Definition of Pins
Introduction of Major Components Transmitter Transmitter is used to send ultrasonic signals.
Receiver Receiver is for collecting ultrasonic signals.
MCU This is the master chip of sonar:bit.
Chip for Sending Signal This chip is used to drive the transmitter to send out ultrasonic signals.
Chip for Receiving Signal This chip is used to receive and process ultrasonic echo signals as well as give feedbacks to the master chip.
G-V-S Port G-V-S port allows outer devices control.