HackerSpaceTech

Added a second joystick to the shield and use one for forward/back motion and the other for turning.  I find this setup gives better control.

Jeff Branson, from Sparkfun, saw my project on facebook and suggested I submit it to Sparkfun to be added to their project section.  I ...

This shield provides the necessary connections between the joystick and the Arduino so that it can read the joysticks X, Y and Switch readings on it's analog inputs.  I chose to mount the joystick on it's own proto shield instead of mounting it to the prototype area of ...

Video explaining what multiplexing is, why we do it and how it is done.  Covers using the Arduino to handle the multiplexing and using a 7219.  Using the 7219 we can control up to 8 seven segment displays while using only 3 pins from the Arduino.  The 7219 also handles ...

Made use of The Forge makerspace at North Branch library to construct my first Arduino Shield. This shield adds 7 Status LEDs, an Infra Red LED, an Infra Red Receiver and a piezo buzzer.

Signal processing is handled by a great Arduino library written by Ken Shirriff and allows you ...

Expanding on my experiment with the MAX7219 controlling an 8x8 LED Matrix I added a second one. Both of the 8x8 displays and controllers were part of kits that couldn't fit neatly side by side, but the concept can still be demonstrated.

Using the circuit layout of the MAX7219 ...

Using a Maxbotix Range Finder, Kevin Dahhar show you how to make a circuit that helps you back your car up into the garage, and put the Arduino into a super low power sleep when the circuit is not needed.

The Arduino only runs off of batteries and because it ...

I popped the MAX7219 and 8x8 LED Matrix from the kit and made it a little more social (watch video to see what I mean).  Using the MAX7219 requires only 3 pins from the arduino, a couple capacitors and resistor.  All the multiplexing is handled by the chip.  When writing ...

Last night I put together the Nootropic design 16x32 RGB backpack from  Adafruit to power a 16x32 display also obtained from Adafruit.

The backpack kit is only $12.95 at the time of this writing. connects to the back of the Adafruit 16x32 RGB LED Matrix Panel and is a ...

After reading up on Project #21: Creating an LED Matrix in The Arduino Workshop I set out to find a 8x8 common cathode led matrix.  I saw this MAX7219 8X8 Red Dot LED Matrix on Amazon and while I was looking to experiment with using two 74HC595's to control ...

My last experiment was with the three 74HC595s I was using to create the Knightrider effect on 24 leds. In this experiment I am going to add another 74HC595 and use all four to control four common-cathode seven-segment LED displays.

To duplicate this setup you will need the following hardware ...