DFRobot
Gravity GP8600 1-Channel I2C/PWM 16-bit DAC Module
· MPN: DFR1229
This GP8600 module is a high-precision digital-to-analogue converter for connecting logic-level microcontrollers to industrial-style analogue control inputs....
This GP8600 module is a high-precision digital-to-analogue converter for connecting logic-level microcontrollers to industrial-style analogue control inputs. It accepts I2C or PWM signals and converts them for applications such as 0-5V, 0-10V and 4-20mA control.
It is designed for automation and control projects using boards such as Arduino, ESP32, Raspberry Pi and STM32. Typical uses include variable frequency drive speed control, 0-10V LED dimming, proportional valves, water pumps, lab signal generation and retrofitting older analogue equipment.
The module supports 8 adjustable I2C addresses, so up to 8 devices can be cascaded for multi-channel projects from a single controller interface. It uses the DFRobot Gravity PH2.0 interface and includes both a Gravity-4Pin I2C/UART sensor cable and a Gravity-3Pin analogue sensor cable.
Features:
- Signal conversion: Converts I2C or PWM input signals into stable 0-5V, 0-10V, or 4-20mA outputs
- High resolution: 16-bit resolution in I2C mode
- Industrial output support: Suitable for 0-10V voltage control and 4-20mA current loop applications
- Scalable addressing: Supports cascading up to 8 devices
- Adjustable I2C addresses: 8 adjustable I2C addresses
- Controller compatibility: Works with logic-level controllers like Arduino, ESP32, Raspberry Pi and STM32
- Gravity connection: Uses the standard Gravity PH2.0 interface
- Included cables: Gravity-4Pin I2C/UART Sensor Cable ×1
- Included cables: Gravity-3Pin Analog Sensor Cable ×1
Specifications:
- Chip Model: GP8600
- Operating Voltage: 3.3V-5V
- Power/Communication Interface: PH2.0-4Pin/3Pin
- Input Signal: I2C / PWM
- Current Output Range: 0-20mA
- Voltage Output Range: 0-6V / 0-12V
- Number of Channels: 1 channel
- Resolution: 16-bit (I2C mode)
- Resolution: 8-bit, 10-bit (PWM mode, selectable based on controller)
- Full-Scale Error: ±0.2% (measured after fitting calibration)
- Value Range (I2C Mode): 0-65535 corresponds to 0-6V, 0-12V, or 0-20mA
- Value Range (PWM Mode): 0-255 corresponds to 0-6V, 0-12V, or 0-20mA, 0-1023 corresponds to 0-6V, 0-12V, or 0-20mA
- PCB Dimensions: 38 × 32 × 12.39 mm
- Mounting Hole Spacing: 25mm
- Mounting Hole Diameter: 3.0 mm
A product wiki is available from DFRobot for setup information and project guidance.
Jargon buster
Plain-language definitions for the technical terms used above.
- ESP32
- ESP32 is a family of microcontroller modules with built-in wireless features such as Bluetooth and WiFi. Knowing this product uses an ESP32-based module helps explain how it provides wireless serial communication and firmware update features.
- Gravity
- Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- PCB
- A printed circuit board is a rigid board with copper tracks that connect electronic parts without loose wires. For this kit, the PCBs also form the airplane shape, so they are both the circuit base and part of the finished model.
- PWM
- Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.
- STM32
- STM32 is a family of microcontroller chips commonly used in embedded electronics. Knowing a product uses an STM32 can help when looking at firmware updates, pin connections, or low-level serial control options.
- UART
- UART is a simple serial connection that sends data over separate transmit and receive wires, often labelled TX and RX. It matters because this module is designed to replace a wired UART cable with a wireless link while keeping the same serial data format.
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Supplier page — dfrobot.com
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