SonarsΒΆ

Sonar connectors

RoverWing Sonar connectors

RoverWing provides connections for three ultrasonic distance sensors (HC-SR04 or compatible). These sonar sensors are very popular with hobby robot builders due to their low price (about $2.50/piece) and reliability. Note that these sonars use 5V power, so they can not be directly connected to 3.3V boards such as Adafruit Feather boards. RoverWing solves this problem by including a voltage divider circuit.

The sonars ports use JST PH4 connectors; see Cables section for advice on choosing connector cables. The pin order is as follows:

  • GND (closest to board edge)
  • 5V
  • Trig
  • Echo