The central control PCB for the STORM robot (Sooner Competitive Robotics). A Raspberry Pi Pico runs the robot's I/O: motor and servo PWM, quadrature encoders, actuator drivers, and links to the sonar and IR sensor boards.
- Controller: Raspberry Pi Pico (RP2040) with a reset switch and three status LEDs
- Power: 12 V input (XT60) with TVS protection and reverse-polarity Schottky diodes, feeding
- AP62301 buck converter, 12 V to 7 V for servos
- REG1117-5 LDO for 5 V
- REG1117-3.3 LDO for 3.3 V
- Motors: three PWM motor outputs (left, right, intake) and three quadrature encoder inputs
- Servos: three servo headers on the 7 V rail
- Actuators: three low-side ZXMN4A06 MOSFET drivers with flyback diodes
- Peripherals: I2C connectors to the sonar and IR boards, and a serial header to the onboard Pi
Top level
Raspberry Pi Pico, status LEDs, and actuator drivers
Connectors: servos, motors, encoders, actuators, power, serial, sensor boards
Power
| File | Contents |
|---|---|
master.SchDoc |
Top-level schematic |
pico.SchDoc |
Pico, LEDs, actuator drivers |
interfaces.SchDoc |
Connectors |
power.SchDoc |
Buck converter and LDOs |
STORMControl.PcbDoc, mainpcb.PcbDoc |
PCB layout |
STORM_Control_Board.PrjPcb |
Altium project |
Designed in Altium Designer.