M5StickC DAC HAT MCP4725

Description

DAC_HAT is also a type of C-HAT specifically design for M5StickC controller. Same as DAC unit, this is a voltage output DAC converter for stickc. It can generate a voltage of 0～3.3V. 
Packed with a DAC converter chip MCP4725, which is low-power, high accuracy, single-channel, 12-bit buffered voltage output Digital-to-Analog Converter (DAC) with a non-volatile memory (EEPROM). Its on-board precision output amplifier allows it to achieve rail-to-rail analog output swing. 
The DAC input and configuration data can be programmed to the non-volatile memory (EEPROM) by the user using the I2C interface command. I2C address: 0x60

Product Features

• M5StickC Compatible
• Output: 0～3.3V
• Software Development Platform: Arduino, UIFlow(Blockly, Python)
• MCP4725
  • 12-BitResolution
  • External A0 Address Pin
  • NormalorPower-DownMode
  • Fast Settling Time of 6 μs (typical)
  • ExternalVoltageReference(VDD)
  • Rail-to-RailOutput
  • LowPowerConsumption
  • Single-SupplyOperation:2.7V to 5.5V
  • I2C Interface: address 0x60
  • ExtendedTemperatureRange:-40°Cto+125°C

Include

• 1x DAC HAT
• 1x 2 Pin 3.96 Pitch Terminal

Application

• SetPointorOffsetTrimming
• SensorCalibration
• Closed-LoopServoControl
• LowPowerPortableInstrumentation • PCPeripherals
• DataAcquisitionSystems

Learn

Links

• Datasheet - MCP4725

Code

1. Arduino IDE

To get complete code, please click here.

#include <M5StickC.h> #include <Wire.h> #include "Adafruit_MCP4725.h" #define DAC_ADDR Adafruit_MCP4725 dac;  void setup(void) {     M5.begin(true,true,false);     dac.begin(0x60);     dac.setVoltage(2048, false);  }  void loop(void) {     // 12bit value , false mean not write EEPROM        dac.setVoltage(1024, false);     dac.setVoltage(2048, false);    }  

Pin Map

Video

Demo