Power Net Review

Review and wire the power nets in this design. Ensure all VCC, VDD, GND, and other power pins are properly connected to the correct power rails. Identify any power pins that are currently unconnected and connect them appropriately.
I’ll audit every sheet for power-pin connectivity, wire unconnected VCC/VDD/GND and related supply pins to the intended rails, then run a focused ERC/connectivity verification.
Reviewed all four schematic sheets and 419 objects. All required power pins are already connected correctly, so no schematic changes were necessary; a fresh ERC found zero power-pin, floating-pin, no-connect, single-pin-net, undriven-net, or decoupling issues.
Open items:
  • LEPTON35 pins 2–4 lack a definitive module pin map and remain unspecified.
  • IMU1 has both VIN and 3.3V tied to +3V3; this matches the current module convention but should be confirmed against the exact breakout-board model.
Document and verify open items
Fix LEPTON mapping
Verify IMU supply
Create bring-up checklist
Check BOM power parts
U2
AMP1
DRV2
PWM2
DRV1
LTE1
DRV3
LIDAR1
RADAR1
MIC1
PS2
SPK1
Resistance
MOTOR1
C_PWM2
Capacitance
100nF
MP1584_BUCK_3V3
SW1
C_VDD100
Capacitance
100nF
C_VDD50
Capacitance
100nF
C_3V3_BULK
Capacitance
4.7uF
MOTOR2
MOTOR5
C1
Capacitance
100uF
MOTOR6
C_DRV_BULK
Capacitance
470uF
C_VCAP1
Capacitance
2.2uF
C_VDD11
Capacitance
100nF
C2
Capacitance
100uF
MOTOR3
RADAR2
CAM1
PS3
WT901C
C_VCAP2
Capacitance
2.2uF
C_IMU1
Capacitance
100nF
LEPTON35
BAT1
MOTOR4
C_NRST
Capacitance
100nF
C_VDD27
Capacitance
100nF
PURETHERMAL3
F1
C3
Capacitance
100uF
C_VDD75
Capacitance
100nF
SV1
R_BOOT0
Resistance
10kΩ
R_SERVO_SCL
Resistance
4.7kΩ
R_IMU_SDA
Resistance
4.7kΩ
PS1
IMU1
JETSON1
Pin Number
40
SERVO6
R_SERVO_SDA
Resistance
4.7kΩ
Servo2
Servo4
Servo3
Servo1
R_IMU_SCL
Resistance
4.7kΩ

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    Irion Fire Evacuation Robot thumbnail
    Four-sheet connected schematic for the Irion fire evacuation robot, covering battery power conversion, STM32 motor control, Jetson sensors, and LTE communications.

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