M5Stack DAC Converter Digital
Product Link
Description
DAC, is a unit with the ability to convert digital signal to analog signal (voltage waveform signal) with support for audio waveform and more. It integrates a 12-bit high resolution DAC chip named MCP4725 which has an on-board non-volatile memory (EEPROM). The unit communicates with the M5Core using the I2C protocol.
The DAC input and configuration data can be programmed to the EEPROM in order for the data to be saved after reboot or system shutdown.
The device I2C address is 0x60 by default unless changed manually.
Features
Up to 12 bits of resolution
Two Lego-compatible holes
Applications
MP3 Audio Player
mini Oscilloscope
Specification
Resolution
12 bit
voltage range
0-3.3V
Communication protocol
I2C: 0x60
Net weight
4g
Gross weight
19g
Product Size
32.2*24.2*10.3mm
Package Size
67*53*12mm
EasyLoader
What is EasyLoader?1.EasyLoader is a simple and fast program burner. Every product page in EasyLoader provides a product-related case program. It can be burned to the master through simple steps, and a series of function verification can be performed.
After downloading the software, double-click to run the application, connect the M5 device to the computer through the data cable, select the port parameters, click "Burn" to start burning. (For M5StickC burning, please Set the baud rate to 750000 or 115200)
Pinout
DAC Unit
SCL
SDA
5V
GND
Schematic
Related Link
Datasheet - MCP4725
Example
Arduino
The code below is incomplete (just for reference). To get the complete code, please click here
UIFlow
Feature Introduction
Perform DA conversion and output voltage, up to 3.7V
output voltage save Output voltage 0-3.3, and confirm whether to save to EEPROM
output voltage with raw data save Output voltage 0-4096, and confirm whether to save to EEPROM
Usage
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