Ready to use ESP-01 WIFI Board. On board 3.3v regulator & power indicator LED. Rx level converted to 3.3v , can be used directly with Arduino All GPIO pins extended using berg pins . RESET switch provided. CH-PD pin pulled high ESP-01 can be directly plugged on to this board ESP-01 to be purchased separately

USB to TTL module required to program firmwar on to ESP8266-01.