Preparation for start of experiments with ESP8266

In this blog I want to share  my findings with Wifi module ESP8266. I have the feeling that this cheap module will become an important enabler for home IoT applications (prices of this chip family starts from 3€).
There are several chip models with different number of breakout pins available (ESP-01 ..ESP-12). For easy beginning I decided to start with a development board providing all interfaces for flashing firmware and application software as well some sensors (DHT-11 temperature, humidity)and actuators (relay, RGB-LED). The ESP8266 can be concidered as complete “system on chip” containing a microprocessor (80MHz), storage and Wifi communication.
I ordered 3 parts from ebay dealers in China:
– The standard ESP8266 ESP-01 module (2,80€)
– A develop board ESP-201 with module ESP-201 (with external antenna) for 13€
– USB-to-TTL adaptor

ESP8266_ESP-01 ESP-201_DevBoard USB_TTL_Adapter
Before receiving the parts I checked for helpful blogs and wikis in the internet for reading technical information:
Blogs for Development board

Blogs for ESP8266 ESP-201 module

Blogs/Wiki for ESP8266 default module (ESP8266 community forum) (ESP8266 community wiki)  (in German)

Overview about model versions

Due to this huge amount of information it is not necessary to describe more technical details. I want to focus to my findings in first experiments with ESP8266…

One thought on “Preparation for start of experiments with ESP8266

  1. how to flash esp201 for use AT Command ?
    what primary baud rate in esp201?
    how to connect esp201 to arduino and control led?
    thank you


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