There’s no AD/DA function on the Raspberry Pi GPIO interface, this may trouble you in the Pi development. However, it won’t be a problem anymore. The High-Precision AD/DA Board allows you to add high-precision AD/DA functions to the Raspberry Pi

What’s on Board

• Raspberry Pi GPIO interface: for connecting with the Pi
• AD/DA input/output : screw terminals
• AD input: pin headers, the pinout is compatible with Waveshare sensor interface standard, easy to connect various analog sensor modules
• 7.68M crystal
• LM285-2.5: provides the reference voltage for the ADC chip
• Photoresistor
• LED output indicator
• 10K potentiometer
• DAC8552 : 16bit high-precision DAC, 2ch
• Power indicator
• ADS1256 : 24bit high-precision ADC, 8ch (4ch differential input)
• ADC testing jumper
• DAC testing jumper
• Power selection jumper
• ADC reference ground configuration: when AD single inputted, the AINCOM is reference terminal, can be connected to GND or external reference voltage

Features:

• Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano.
• ADS1256, 8ch 24bit high-precision ADC (4ch differential input), 30ksps sampling rate.
• DAC8552, 2ch 16bit high-precision DAC.
• Input interface via pin headers, for connecting analog signal.
• The pinout is compatible with the Waveshare sensor interface standard, easy to connect various analog sensor modules.
• Onboard input/output interface via screw terminals, for connecting analog/digital signal.
• Features AD/DA detect circuit, easy for signal demonstration.

Package Includes:

• 1 x High-Precision AD/DA Board
• 1 x RPi screws pack (2pcs)