Adafruit EMC2101 I2C PC Fan Controller and Temperature Sensor (STEMMA QT / Qwiic) witty pi 4 mini E220-400T22S/E220-900T22S is a new generation

E220-400T22S/E220-900T22S is a new generation of LoRa wireless serial port module (UART)

SB Components developed Raspberry Pi Pico 2 Breadboard Kit with advanced features like independently controllable LEDs

Colour: Brick Road Yellow

Ultrasonic & IR sensor support

body-cover

Adafruit EMC2101 I2C PC Fan Controller and Temperature Sensor (STEMMA QT / Qwiic) witty pi 4 mini E220-400T22S/E220-900T22S is a new generationCooling fans They're everywhere, and they serve the important purpose of keeping things cool, generally electronics. One might rightfully think: "these fans are pretty good at moving air to keep things cool; maybe I can use one of these neat computer fans to keep my widget frosty" followed closely by throwing up one's hands in confusion at the sight of a 3 or even 4 pin connector. OK, power takes two pins but what are these other pins for and how do I