Ultrasonic Ranger on Maker Pi Pico

[cgwaltney]

Are you using the Grove Unit?

Grove - Ultrasonic Distance Sensor

are you using this unit?

Grove Shield for Pi Pico - All female headers output, Grove interface for 2×...

or you could use

Seeed Studio XIAO RP2040 - Supports Arduino, MicroPython and CircuitPython

Seeed Studio Grove Base for XIAO - with embedded battery management chip