Get to grips with analog electronic control

YOU’LL NEED THIS

• Any model of Raspberry Pi

• Raspberry Pi OS

• RasPiO Analog Zero

• A breadboard

• An LED

• 10K Ohm potentiometer

• 330 Ohm resistor (orange-orange-orange-gold)

• 3x F2M jumper wires

• 1x M2M jumper wire

• Code https://github.com/lesp/ LXF-Analog-Zero/archive/refs/heads/main.zip

Electronics are all digital, right? Nope – some electronics components work with analog signals. These signals are continuously running and are typically a variable voltage. Such components include thermistors (a variable resistor whose resistance varies depending on temperature) and photosensors (a variable resistor whose resistance changes depending on light levels).

The most common analog electronic component is the potentiometer. This is a variable resistor that changes resistance based on the user turning a knob. A common potentiometer has a value of 10 Kiloohm (10K) and it can be found in many electronics kits. However, you can’t directly wire