ESPboy is open-source (most software is under MIT license) and open-hardware (CERN license) project. OSHWA certification record Openhardware.io record ESPboy is a science, technology, engineering, and mathematics [STEM] learning platform which encourages...
The core ingredients of this project are: Nvidia Jetson Nano development board / Raspberry Pi 4 + 4 GB RAM.Noctula fan nf a4x20 5v pwm (Nano only)ADC Pi shield for sensing battery and supply voltages.EVM3683-7-QN-01A Evaluation Board for supplying...
DIY BLUETOOTH 2.1 TROLLEY SOUND SYSTEM A new tutorial! This time I chose to build a musical instrument, based on 2.1 home theatre boards. Things used in this project Hardware components 5pcs. 500 Ohm Resistance 2pcs. 220 Ohm Resistance 4pcs....
pxlBlck is a basis for a smartHome indication system. Several software and Hardware options are available. Thanks to the ESPEasy interface the devices can be automated wihtout the need of external automation-software. In combination with external automation-software...
Greetings all! This is my take on a Raspberry Pi-based laptop. Can I call it a cyberdeck? That seems to be in vogue, so I will. I was originally going to go x86/amd64 with one of these shelled but: 1) It was well-worn and had a loose hdmi port,...
Pulsed ElectroMagnetic Field therapy, also known as PEMF, is a drug-free, non-invasive, pain-relief alternative treatment, which also promotes accelerated healing for ailments and injuries. PEMF therapy improves sleep, mental focus, and...
Royal Raymond Rife was a scientist, inventor and medical researcher (1888-1971). He is known for his microscopes, which he claimed could observe live microorganisms but also by an electronic device constructed by him called the Rife Machine, which...
Media Music I mentally associate with this project Navigation The title tag system is explained here, and the table is updated when a change occurs. Notable logs have bold L# text. L1[R] 2.4 x 1.2 x 2m Tent DiscoveryL2[P][R] Carbon Filter...
Theory Passive Sonar As an alternative to measurement of vehicle motion using a radar gun, I wanted to build a very low cost system which didn't require illumination of the vehicle either actively with a local source (monostatic radar/sonar) or passively...
INTRODUCTION: In the analog signal Amplitude, Frequency and Phase are few considerable parameters. There are modulation and demodulation schemes available to achieve transmission and reception of the message between source and destination. There...
I started with just the physical build of the door/bookcase, since I knew the rest would be fairly easy and I didn’t have anything specific in mind on the operational side, so any compromises I had to make later wouldn’t be a big deal. I was also a little...
For whatever it is worth, at this point in time - if I add up the word count for every project that I have ever submitted to Hackaday, well, right now I don't quite know if I have hit the 50,000 or even the 100,000-word mark yet. The 100,000-word...
Getting the stock radio out was easy. I am not a total stranger to doing car audio installs so I figured this was a piece of cake. As it turns out not all cake is sweet nor easy to swallow. Think stale carob. I used to have a...
Cheap PCB Manufacturers Cheap PCB Manufacturers ExpressPCBCustomer1:Pros:1. Easy to use. You can probably learn how to use it in a day.2. Do not need to generate Gerbers to order PCBs.Cons:1. Locked into a specific PCB manufacturer which is ExpressPCB.2....
At the beginningAs a juggler, I first used commercial programmable glowing club. But I encountered some limits : no multi platform, no radio communication, no flexibility, no 9-Axis, but above all no possible communication with developers to improve...