Info about Smart motor/robot

• Arduino Mega
  • 40mA per pin -- so motors need separate power supply
  • DC Current VCC and GND Pins...... 200.0 mA (per pin
• Smart motor:
  • Parameter Operating voltage: 3V ~ 12V DC (recommended value is 6 ~ 8V)
  • Maximum torque: 800g.cm (3V)
  • Speed without load: 170RMP (3V)
  • Reduction ratio: 1:48
  • Load current: 70mA (250mA MAX) (3V pm) With EMC, it has strong anti-interference ability and causes no interference to micro-controller.
  • Tire Parameter Center hole: 5.3MM x 3.66MM
  • Diameter: 66MM
  • Width: 2.66MM
• HC-SR04 Distance Sensor
  • Power Supply :+5V DC
  • Quiescent Current : <2mA
  • Working Currnt: 15mA
  • Effectual Angle: <15°
  • Ranging Distance : 2cm – 400 cm/1" - 13ft
  • Resolution : 0.3 cm
  • Measuring Angle: 30 degree
  • Trigger Input Pulse width: 10uS
  • Dimension: 45mm x 20mm x 15mm
• L298N Dual H-Bridge Robot Stepper Motor Control
  • Chip: L298N
  • Logic voltage: 5V
  • Logic current 0mA-36mA
  • Operating mode: H-bridge driver (dual)
  • Drive voltage: 5V-35V
• Power draw info
  • 2 motors @ 70Ma = 140mA
  • 3 HC-sr04 is 3 x 15mA = 45mA
  • motor controller 36mA