Pexla Integration

/*
 * pexla_basic.ino
 * Minimal Pexla distance read — no API needed.
 * Tested: Arduino Uno, Nano, Mega
 *
 * Wiring:
 *   Pexla TX  →  Arduino RX (pin 0, or SoftwareSerial)
 *   Pexla RX  →  Arduino TX (pin 1)
 *   Pexla VCC →  3.3V or 5V (check sensor spec)
 *   Pexla GND →  GND
 */

#define PEXLA_BAUD  9600
#define BUF_SIZE    16

char    buf[BUF_SIZE];
uint8_t buf_idx = 0;

void setup() {
    Serial.begin(115200);       /* Debug output to PC */
    Serial1.begin(PEXLA_BAUD); /* Pexla on hardware UART1 */
    Serial.println("Pexla Basic Reader — waiting for data...");
}

void loop() {
    while (Serial1.available()) {
        char c = Serial1.read();
        if (c == '\n' || c == '\r') {
            if (buf_idx > 0) {
                buf[buf_idx] = '\0';
                parse_frame(buf);
                buf_idx = 0;
            }
        } else if (buf_idx < BUF_SIZE - 1) {
            buf[buf_idx++] = c;
        }
    }
}

void parse_frame(const char *line) {
    /* Default output: "R12345" → distance 12345 mm */
    if (line[0] == 'R') {
        long dist_mm = atol(&line[1]);
        Serial.print("Distance: ");
        Serial.print(dist_mm);
        Serial.println(" mm");
    }
}

"""
pexla_basic.py
Minimal Pexla read loop — no API configuration needed.
Requires: pip install pyserial
"""
import serial

PORT     = '/dev/ttyUSB0'   # Windows: 'COM3', macOS: '/dev/cu.usbserial-...'
BAUDRATE = 9600             # Pexla default baud rate

def main():
    with serial.Serial(PORT, BAUDRATE, timeout=2) as sensor:
        print(f"Connected to {PORT} @ {BAUDRATE} bps")
        print("Reading distance (mm). Press Ctrl-C to stop.\n")

        while True:
            line = sensor.readline().decode('ascii', errors='ignore').strip()

            # Default output frame: "R1234" where 1234 is mm distance
            if line.startswith('R') and line[1:].isdigit():
                distance_mm = int(line[1:])
                print(f"Distance: {distance_mm:5d} mm  ({distance_mm / 1000:.3f} m)")

if __name__ == '__main__':
    main()

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Selected parameters for the four optimization areas. Prefix with * to persist to Flash. Full parameter list available in the Pexla API documentation.