October 22, 2013 /
Everyone usually agrees that home made gifts are usually more heart felt. So instead of buying a gift, Christian decided to make one for a friend. Not too far from a musical birthday card, the Birthday Box, will present a message to the receiver on an LCD screen, and sing the song happy birthday.
The Happy Birthday Box uses a piezo buzzer for a speaker generated by an Arduino. The text message is displayed on a standard 16×2 LCD screen, and powered by a battery pack. There is a small roller switch as well, I assume everything turns on / off when you open and close the box but it wasn’t specifically stated as the functionality.
Keep this project bookmarked, and add a few LEDs for that valentine of yours.
Check out a quick video after the break; Source code and more pictures on Christian’s blog.
October 14, 2013 /
When you hear the term Tricorder, you might think of Star Trek but I assure you, this is no toy prop. Keeping with the same concept of the Tricorder used on the TV show the Tricorder is about reading data, _lots_ of data. And that is what the Tricorder project aims to do, develop handheld devices that are fitted with lots of diverse sensors in order to observe them.
So far the project has produced a few different versions. The Mark 1, the Mark 2, etc. They are currently working on the Mark 5. Each version is pretty different from the other, and they all contain a wide variety of sensors such as atmospheric temperature, humidity, pressure and electromagnetic field, color, infra-red. And the obvious like GPS. They’re even working on developing their own sensors like this 3d printable mini spectrometer.
The project is open, and there are tons of pictures, and schematics on the tricorderproject’s web site.
October 7, 2013 /
Taking a ploy from the upcoming TouchID feature the new iPhone will have, Grant was inspired to make this really neat toy box for his son’s toy car collection.
You would think getting a fingerprint reader would be the most difficult part, but apparently Adafruit has ‘em for sale! So Grant got a fingerprint reader, a hobby servo, pushbutton, and some batteries and hooked it up to an Arduino UNO.
Looks like a fun project, especially for something like a jewelry box.
Check out the source code and other details on Grant’s site.
Check out the video after the break.
October 2, 2013 /
With the advances of shrinking technology it’s becoming more and more easier to roll your own every day items. Ever thought of making your own watch ? Sure you have, it was probably going to turn out larger than you anticipated too huh? How’s 1.5mm thick sound ? Sounds pretty good to me too. Zak has a really awesome writeup of him rolling his own watch.
The display is a 0.96″ OLED display (128×64 pixels), it uses a DS3231M RTC, 2 LEDs, a buzzer, a 3 way switch and runs off of a 150mah LiPo battery. Impressive! Features of the software include, window animations, up to 10 alarms, games, stopwatch, and flashlight mode.
Power consumption numbers are decent too. 6ua in sleep mode, and 10ma with normal on. That means depending on how much time you spend with the screen on will dictate how long your charge will last. This puts you anywhere between 15 hours and 3 years. With those sort of numbers and a modest use of your watch you should be able to get 15-30 days out of a single charge.
The Schematic and source code are available on Zak’s web site, a long with more photos of the build. Enjoy a video and a few more pics after the break.
September 27, 2013 /
With the advance of affordable 3D Printers, the home brew R/C vehicle community is booming with people making and designing their own parts. However, making your own RF controller is a different story.
Armed with a pair of Arduinos and nRF24L01 modules, Mujahed has a good start on one. On the transmitter side he’s reading a joystick module with an Arduino Uno and transmitting with one of the nRF24L01 modules. On the receiver side is another wireless module feeding an Arduino nano that is tied to a few servos. Everything on the car side is running off of a standard r/c car style 1800mAH battery.
More info and wiring diagrams on Mujahed’s site. Check out the video after the break.