243 GUIDES | 1373 PAGES | 1 FEATURED | 238 POPULAR
FORCE & FLEX
RFID / NFC
TEMPERATURE & HUMIDITY
Basic Resistor Sensor Reading on Raspberry Pi
Reading resistive sensors with RC timing
The best way to read analog sensors on a Pi is to use an external ADC like the MCP3008. But if you don't want to wire up an extra chip and you're OK with low-resolution sensing, you can read many sensors that act like resistors using the RC timing trick!
RFID language learning toy with sound
Create a speaking flash card game with Adafruit's wave shield and NFC/RFID shield for Arduino inside a box made to look like a yellow fish - a nod to Douglas Adams.
Adafruit NFC/RFID on Raspberry Pi
Add RFID/NFC read and write to your Pi in an hour!
Curious how you can add some NFC fun and excitement to your Raspberry Pi? It's easy with libnfc and this simple tutorial!
1488 tutorials and counting