** Pinouts for Arduino and co **

Arduino Uno

http://www.pighixxx.com/test/pinoutspg/

{{:arduino_uno_pinout_web.png?300|}}

ESP 8266 JoyIt

Pinout Backside Long Side face right
<code>

TX    O O GND
CH_PD O O GPIO2
RST   O O GOIO0
VCC   O O RX
</code>