Initially I started with issuing AT commands from my laptop to the WiFi module. To do this I brought a USB to TTL serial adapter.
Pairing ESP8266 and the USB-TTL adapter wasn't very simple , due to two reasons
- ESP8266 may draw around 300mA in high power modes, but the adapter was capable of providing max of 150mA 3.3V.
- WiFi module and serial adapter are working on different Logic levels (ESP8266 - 3.3V and USB-TTL - 5.0V )
I chose arduino serial monitor to interact with the module with below configuration.
Line mode = NL & CR Baud Rate = 9600