July 2017
Beginner to intermediate
352 pages
7h 30m
English
We’ve looked at how we can use the computer’s microphone jack to look at the signals from the Espruino’s serial port, but what if we want to communicate without wires? First, let’s take a look at how we can use a PC’s audio input to receive signals from an infrared remote control.
You’ll need:
An IR receiver (HX1838, VS1838, TSOP348, or TSOP344) and remote control
A battery or battery back supplying between 3 and 5 volts (a CR2032 watch battery in a holder is perfect)
Breadboard
The headphone extension lead with a 3.5mm jack plug from “Experiment 17: Making an Oscilloscope”
2x 10k Ohm resistors
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