1.27 mm minimum

USB-C (5 V sink), I2C OLED + INA219, UART2 to PS5

30-50 mm x 60-100 mm

Production

3-8 V battery input; 5 V USB-C input; 12 V output; 3.3 V logic

No passives smaller than 0805; no pitch finer than 1.27 mm (use breakout/headers if needed)

PS5-Diagnose-Power-Supply-Stick

Power + Embedded

12 V output 10-30 W tightly regulated; >2 A peak current capability

flowchart TD subgraph PowerPath [Power Path] BAT["18650 1S via external BMS"] --> BOOST["Boost 3-8V to 12V 10-30W"] BOOST --> SHUNT["Current Shunt"] SHUNT --> CS["INA219 Current Sense"] CS --> SW["P-channel High-Side MOSFET"] SW --> PS5["PS5 12V Output Header"] end subgraph LogicPower [Logic Power] USB["USB-C 5V Input"] --> REG3V3["3.3V Regulator"] BAT --> REG3V3 REG3V3 --> MCU["ESP32-WROOM-32"] REG3V3 --> OLED["OLED 128x32 SSD1306"] REG3V3 --> CS end subgraph ControlAndIO [Control and IO] MCU --> CS MCU --> OLED MCU --> SW MCU --> UART["PS5 UART Header"] end subgraph Protection [USB Protection] USB --> CC["CC Rd Resistors"] USB --> ESD["ESD TVS on D+ D-"] end