Arduino Mega 2560 R3 Sensor Shield V2.0
""ESP8266 Serial WiFi Expansion Board Module for Arduino "
0.28 inch DC 100V 100A LED Digital Ammeter-Voltmeter With Shunt
0.56 inch Red 1 Digit 7 Segment LED Display 10pin
0.56 inch Red 4 Digit 7 Segment LED Display CC 12pin (2 pcs.)