By programming these into either input or output pins, you can turn them into a logical computer that can read inputs and show outputs. For example, you can connect an input pin to a pushbutton ...

The GPIO pins on the Raspi are arranged in a 2×13 header. Until Sparkfun manages to manufacture a decent Raspi protoboard, the easiest way to break these pins out is with an old IDE ribbon cable.

This page explains the current capabilities of the Raspberry Pi GPIO pins. It is applicable to all models up to and including the 3B+ model. The main thing to note is that the GPIO drive strengths do ...

Here’s a Raspberry Pi hack that adds web control using PHP and MySQL. As you can see in the image, it serves up a webpage (using the Apache2 server) which allows you to change the state of th… ...

Fortunately, the Raspberry Pi has all the above circuitry built in. It can be helpful to imagine that the two resistors `R1` and `R2` from the diagrams above are inside the circuitry of the Raspberry ...

The Raspberry Pi has been very popular among hobbyists and educators ever since its launch in 2011. The Raspberry Pi is a credit-card-sized single-board computer with a Broadcom BCM 2835 SoC, 256MB to ...

SB Components’ StackyFi is an ESP32-S3 WiFi and Bluetooth IoT board with a 40-pin GPIO header compatible with most Raspberry Pi HAT expansion boards and a camera connector for image capture to a ...

Let’s begin our btferret.c modification by adding the include file lgpio.h to the btferret.c source code as shown in Figure 2. The LED we want to blink is attached to the Raspberry Pi 5’s GPIO 17.