Arduino • Basics
What & Why
Arduino is a microcontroller ecosystem great for rapid prototyping: digital inputs/outputs, PWM, serial (UART/I²C/SPI), with a huge library ecosystem.
- Power: USB/5V, VIN up to 12V
- I/O: digital, analog, PWM
- Comms: UART, I²C, SPI
- IDE: Arduino IDE / PlatformIO
Quick Check (5)
Which protocol is 2-wire with addressable devices?
Typical Uno logic voltage is…
PWM is mainly used to…
SPI uses how many main signal lines (excluding power/ground)?
Best interface for multiple sensors over short distance?
Discussion
This is a local demo. Hook to Supabase/Firestore later to persist.
Popular Arduino Parts
Links are examples. Replace with your affiliate URLs when ready.
Arduino help available in Beirut, Lebanon • Remote worldwide.