MCP2551 CAN Bus Transceiver IC Gravity Sensor the main claim to fame

the main claim to fame for the ESP8266 processor over the AVR processor of the standard Arduino is that it has a larger 4 MB of Flash memory runs at clock speeds of 80 MHz and can sometimes optionally be overclocked to 160 MHz and therefore has a very fast processing speed

Process control systems

Recognizer index -- max 7 voice commands could be supported in the recognizer

Arduino's have built in voltage sensors

MCP2551 CAN Bus Transceiver IC Gravity Sensor the main claim to fameMCP2551 CAN Bus Transceiver IC ISO 11898 Compliant The MCP2551 is a high speed, fault tolerant CAN bus transceiver from Microchip that interfaces a CAN protocol controller to the physical CAN bus. Fully compliant with ISO 11898 (including 24V requirements), it supports data rates up to 1 Mb s. Key Features CAN bus transceiver ISO 11898 compliant Maximum data rate: 1 Mb s Differential transmit and receive capability Fault tolerant design Supports 24V