Over the last few years, the art and artistry of printed circuit boards has moved from business cards to the most desirable of all disposable electronics. I speak, of course, of badgelife. This is the community built on creating and distributing independent electronic conference badges at the various tech and security conferences around the globe.…
From the Tindie blog:
When you’re pushing your Arduino to render graphics, the hardware side of things can get pretty messy. Building the keyboard interface and TVout on a breadboard is a potential solution, but you can run into problems like loose connections and data problems from breadboard capacitance. Dylan Brophy of the Nuclaer Tech store on Tindie has this problem licked.
The NGT30 is an Arduino Desktop Shield that circumvents many of these problems to streamline your development process. It has a keyboard port, VGA output, and advanced rendering functions to ensure a high FPS for your games or other graphics needs. The Propeller chip on the shield takes the heavy lifting off of the Arduino.
It’s capable of rendering basic text and color graphics to a VGA monitor, but it can also make 3D lines for rendering meshes, and you can store sprites for quick rendering later.
The GPU only uses two Arduino pins. Each pin can be selected to avoid conflicts. It’s a simple and elegant solution to a complex hardware problem. If you want to follow along with development, check out the details of the project over on Hackaday.io.
An updated walkthrough of how to take a custom image an insert it into a KiCad file as copper, silkscreen or soldermask. Useful for adding various artistic layers to your PCB.
From the Tindie blog:
The OKAY is an analog squarewave synth, ideal for DIY fanatics who want to make big basslines and searing leads! It has a full range of tactile switches and is super portable thanks to being battery powered, so if you need a squarewave synth to go, OKAY is where its at!
The OKAY synth can be played at home or on the move, as it comes with a built in amplifier, speaker and audio output for headphones or recording. You can select through a full spectrum of tones over 6 octaves, mapped across 2 full octaves of keys — for wide-ranging playability off the back of a 9V battery!
Squarewave synths are the go-to sound if you remember the days of Commodore 64, Atari ST and Amiga — making chiptunes on trackers! There is no sound like it, and using the audio output gives you the chance to run it through some pedals and outboard effects.
This educational, hack-able, 3D-printable synth hales from San Fransisco, California and comes in kit form, with PCBs, electronics components and assembly guide. If you own a 3D printer, you have access to all of the STL files on Thingverse to create your own keys, enclosure and other mechanical parts.
From Bradley Ramsey on the Tindie blog:
LiDAR technology has huge implications for future technology. These sensors provide accurate distance data to robotics platforms and drones for the purpose of collision avoidance, gesture recognition, area mapping, and motion sensing. This same kind of technology even powers modern self-driving vehicles.
MappyDot Plus, from Tindie seller SensorDots, is a micro LiDAR solution that uses the VL53L1X time-of-flight sensor from STMicroelectronics, along with an onboard controller to provide a significant amount of features from one component.
Each MappyDot+ is able to provide distance measurements, in millimeters, up to 4 meters at a non-interpolated rate up to 100Hz. The field of view is programmable from 15 to 27 degrees without additional optics.
If you chain multiple MappyDots or SensorDot boards together, you can gather multi-dimensional data about an area, similar to radar, without reducing the sampling rate. The sensor also performs low pass filtering on the motion data to offer the clearest possible picture of the environment around it.
The pulses from MappyDot+ are used for a variety of functions. Drones can utilize them to avoid collisions in mid-flight, or harness the data to optimize landings. You can even equip the sensor to doors and have them open automatically.
Each MappyDot Plus ships with the latest firmware, but new features are constantly added. You can find the latest firmware version on the Github repository. You can also chain MappyDot Plus to other SensorDots boards (a breakout board for use with MappyDot Plus) on the same bus.
Perfect for learners, Anouk’s 3D-printed headset comes with custom cat-ear PCBs, created in Autodesk EAGLE and printed by OSH Park!
Check out the tutorial on Hackster:
It’s the second iteration of the cat ears so feel free to redesign, remix, reprogram or even reverse engineer anything and everything that I am about to show you! ❤
This time – with the boards being printed at OSHPark, and an Hackster.io tutorial by me and Alex Glow that shows you how to solder these cute little boards!
This time – with the boards being printed at OSHPark, and an Hackster.io tutorial y me and Alex Glow that shows you how to solder these cute little boards!
From Roger Cheng on Hackaday:
In European medieval folklore, a practitioner of magic may call for assistance from a familiar spirit who takes an animal form disguise. [Alex Glow] is our modern-day Merlin who invoked the magical incantations of 3D printing, Arduino, and Raspberry Pi to summon her familiar Archimedes: The AI Robot Owl.
The key attraction in this build is Google’s AIY Vision kit. Specifically the vision processing unit that tremendously accelerates image classification tasks running on an attached Raspberry Pi Zero W. It no longer consumes several seconds to analyze each image, classification can now run several times per second, all performed locally. No connection to Google cloud required. (See our earlier coverage for more technical details.) The default demo application of a Google AIY Vision kit is a “joy detector” that looks for faces and attempts to determine if a face is happy or sad.