There are a number of pins that have incorrect GPIO designation in the pinout drawing, compared to the actual board (and schematics). Examples are Rx and Tx pins which should be GPIO38 & 39, the ...

Arduino UNO Sensor Shield V5 is an unofficial shield designed for Arduino UNO. It is quite handy for interfacing with 5.0V peripherals such as potentiometers, proximity sensors, etc. I could not find ...