Arduino Nerf sentry gun build: Motorized mount
What’s an Arduino Nerf sentry gun without a sweeping rotation? I knew I needed to add some motorized rotation to cover a wide field of (foam) fire, but how to mount the thing?
DIY Projects
DIY standoffs from nylon tubing
Curious Inventor posted this helpful tip for making your own standoffs on the cheap using 1/4″ nylon tubing. PCB standoff prices almost always make me grumble a bit – I’ll have to give this one a try sometime.
In the Maker Shed: Fashioning Technology
Fashioning Technology offers jargon-free primers and lots of how-to projects that will have you making — and even wearing — functional works of art. This book demonstrates how to blend sewing and assembly techniques with traditional electronics to assemble simple circuits using conductive thread, solder joints for snaps, and switches for buttons.
Minimal Lego iPad stand
The plot was to make the lightest, slimmer, and with the minimum lego pieces iPad stand. And the result is this one. Made with just 11 pieces of lego, and foldable.
How-To: Perfboard hackduino
Joe Saavedra writes: This tutorial will go through the steps involved in fabricating your own Arduino-compatible circuit using just ~$8 of parts (this includes the ATMega chip!). This is perfect for installing and embedding in permanent pieces , as you don’t need to waste a full $30 Arduino board in a project you will never […]
Arduino Nerf sentry gun build: Soldering the relay
The next step in making my autonomous Arduino Nerf sentry gun is to move the relay circuit from the temporary breadboard onto something more permanent.
Arduino Nerf sentry gun build: Relay firing circuit
I’m building an Arduino Nerf sentry gun. In the previous post, I showed how I wired and mounted the trigger connector. Next, I needed a circuit to fire the gun from the Arduino microcontroller. To me, the most straightforward way to do this is with a small, 5V relay wired to a digital pin and ground of the Arduino.
