This article is for my entry to Pi Zero contest 2016.
https://hackaday.io/project/9526-bring-your-own-pizero-byop
Connection diagram v0.3 (2016 Feb 14).
![](http://yuml.me/diagram/class/[PiZero{bg:red}]USB5V<--[USB HUB],[5V PWR or battery]USB5V-->[USB HUB],[USB HUB]-->USB5V[Three terminal regulator],[Three terminal regulator]3.3V-->[ESP8266{bg:red}],[ESP8266]I2C<-->[AQM0802(LCD 8x2)],[ESP8266]<-->UART3.3V[PiZero])