I didn't know about esp-03 module.

I ordered that.

 

ROM v1.2(2015.05.03) : I deleted iot server access routine. - I think It is not necessary for this.

Do it at your own risk

youtube link :

http://youtu.be/iGYImJ0ARc8

 

Thanks.

 

Screenshot_2015-01-14-16-46-06.png 

 

 ===============================================================================

sdk version : 0.9.4

 

1. download my firmware.

   download mode gpio0 -> gnd

   ch_pd : always high

   gpio15 : always gnd.

 

 

2. use XTCOM_UTIL

com.png 

 open and connect.

 0x00000.png

 first dowload 0x00000.bin(eagle.app.v6.flash.bin)

 and taget reset.

 open and connect.

0x40000.png 

 second dowload 0x40000.bin(eagle.app.v6.irom0text.bin)

 

3. Circuit

 

Esp8266_pwm_sch.png 

<Recommended circuit.>

 

connect.png 

                                              <I tried this.>

 gpio15 : gnd

 ch_pd : vcc

 

4. Firmware

  AP mode

  SSID : ESP_XXXXXX

  password : 00001111

  Server IP : 192.168.4.1

 

5. Maybe Gpio15 pull down, Gpio02 pull up by 10k ohm,.

    Stable power is important.

    Frequency control is not working.(firmware issue)

20150128_212828.jpg 

<I use one diode with phone battery.>