To set the scope of what I am and am not going to talk about here:I am going to describe the pinouts on the IVL2-7/5I am going to talk more about what I did to get it workingI am going to talk about how to test your VFD to make sure it behaves as you...
The monitor shows the daily routines of one month, but stores the entire year. When the routine is accomplished, just press the corresponding day button. This changes the LED light on the button from white to green. I picked the colors green and white,...
First of all, let me clarify that with normal 14500 cells in general, a heavily loaded (with attached USB devices) or tasked (running all cores to the max) Raspberry Pi Model 3 will not run for long on these cells, if at all. Regardless of the capacity...
I knew it would happen at some point. I killed some 30x30 mil LED chips in this stock 10W green package. The remaining good ones still light off DC: Actually two others in the left string also appear at higher currents; before the "event," they all had...
Trawling eBay netted a reasonably inexpensive Accuthermo FC100D TEC (Peltier thermo-electric cooler) controller mounted in an enclosure from Wells-CTI with a 12VDC 8A power supply and TEC H-bridge driver. The FC100D uses PWM and bi-directional...
What is the aim? This log is all about: How can we make the whole board cheaper while keeping all the features and not killing its safety functions. This all refers to the early v0.2 version which is by no means optimized yet! Ways to cut costs I try...
Motor controller and current measurement This will be a long log, so I want to summarize: The motor controller of the “single board” works as expected and we can get a current measurement which is good enough to detect blocked or damaged...
Composite video standard defines a signal with 1Vpp amplitude under a 75 Ohms. From that signal 70% (0.7V) is the amplitude of video information which stands above a 0.3V pedestal, while the synchronism information (sync tip) corresponds to the remaining...
Intro Soft robotics is a field that has fascinated me for the longest time. Though the research field is maturing, I still haven't seen many hobby level soft robotic projects. Starting with no prior experience, a little more than a year ago I got to...
The favorite microcontroller for all things USB, such as keyboards, joysticks or mice, is the good old ATMega 32U4, well known from the Arduino Leonardo. Of course I don't plan to stuff an Arduino-footprint board inside my keyboard, I need a smaller...
Well it's a good thing I wasn't relying upon Mr. Gibbs to navigate the ocean! The system had some issues, to say the least. The bad news is I didn't get to gather any usable data over the weekend, and we did not actually get to use the system at all....
My lab partner, Andrew, and I were faced with deciding on a senior design project to complete our degrees at Lehigh University. Not wanting to waste an opportunity (possibly my last) to work with someone as smart as Andrew, I wanted to take on an ambitious...
In preparing for Adafruit's new version of the Circuit Playground I started using the web browser based dev environment over at http://makecode.adafruit.comYou can find this up there at https://makecode.com/_MJjJrg9eRTmi /* The Circuit Playground Dice...
The experiments with the RES64 are on hold, waiting for the delivery of more/new parts (and the strikes in France make the delivery date even more uncertain) so I'm back to the ASIC side of the projet. There is significant progress with #VHDL library...