Do it at your own risk.

ROM v1.1(2015.05.02) : I deleted iot server access routine. - I think this is not necessary for this.

It will be a last esp8266 project.

App:

https://play.google.com/store/apps/details?id=kr.co.tskit.ESP8266ACS712

Video:

https://www.youtube.com/watch?v=RUSSV3ZKiW8

I'm not a hardware engineer, So I don't have a oscilloscope.

Now I changed 0.1uF to 1uF.

I changed 1uF to 47uF.

Circuit

Adjust 10k resistor to 0.5v/0A

ACS712   : 2.5V -> 0A | 3.5V -> 5A

ESP8266 : 0.5V -> 0A | 0.7V - > 5A

220V 5A = 1100W

I went to my neighborhood.

acs712 normal out wave

Test and changed to 47uF

1. Referrence : http://tskit.co.kr/zbxe/download/2777

    download my firmware.

2. use XTCOM_UTIL

 baudrate 115200

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

 and taget reset.

 open and connect.

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