Connecting to Bittle through WiFi?

Hello, I'm trying to connect to Bittle using the included WiFi adapter but I'm facing some difficulties.

First, of all, I have no previous knowledge about connecting to these kind of devices; I'm making assumptions about how it works.

From what I've seen, the WiFi adapter uses a ESP-WROOM-02D module, that is based on ESP8266.

It seems to be working as a Soft Access Point, so, in order to control Bittle:

· I have to connect to the WiFi Network that appears as ESP-XXXXXX when I turn on Bittle.

· To control Bittle, I have to send the commands to the ESP8266 module, which will comunicate through serial connection with Bittle (am I right?).

Once I connect to "Bittle's network", it starts making some noises periodically. At this point is where I don't know how to proceed.

I have checked that I have connection to Bittle's ip (ok).

I have tried to access to Bittle's ip from a web browser, but it shows ERR_CONNECTION_REFUSED.

FYI: When I try to use the IR remote controller, Bittle beeps several times quickly but doesn't react.

What should I do next in order to send commands (e.g. 'kbalance') and receive Bittle's response? (I'm planning to send the commands using python, but any kind of guidance will be appreciated).