Unit DAC
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
- Output 0~3.3V voltage GROVE interface, support UIFlow and Arduino
- Two Lego-compatible holes
Include
- 1x DAC Unit
- 1x Grove Cable
Applications
- MP3 Audio Player
- mini Oscilloscope
Specifications
| Resources | Parameter |
|---|---|
| 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)
PinMap
| M5Core(GROVE A) | GPIO22 | GPIO21 | 5V | GND |
|---|---|---|---|---|
| DAC Unit | SCL | SDA | 5V | GND |
Schematic
Related Link
- Datasheet - MCP4725
Model Size
Example
Arduino
The code below is incomplete (just for reference). To get the complete code, please click here
UIFlow
How to use Unit dac and related API instructions in the UIFlow2.0
Usage
