Wireless gaming mouse

Executes firmware and manages input processing and communications

32-bit ARM Cortex-M class or similar, integrated USB or SPI/I2C/UART peripherals

Mounts and interconnects all electronic components

FR4, typically 2 to 4 layers

Provides either 2.4 GHz or Bluetooth connectivity, or USB 2.0 full-speed wired interface

BT 5.x and 2.4 GHz RF SoC, or USB 2.0 FS PHY

Converts input power to stable logic rails for electronics

Buck converter and LDOs, typical 5 V to 3.3 V

Supplies power during wireless use

Single-cell Li-ion or LiPo, about 300 to 2000 mAh

Manages battery charging and overcurrent, overvoltage protection

Single-cell charger with 4.2 V termination, integrated protection FETs

Register user presses or clicks

Mechanical key switches or tactile micro switches, 10 to 50 million actuations typical

Tracks movement or position for pointing devices or dials

Optical or laser sensor, CPI/DPI from 800 to 26,000 typical

Provides status indication or per-key lighting

SMD RGB LEDs or addressable RGB packages

Shows mode, battery, or function feedback

Single-color LEDs, light pipes, or small OLED/LCD module

Physical data and power connection to host or charger

USB-C receptacle, USB 2.0 data lines

Radiates and receives RF signals for wireless modes

2.4 GHz PCB trace or chip antenna, 50 ohm

Stores firmware, lighting profiles, or settings

SPI NOR flash, about 2 to 16 MB

Carry signals and power between boards and modules

FPC ribbon cables, JST wire harnesses, pogo pins

Provide mechanical structure and protection

ABS plastic or aluminum alloy shells

Secures PCBs and modules, manages acoustics and feel

Metal or plastic standoffs, screws, gaskets, foams, plates

Stabilize device on surfaces and reduce friction

Rubber feet or PTFE skates

Wired data and power, or wireless 2.4 GHz link to host

USB-C to USB-A cable (about 1.5 m) or 2.4 GHz USB-A nano dongle