Keyestudio RPI PCF8591 AD/DA Functions Shield Expansion Board for Raspberry Pi<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Compatiple with Raspberry Pi 3，Uses I2C interface</li><li>Scales three groups IO ports， marked pin number， easy connection</li><li>Integrated AD-DA chip PCF8591， contains 4-channel 8-bit analog to digital converters and 1-channel 8-bit digital to analog converter</li><li>Through CE certification</li><li>Technical support：http://wiki.keyestudio.com/index.php/Main_Page</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51wNMXbC-TL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41Vr7mV0M6L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/4124fEBh%2BQL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/61paeqkHECL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51qYbjNh6GL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41FEbRZeeQL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/5160-vaQmuL.jpg" noproxy>