MicroPython (ESP32, RP2040)

:::note Status, checked 2026-11-13 The frame parsing is unit-tested under CPython with the datasheet frames. It has not been run on a board with a live module by the maintainers, so it is Untested. :::

Install on the board with Wi-Fi up, or copy the file with mpremote:

import mip
mip.install("github:ErdiTech/erdi-lrf-esp32-micropython")

Streaming module (family B):

from erdi_lrf import open_uart
lrf = open_uart("LRF22VB", uart_id=2, tx=17, rx=16)   # baud picked from the model table
print(lrf.read_latest())                               # metres, or None if out of range

Polled module (family A):

lrf = open_uart("LRF3000A1")
print(lrf.measure())                # metres, None with no valid echo, OSError on timeout

Wiring on an ESP32 (UART2): module TX to GPIO16, module RX to GPIO17, common ground, own supply. Supply voltage is not UART voltage, use a level shifter if they differ: wiring and power.

Repository: ErdiTech/erdi-lrf-esp32-micropython, single file erdi_lrf.py with examples for ESP32 and RP2040.