Tiny board that allows you to connect the Baofeng UV5R radio to a smartphone or other device that uses a TRRS connector for audio.
if you can't find one for a reasonable price, you can make your own: https://github.com/johnboiles/BaofengUV5R-TRRS
NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.
HELP! How many layers for PCB
1 project | reddit.com/r/PrintedCircuitBoard | 24 Jan 2022
PCB help - Can I get a pcb from files I found
1 project | reddit.com/r/PrintedCircuitBoard | 28 Dec 2021
What kind of synth is this?
1 project | reddit.com/r/synthesizercirclejerk | 19 Dec 2021
My pocket chip has a broken key.
1 project | reddit.com/r/ChipCommunity | 7 Dec 2021
Stanford Researchers Build $400 Self-Navigating Smart Cane
1 project | news.ycombinator.com | 19 Oct 2021