Repairing and Reviewing a 1976 PONG Clone

Hackaday alum [Todd] has been searching for an old PONG clone for the last two years. This variant is called, “The Name of the Game”. [Todd] has fond memories of playing this game with his sister when they were young. Unfortunately, being the hacker that he is, [Todd] tore the game apart when he was just 14 to build his own Commodore 64 peripherals. He’s been wanting to make it up to his sister ever since, and he finally found a copy of this game to give to his sister last Christmas.

After opening up the box, [Todd] quickly noticed something strange with the power connector. It looked a bit charred and was wiggling inside of the enclosure. This is indicative of a bad solder joint. [Todd] decided he’d better open it up and have a look before applying power to the device.

It was a good thing he did, because the power connector was barely connected at all. A simple soldering job fixed the problem. While the case was still opened, [Todd] did some sleuthing and noticed that someone else had likely made repairs to several other solder joints. He also looked for any possible short circuits, but everything else looked fine. The system ended up working perfectly the first time it was started.

The end of the video shows that even after all this time, simple games like this can still capture our attention and be fun to play for hours at a time. [Todd] is working on part 2 of this series, where he’ll do a much more in-depth review of the system. You can watch part 1 below. Continue reading “Repairing and Reviewing a 1976 PONG Clone”

Capacitive Christmas Organ with Living Lenses of Slappable Light

We’ve seen capacitive touch organs manifest in pumpkin form. Though they are a neat idea, there’s something about groping a bunch of gourds that stirs a feeling of mild discomfort every time I play one. [mcreed] probably felt the same way and thus created this light-up Jello organ, so he can jiggle-slap Christmas carols, removing any sense of doubt that touching food to play music is weird…

This take on the capacitive tone producing instrument makes clever use of the transparent properties of Jello as well as its trademark wiggling. [mcreed] fills several small mold forms with festively colored strawberry and lime mix. One end of a wire connection is submerged in the liquid of each cup before it has a chance to solidify along with a bright LED. Once chilled and hardened, the gelatinous mass acts as a giant light emitting contact pad. An Arduino is the micro-controller used for the brain, assigning each Jello shape with a corresponding note. By holding onto a grounding wire and completing the acting circuit, one can play songs on the Jello by poking, spanking, or grazing the mounds.

Though I’m not entirely sure if the video is Jello propaganda or not, the idea is applaudable. I prompt anyone to come up with a more absurd item to use for a capacitive organ (zucchinis have already been done).

Continue reading “Capacitive Christmas Organ with Living Lenses of Slappable Light”

Hacklet 27 – Holiday Hacks

It’s beginning to look a lot like the holidays around here. That means it’s time for holiday hacks here on The Hacklet! This week we’re looking at the coolest festive hacks created by YOU on Hackaday.io!

xmashdrWe start with [charliex] and Cypress PSOC 4 + ESP8266 WS2812 RGB XMAS Lights. The name might be a mouthful, but the goal of the project is a simple one: Awesome Christmas lights! [Charliex] has created WiFi controllable Christmas lights. To do this, he’s utilized ARM core based PSOC4 chips from Cypress. WiFi duty is handled by the popular ESP8266 module, and the lights themselves are WS2812 addressable strips.

[charliex] really outdid himself this time, creating a complete solution from the ground up. He started with a Cypress dev board, but quickly moved to a board of his own design. The PCBs  first were milled at home, then sent out for manufacturing.
Control of the strip is via UDP through a WiFi network. [Charliex] found the strips have plenty of WiFi range to place outside his home.  The last part of the puzzle was control – which [charliex] handled in style by creating his own GUI to handle synchronizing several strips to music played on a central computer.

snowflakeNext up is [nsted] with another LED hack, Glowing Xmas Snowflake Sculpture. [Nsted] was contracted to add some extra LED bling to a sculpture. The problem was that these LEDs would be filling in gaps left in the primary interactive lighting system which ran the entire sculpture. Any time you have to meld two systems, things can get crazy. [Nsted] found this out as he added WS2812B Adafruit NeoPixel strips to the Sensacell modules already designed into the sculpture. Communications happen via RS485, with Arduino Due and Megas handling the processing. Power was a concern with this sculpture, as it was pulling over 100 amps at low voltage. Like many art installations, this was a “work down to the wire” event. Everything came together at the last-minute though, and the project was a success!

musicNext up is [Jeremy Weatherford] with Christmas Orchestra.  [Jeremy] has taken on the task of making the most epic retro electronics orchestra ever created. He’s playing Trans-Siberian Orchestra’s Wizards in Winter on four floppies, three scanners, and an ancient inkjet printer. LED strips on the moving elements add lights to the sound. An Arduino Mega with a RAMPS board controls the show. [Jeremy] had his orchestra professionally recorded both on audio and in video. We’re anxiously awaiting the final video upload so we can rock out to some old hardware!

xmaslightsFinally, we’ve got [crenn6977] with his Solar powered Christmas Light Controller. This was [crenn6977’s] entry in the The Hackaday Prize. While it didn’t take him to space, we’re sure it will bring Santa to his door. Rather than run lots of tiny solar cells for his Sun powered Christmas lights, [crenn6977] is going for a single large panel and wireless control. The nRF24L01+ is handling the wireless connectivity, while a STM32F042 ARM cortex M0 processor is the brains of the operation. Solar power demands efficient design, so [crenn6977] is digging deep into op-amp circuits to keep those LEDs running through the night, and the batteries charging through the day.

It’s just about time for us to settle our brains for a long winter’s nap, so we’ll close this edition of The Hacklet here.  As always, see you next week. Same hack time, same hack channel, bringing you the best of Hackaday.io!

Hackaday Links: December 14, 2014

 

The Progressive Snapshot is a small device that plugs into the ODB-II port on your car, figures out how terrible of a driver you are, and sends that data to Progressive servers so a discount (or increase) can be applied to your car insurance policy. [Jared] wondered what was inside this little device, so he did a teardown. There’s an Atmel ARM in there along with a SIM card. Anyone else want to have a go at reverse engineering this thing from a few pictures?

[Alex]’s dad received a special gift for his company’s 50th anniversary – a Zippo Ziplight. Basically, its a flashlight stuffed into the metal Zippo lighter we all know and love. The problem is, it’s battery-powered, and Zippo doesn’t make them any more. It also uses AAAA batteries. Yes, four As. No problem, because you can take apart a 9V and get six of them.

‘Tis the season to decorate things, I guess, and here’s a Hackaday snowflake. That’s from [Benjamin Gray], someone who really knows his way around a laser cutter.

HHaviing trouble wiith a debounce ciircut? HHer’s a calculator for just thhat problem. Put iin the logiic hhiigh voltage level, the bounce tiime, and the fiinal voltage, and you get the capaciitor value and resiistor value.

A harmonograph is a device that puts a pen on a pendulum, drawing out complex curves that even a spirograph would find impressive. [Matt] wanted to make some harmonographs, but a CNC and a printing press got in the way. He’s actually making some interesting prints that would be difficult if not impossible to make with a traditional harmonograph – [Matt] can control the depth and width of the cut, making for some interesting patterns.

The Mooltipass, the Developed On Hackaday offline password keeper, has had an interesting crowdfunding campaign and now it’s completely funded. The person who tipped it over was [Shad Van Den Hul]. Go him. There’s still two days left in the campaign, so now’s the time if you want one.

A Motion Activated AC Switching Circuit using Mostly Discrete Components

AC motion switch

If you’ve ever dealt with a brightly lit Christmas tree, you might understand the frustration of having to crawl underneath the tree to turn the lights on and off. [brmarcum] feel’s your pain. He’s developed his own motion activated AC switching circuit to turn the lights on and off automatically. A motion sensor ensures that the lights are only on when there are people around to actually see the lights. The circuit also has an adjustable timer so [brmarcum] can change the length of time that the lights stay on.

The project is split into several different pieces. This makes the building and debugging of the circuit easier. The mains power is first run through a transformer to lower the voltage by a factor of 10. What remains is then filtered and regulated to 9VDC. [brmarcum] is using a Parallax PIR sensor which requires 4.5V. Therefore, the 9V signal is then lowered once more using a voltage divider circuit.

When the PIR sensor is triggered, it activates the timer circuit. The timer circuit is driven by a 555 timer. The circuit itself was originally borrowed from a classic Forrest Mims book, though it was slightly modified to accommodate the PIR sensor. The original push-button trigger was removed and replaced with the signal from the PIR sensor. The only problem is that the circuit was expecting a low signal as the trigger and the PIR sensor outputs a high signal. [brmarcum] resolved this problem with an NPN BJT to invert the signal. Once the timer is triggered, it flips on a relay that allows the mains electricity to flow through to the lights.

[brmarcum] soldered the entire circuit onto a piece of protoboard. The final product was then mounted securely inside of an insulated plastic case. This allows him to mount the circuit safely underneath the Christmas tree skirt. The PIR sensor is kept external to the enclosure and wired up into the tree itself. This allows the sensor to still detect motion in the room while the rest of the circuit is hidden away.

[via Reddit]

3D printed Christmas cookies

3d-printing-christmas-cookies

Here is yet another way to get into the holiday spirit at your local Hackerspace (or at home if you’re happen to have your own 3D printer). [Ralph Holleis] wrote in to show off his 3D printed Christmas cookies. The majority of the info on this project comes from the video embedded after the break. The extruder head he’s using includes a syringe which is filled with what we assume is Spritz Cookie dough. It is squeezed out in a pattern before heading to the oven for baking.

[Ralph] mentioned that he’s using UNFOLD Pastruder as the print head. We looked and couldn’t find that exact design, but it seems like it might be related to this Claystruder head designed by a user named [Unfold]. If you have the exact link to the extruder design seen above please let us know in the comments section.

If you don’t already have this type of head it’s just a matter of printing the mounting brackets and buying a syringe to match. But you’ll also need compressed air and a valve to regulate the flow of dough. It might be easier just to print your own cookie cutters. This is a great project for people who don’t have access to a laser cutter for gingerbread house work.

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Deck the cubes

deck-the-cubes

[MrBuildIt] has lived up to his name when it comes to this year’s Christmas decorations. He built a rig that spreads Christmas cheer from one end of the cubicles to the other.

In the demo video after the break you’ll see that the system is controlled by a nicely polished Android app. It lets you choose from three different Christmas songs (or no music at all) as Santa Claus makes his rounds. The app includes buttons for switching all of the lights on or off but we think it’s more corny fun to see then turn on as Santa flies overhead.

The sleigh and three tiny reindeer are suspended from a pulley system. When they make it to one end of the office a hall effect sensor serves as a limiting switch. From the look of it you’d think Santa will be flying backwards on the return trip but there is a servo that flips the thing around so that he’s going the right way.

This is quite a gaunlet to have thrown down when it comes to office decor. We’d like to see what geeky thing’s you’ve been doing with your own decorations. Get some details up on the web and send a link our way!

Continue reading “Deck the cubes”