3 ms·
RasPis have GPIO pins. With even the most basic soldering and the simplest circuit, you can use a relay to turn on low voltage devices like blinkenlights or buz
by noonespecial 15y ago
RasPis have GPIO pins. With even the most basic soldering and the simplest circuit, you can use a relay to turn on low voltage devices like blinkenlights or buzzers. A tiny bit of extra study will get you motors and servos.
Flipping a bit on a GPIO is as simple as echo-ing a 1 or 0 to a file in dev.
Awesome is made of solder, my friend.
- chrisacky 15y agoThey have two GPIO pins right? But I can still only flip it to either on or off. So while it would be useful for something like turning on a single light, I'm not sure how I could use the GPIO pins to send say a number of users currently subscribed or something similar?