gistfile1.txt

#include <Wire.h>
#include <Adafruit_MCP4725.h>

Adafruit_MCP4725 dac;

#define GATE_PIN 12



void setup() {
  dac.begin(0x62);

  dac.setVoltage(0, 0);
}



void loop() {

    uint16_t v = random(0, 65535); 
    dac.setVoltage(v, 0);
    digitalWrite(GATE_PIN, 1);
    delay(500+random(0,500));
    digitalWrite(GATE_PIN, 0);
    delay(500+random(0,500));
}