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The Boardoza GP8403 DAC Board is a high-precision dual-channel digital-to-analog converter (DAC) breakout board designed for applications requiring accurate analog voltage generation from digital signals. Based on the GP8403, the board provides two independent 12-bit analog output channels that can be controlled over the I²C communication interface.
Supporting both 0–5V and 0–10V selectable output ranges, this breakout board is ideal for industrial automation, signal generation, lighting control, motor control, programmable analog outputs, PLC interfacing, laboratory equipment, and other embedded systems requiring reliable analog voltage outputs.
| Front Side | Back Side |
|---|---|
Model: GP8403
Manufacturer: Boardoza
Manufacturer IC: Shenzhen Keyi Electronics
Functions: Dual-channel Digital-to-Analog Converter (DAC)
DAC Resolution: 12-bit
Communication Interface: I²C
Supply Voltage: 3.3VDC – 12VDC
Output Voltage: Selectable 0–5V / 0–10V by register
Maximum Output Current: Up to 20mA per channel
Output Voltage Accuracy: ±0.5% (typical)
Supported I²C Devices: Up to 8 on a single bus
Operating Temperature: -40°C to +85°C
Board Dimensions: 40mm × 20mm
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | VCC | Power Supply (3.3VDC–12VDC) |
| 2 | SCLK | I²C Serial Clock |
| 3 | SDA | I²C Serial Data |
| 4 | GND | Ground |
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | OUT0 | Analog Voltage Output Channel 0 |
| 2 | GND | Ground |
| 3 | OUT1 | Analog Voltage Output Channel 1 |
This repository contains both hardware and software components:
All hardware design files are licensed under Creative Commons Attribution-ShareAlike 4.0 International License.
All software and firmware are licensed under BSD 3-Clause License.
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