Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Wiring diagram schematic showing the GPIO wiring connections for the two Raspberry Pi devices. Channel A: data signal (from APD); Channel G: ground signal (from APD); Channel D: data signal; Channel T1: Rpi1 send/receive; Channel T2: Rpi2 send/receive; S: signal to be transferred.
