Control your power outlets from the comfort of your sofa with this Raspberry Pi hack ...

The caps store just enough power that when the main supply is cut, a GPIO notices, tells the Pi, and it begins a shutdown sequence lasting about 30 seconds.

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.

If you have a Raspberry Pi project that you want to take on the go, you have a few different options for power. Here are the choice available.

The Raspberry Pi 3 Model B+ features 1 GB of LPDDR2 RAM, 40-pin GPIO expansion header, full-sized HDMI port, four USB 2.0 ports, a CSI camera port ready and waiting for the Pi camera module and a ...

Posted in Raspberry Pi Tagged gpio, power supply, RPi ← Open Source Brushless Motor Controller Homebrew 68k Extravaganza → ...

How to maintain the time even when the power is off using the RTC function of Raspberry Pi 5. The time can be maintained even offline, which is convenient for remote monitoring etc.

One of the biggest draws of the Raspberry Pi family of single board computers or SBCs is their expandability. That comes via the standard 40-pin GPIO header on the full-sized boards.

Revised Raspberry Pi 5 chip comes with unexpected power savings What we don't know is whether 4GB or 8GB Pis will get the tweaked chip design.