Gravity: GP8501 2-Channel PWM to 0-2.5V/VCC DAC Module
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Description
The Gravity: GP8501 is a dual-channel digital-to-analogue converter module driven by PWM signals from your microcontroller. Offering 8-bit resolution with selectable 0 to 2.5V or 0 to VCC output ranges, it is an ideal solution for makers and students working on automation, lighting, or motor control projects with 3.3V and 5V boards.
Dual-channel analogue voltage output
Powered by the GP8501 chip, this module provides two independent analogue output channels capable of delivering either 0 to 2.5V or 0 to VCC. This allows a single board to manage two separate analogue devices simultaneously, reducing overall project hardware costs.
Straightforward PWM communication
The module converts standard PWM signals directly from digital MCU pins into smooth analogue voltages. It integrates smoothly with Arduino UNO, ESP32, Raspberry Pi, and STM32 boards using standard Gravity interface connections.
Reliable 8-bit conversion accuracy
With an 8-bit resolution mapping values from 0 to 255, the module maintains an output voltage error under 0.5% and a linearity error of 0.1%. It operates stably across a 3.3V to 5V power supply range.
Practical control applications
This DAC module is suited for motor speed regulation, sound volume adjustment, and display backlight calibration. It also provides reliable analogue voltage control for indoor and outdoor lighting systems.
Package contents
The package includes one GP8501 2-Channel PWM to 0-2.5V/VCC DAC Module and one Gravity 3-pin analogue sensor cable for quick plug-and-play wiring.
Downloads & documentation
Specifications
| Operating voltage | 3.3V to 5V |
| Communication Method | PWM |
| Chip Type | GP8501 |
| Resolution | 8-bit |
| Output Voltage | 0-2.5V or 0-VCC |
| Number of channels | 2 channels |
| Value Range | 0 - 255 corresponding to 0-2.5V or 0-VCC |
| Output voltage linearity error | 0.1% |
In the box
| GP8501: 2-Channel PWM to 0-2.5V/VCC DAC Module ×1 | 1 |
| Gravity-3Pin Analog Sensor Cable ×1 | 1 |
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