// Copyright (C)2026, Philip Munts dba Munts Technologies. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are met: // // * Redistributions of source code must retain the above copyright notice, // this list of conditions and the following disclaimer. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE // POSSIBILITY OF SUCH DAMAGE. #include #include MuntsTech::SONAR::M5Stack_Ultrasonic_I2C::RangeFinder_Class SONAR; void setup() { Serial.begin(115200); Serial.println("\n\n\ecArduino M5 Stack Ultrasonic-I2C SONAR Test\n"); Serial.flush(); // Board specific I2C bus initialization #if defined(ARDUINO_CYTRON_MAKER_NANO_RP2040) // Maker Port 0 Wire.setSCL(1); Wire.setSDA(0); #elif defined(ARDUINO_SEEED_XIAO_RP2040) || defined(ARDUINO_SEEED_XIAO_RP2350) #ifdef MUNTS_0021_REV3 // Edge pins D8 and D10 Wire.setSCL(3); Wire.setSDA(2); #else // Edge pins D4 and D5 Wire.setSCL(7); Wire.setSDA(6); #endif #elif defined(ARDUINO_SPARKFUN_PROMICRO_RP2040) || defined(ARDUINO_SPARKFUN_PROMICRO_RP2350) Wire.setSCL(17); Wire.setSDA(16); #elif defined(ARDUINO_PIMORONI_TINY2350) Wire.setSCL(13); Wire.setSDA(12); #else // Raspberry Pi Pico default Wire.setSCL(5); Wire.setSDA(4); #endif SONAR.Initialize(&Wire, 0x57); } void loop() { Serial.print("Distance: "); Serial.println(SONAR.read()); delay(500); }