Diy IR Tester Keychain

the simple way to build an ir tester

Step 1: Schematic Diagram

all you need is a led, an ir receiver and a coin battery

the range is only 5-15cm (good to test a remote control)

Step 2: Print the .stl Files

print the .stl files or find a nice box for your project

Step 3: Make the Connections

make the connections and glue the led and the receiver with instant glue

Step 4: End

glue the two printed parts and add a coin battery

i use CR 2025

Thanks..!