Quantity   Component name
1 × ESP8266 ESP-01 Board in V1 & V2 , + in V3 ESP-03 & ESP-07
1 × USB-TO-TTL Programer CP2102
1 × Eagle designed Basic Board one layer PCB
1 × Standard parts 2,54 mm Power plug, Resistor, Led, Pinheader, Push button,
1 × Bug converter 3,3 V LM2596S
1 × SMD Mini USB in V2
1 × Levelshifter +5V / 3V3
1 × LED 3mm / 5mm