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Overhead shot of I2C to 4-20mA converter module for Arduino with green/red terminals and microcontroller-DFRobot product sku:DFR0972 image.
Overhead shot of I2C 4-20mA DAC module for Arduino with labeled components and dimensions
Front of I2C 4-20ma transmitter module for Arduino
Front of I2C 4-20mA DAC module with LEDs and wires showing current output interface
Front of green terminal block for I2C 4-20mA output module compatible with Arduino.
Front of I2C 4-20mA DAC module with Arduino output calibration markings.
Overhead shot of Gravity I2C 4-20mA DAC Module for Arduino output and I2C to 4-20mA converter
Angled shot of I2C 4-20mA DAC module with green terminals for Arduino current output.
Angled shot of front of I2C 4-20mA DAC module with relay and wires showing Arduino compatible current loop output

Gravity: I2C 4-20mA DAC Module (Arduino Compatible)

$9.90
SKU: DFR0972
Volume Discount
  • $9.70 3+ items
  • $9.50 5+ items
  • $9.20 10+ items
An I2C DAC module outputs 0-25mA current, with accurate 4-20mA after calibration, compatible with Arduino, and useful for devices like motors and pumps.
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IntroductionSelection GuideFeaturesApplicationsSpecificationDocumentsShipping List Resource FAQ Review

Introduction

This is an I2C DAC module that outputs 0–25mA current. It provides accurate 4–20mA current output after calibration, making it suitable for controlling industrial devices such as motors, inverters, valves, and pumps via Arduino or other microcontrollers.

Designed to convert digital signals into standard 4–20mA industrial control signals, this module serves as a bridge between microcontroller platforms and industrial systems.

With I2C communication and provided sample code, users can easily control the output current by setting digital values, enabling quick integration into automation and control projects.

This DAC module requires an external 18–24V power supply for proper 4–20mA loop operation.

I2C 4-20mA DAC module

Function Indication


Hardware Connection

Click here to get Selection Guide of DAC Modules

Selection Guide

DFRobot Gravity DAC Module Selection Guide

Product Name
Gravity: I2C 12-Bit DAC Module
Gravity: 2-Channel I2C DAC Module (0-10V)
Gravity: I2C 4-20mA DAC Module (Arduino Compatible)
Gravity: GP8211 I2C 15-bit DAC Module (0-5V/10V)
Gravity: GP8101S 1-Channel PWM to 0-5V/10V DAC Module
Gravity: GP8501 2-Channel PWM to 0-2.5V/VCC DAC Module
Gravity: GP8413 2-Channel 15-bit I2C to 0-5V/10V DAC Module
Gravity: GP8512: 1-Channel 15bit I2C to 0-2.5V/VCC DAC Module
Gravity: GP8630N I2C/PWM to ±10V / 4-20mA DAC Module (16-bit)
Gravity: GP8503 2-Channel 12bit I2C to 0-2.5V/VCC DAC Module
Gravity: GP8600 1-Channel I2C & PWM to 0-5V / 0-10V / 4-20mA DAC Module (16-bit)
Figure
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SKU
DFR0552
DFR0971
DFR0972
DFR1071
DFR1036
DFR1037
DFR1073
DFR1035
DFR1230
DFR1034
DFR1229
Add to Cart
Description
I2C 12-Bit DAC
2-Ch 0-10V DAC
4-20mA Current DAC
1-Ch 15-Bit (0-10V)
1-Ch PWM (0-10V)
2-Ch PWM (0-2.5V)
2-Ch 15-Bit (0-10V)
1-Ch 15-Bit (0-2.5V)
Hi-Res ±10V / 4-20mA
2-Ch 12-Bit (0-2.5V)
Hi-Res 0-10V / 4-20mA
Comm.
I2C
I2C
I2C
I2C
PWM
PWM
I2C
I2C
I2C/PWM
I2C
I2C/PWM
Res.
12-bit
12-bit
12-bit
15-bit
8-bit
8-bit
15-bit
15-bit
16-bit
12-bit
16-bit
Channels
1
2
1
1
1
2
2
1
1
2
1
Output Range
0~VCC
0-10V / 0-5V
4-20mA (0-25mA)
0-10V / 0-5V
0-10V / 0-5V
0-2.5V / 0-VCC
0-10V / 0-5V
0-2.5V / 0-VCC
±10V, 0-10V, 4-20mA
0-2.5V / 0-VCC
0-10V, 0-10V, 4-20mA
Chip
MCP4725
GP8403
GP8302
GP8211S
GP8101S
GP8501
GP8413
GP8512
GP8630N
GP8503
GP8600
Key Features
Classic model, with EEPROM, cost-effective
Dual-channel industrial voltage, cascade up to 16 devices
Industrial current loop, requires 18-24V power
High precision (0.01%), single channel
PWM driven, easy to use, industrial voltage
PWM driven, dual channel, low voltage control
High precision, dual channel, industrial voltage
High precision, single channel, low voltage control
Flagship, supports bipolar (negative voltage) output
Medium precision, dual channel, low voltage control
16-bit ultra-high precision, multi-function all-in-one

Features

  • 0-25mA output, more accurate current within 4-20mA available after calibration
  • Gravity interface, I2C communication
  • High accuracy, 0.2% linearity error
  • 18-24V power supply

    • Applications

  • Function signal generator
  • Automatic controller for lighting or fountain
  • Automatic and quick transformation of small equipment
  • Electromechanical equipment debugging
  • Transformation of small test device

    • Specification

  • Chip Type: GP8302
  • Input Signal Range: 12Bit, 0x000-0xFFF (0-25mA)
  • Input I2C Signal High Level: 2.7V-5V
  • Power Supply: 18V-24V (24V recommended)
  • Accuracy: 0.5% before calibration, 0.2% after calibration
  • Power Consumption: ＜5mA
  • Start-up Time: ＜2ms
  • Operating Temperature: -40°C to 125°C
  • Load Resistance: Maximum 450Ω load capacity for 18V power supply, maximum 750Ω for 24V
  • Output Current: 0-25mA
  • I2C Address: 0x58

    • Documents

    Shipping List

  • Gravity: I2C 4-20mA DAC Module (Arduino Compatible) x1
  • Gravity I2C/UART Sensor Connector x1

    • Resource

    AllProjectsBlogTutorialCourseMedia
    Selection Guide of DAC Modules

    Blog Selection Guide of DAC Modules

    DFRobot
    Oct 25, 2023

    FAQ

    Explore More Related Questions >

    Review

    Gareth.Carr Feb 13, 2026

    Works great giving accurate readings

    LARRY.SCHRIMPF Oct 12, 2023

    Extremely accurate when used with calibration. Recommended for any 4-20mA output needs.

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    Gravity: I2C 4-20mA DAC Module (Arduino Compatible)
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