DFRobot
Gravity: GP8503 2-Channel 12bit I2C to 0-2.5V/VCC DAC Module
· MPN: DFR1034
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##Introduction This is a 2-channel analog voltage output DAC module with I2C communication, 12-bit resolution, and 0.1% precision. It is well-suited for cont...
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##Introduction This is a 2-channel analog voltage output DAC module with I2C communication, 12-bit resolution, and 0.1% precision. It is well-suited for control projects operating within the 3.3V range, such as ESP32, Raspberry Pi, STM32, and other microcontrollers that require analog signal output.DAC series modules are a range of products that can be controlled through I2C or PWM signals to generate voltage or current output signals. This series of DAC products not only offers a variety of output signal ranges, but also provides three selectable resolutions: 8-bit, 12-bit, and 15-bit. It allows for the choice of either single-channel or dual-channel configurations, and multiple modules can be cascaded to form a multi-channel output.Functional Diagram of Gravity: GP8503 2-Channel 12bit I2C to 0-2.5V/VCC DAC ModuleWiring Diagram of Gravity: GP8503 2-Channel 12bit I2C to 0-2.5V/VCC DAC Module and Arduino UNOWe provide various models of DAC modules. If you need a different model, please check the selection guide:Click here to get Selection Guide of DAC Modules ##Features Support 3.3V-5V power supply.Output voltage error is less than 0.1%.Output voltage linearity error is 0.1%.Two channels of voltage output, either 0-2.5V or 0-VCC, enabling connection and control ofstandard analog voltage devices.Gravity interface, I2C communication, Arduino control, suitable for program automationcontrol. ##Applications Motor rotational speed regulationSonorous intensity modulationIndoor and outdoor luminance modulationDisplay panel backlight automatic adjustment ##Specification Operating voltage: 3.3V to 5VCommunication Method: I2CChip Type: GP8503Resolution: 12-bitOutput Voltage: 0-2.5V or 0-VCCNumber of channels: 2 channelsValue Range: 0 - 4095 corresponding to 0-2.5V or 0-VCCOutput voltage: 0.1%Output voltage linearity error: 0.1% ##Documents Product wiki ##ShippingList GP8503:2-Channel 12bit I2C to 0-2.5V/VCC DAC Module ×1Gravity-4P I2C/UART Sensor Cable × 1
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Plain-language definitions for the technical terms used above.
- 12-bit resolution
- 12-bit resolution means the sensor’s measurement is divided into 4096 possible digital values. Higher resolution can make small changes in motion or tilt easier to detect, as long as the sensor range and noise are suitable for the project.
- DAC
- A digital-to-analogue converter turns numbers from the microcontroller into a real analogue voltage. It matters if you want to generate simple waveforms, audio-style signals, or variable control voltages rather than just on/off outputs.
- 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.
- 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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