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.

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… ...

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 ...

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 ...

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.

Now it's adding a 40-pin GPIO header on top of that and calling it, what else, the Raspberry Pi Zero WH. Now tinkerers and makers don't need to get their fingers burned immediately when just ...

With Opto-pi, there is not an electrical connection between the Raspberry Pi and connected loads (motors, relay coils, etc.) or input signals. Opto-pi uses light to isolate the 8 digital GPIO pins.

DIN rail mounts or mountable enclosures for the Raspberry Pi have been available for years with products such as the RailPi 2.0 enclosure or TerraPi’s DIN rail mount, but PlasmaDan’s DINPi RACK adds ...