MCP3208 8-Channel 12-Bit ADC IC — SPI Interface
Recognizer index -- max 7 voice commands could be supported in the recognizer
USB drive system software upgrade
USB host and client ports
Power: USB or external 3V/5V supply
Orange Pi Zero — Allwinner H2+, 512MB RAM, Wi-Fi, Ethernet, Linux SBC Water Level MCP3208 8-Channel 12-Bit ADC ICThe Orange Pi Zero is a compact, ultra affordable single board computer (SBC) from Shenzhen Xunlong Software, powered by the Allwinner H2+ quad core Cortex A7 processor. Despite its tiny footprint, it packs onboard Wi Fi, 100Mbps Ethernet, and a 26 pin GPIO header making it an excellent low cost platform for IoT gateways, embedded Linux development, and lightweight server applications. It runs Armbian, Ubuntu, and other community supported Linux