Gravity GP8600 I2C PWM 1-Channel DAC Module 0-10V 4-20mA

The DFRobot Gravity DFR1229 is a 16-bit digital-to-analog converter module based on the GP8600 chip, which converts I2C or PWM digital signals into standardized industrial analog outputs. The supported output ranges are 0–5 V, 0–10 V, and 4–20 mA, with a total range error of ±0.2%. The module bridges the interface between microcontrollers like Arduino, ESP32, or Raspberry Pi and industrial devices such as variable frequency drives, proportional valves, and PLC systems.

Recommended Accessories:

• FireBeetle 2 ESP32-E IoT Development Board 16M Flash 2M PSRAM
• Gravity 16Bit 4-Channel ADC Analog to Digital Converter I2C ADS1115

Features:

• 16-bit resolution with ±0.2% total range error for high-precision analog control in industrial and laboratory applications
• Configurable output ranges: 0–5 V, 0–10 V (voltage output), and 4–20 mA (current output) for standard industrial interfaces
• Up to eight I2C addresses configurable – simultaneous operation of eight independent channels on a single I2C bus
• Dual input control: I2C for precise microcontroller integration or PWM for simple duty-cycle control
• Operating voltage 3.3–5 V with integrated level shifting; Gravity PH2.0 connector for plug-and-play in the DFRobot ecosystem
• Compatible with Arduino, ESP32, STM32, and Raspberry Pi; example code available for I2C mode and PWM mode

Application Examples:

• Speed control of variable frequency drives (VFD) via 0–10 V control signal for variable motor control
• Flicker-free brightness control of 0–10 V LED drivers in lighting automation systems
• Precise position control of 4–20 mA proportional valves in hydraulic and pneumatic applications
• Laboratory analog signal generator replacement for sensor and circuit testing with defined output voltage profiles
• Industrial IoT control: Raspberry Pi or ESP32 controls 0–10 V industrial actuators without external signal converters

Documentation:

• DFRobot Wiki – GP8600 DAC Module

Specifications:

• Manufacturer: DFRobot
• Manufacturer SKU: DFR1229
• DAC Chip: GP8600
• Resolution: 16 Bit
• Output Ranges: 0–5 V, 0–10 V, 4–20 mA (configurable)
• Total Range Error: ±0.2%
• Input Control: I2C, PWM (min. 1 kHz)
• I2C Addresses: 8 configurable (multi-module cascading)
• Operating Voltage: 3.3–5 V
• Interface: Gravity PH2.0-4P
• Compatible Platforms: Arduino, ESP32, STM32, Raspberry Pi
• Package Dimensions: 61 × 56 × 25 mm
• Gross Weight: 21 g

Package Contents:

• 1× Gravity GP8600 I2C PWM 1-Channel DAC Module 0–10 V 4–20 mA
• 1× PH2.0-4P Cable