DFRobot
DFRobot是机器人与开源硬件提供商，致力于提供用户友好的创新型产品，打造知识型创客社区。该公司还是中国最早的创客理念和创客文化的引入者和倡导者之一。DFRobot特色产品
Gravity: GP8630N I2C/PWM DAC Module
High-precision 16-bit digital-to-analog converter that converts I2C and PWM signals into outputs.
Gravity: GP8600 I2C/PWM DAC Module
16-bit DAC designed to convert I2C or PWM digital signals into standard industrial analog outputs.