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Arduino and PlatformIO

:::note Status, checked 2026-11-13 The library has host-side tests of the frame parsing. A library entry for a model is not a hardware-compatibility guarantee, so every model is Untested on the compatibility page. LRF10VB is not in the library yet. :::

Install​

  • Arduino IDE or Arduino CLI: search for ErdiLRF in the Library Manager. If your local index is out of date, refresh it or install from Git.
  • From Git: arduino-cli lib install --git-url https://github.com/ErdiTech/ErdiLRF
  • PlatformIO, in platformio.ini:
lib_deps =
    erdi-tech/ErdiLRF

First sketch​

#include <ErdiLRF.h>

ErdiLRF lrf(Serial1, ERDI_LRF3000A1);

void setup() {
  Serial.begin(115200);
  Serial1.begin(erdiDefaultBaud(ERDI_LRF3000A1));   // ESP32: Serial1.begin(baud, SERIAL_8N1, RX_PIN, TX_PIN)
  lrf.setTimeout(1000);
}

void loop() {
  ErdiMeasurement m;
  if (lrf.measure(&m) == ERDI_OK) {
    Serial.println(m.metres, 3);
  }
  delay(200);
}

Change the model constant to yours (ERDI_LRF22VB, ERDI_LRF100H and so on). The baud rate comes from the model table.

Notes​

  • Family B modules run at 460800 baud and need a hardware UART. AVR SoftwareSerial cannot reach that rate.
  • Cross TX and RX, share ground, power the module from its own supply: wiring and power.
  • Repository: ErdiTech/ErdiLRF. Examples: BasicMeasure and ContinuousStream.