SMD components are 0805 sized

External modules

• Accelerometer module (for example: MPU6XXX or BNO08X)
• Power management module (for example: TP4056)
• Lithium battery

Design sketches

Example