Huaxing Intelligent Control UWBLOC positioning system adopts self-developed wireless pulse ranging technology to achieve precise positioning of exhibition hall personnel and exhibits. The positioning accuracy is better than 30 cm. By setting the base...
Dyson V6 Setup and Running System Dyson handheld vacuum cleaners utilize high RPM brushless DC motors. Specifications indicate that some models can reach as high as 125000 RPM. I’ve disassembled DC56(V2), V6, and V10 models. Each has a brushless single-phase...
No, this isn't like the sound of one hand clapping. Several popular ham antennas depend on multiple sections of coax, which act alternately as radiators and delay lines. The velocity of propagation in the delay lines is well known, being 66% for solid...
A80 Teardown The newer A80 with QHD at 30 fps and 4K24p capabiltiy (20MP still frames) has a lens shroud that is tucked under the front cover (left), which needs careful persuasion for its clips to release without breaking. The short sides appeared to...
One of the popular chip formats in the 70's and 80's were the ubiquitous EPROMs (Electrically Programmable Read Only Memories). They had very good memory density at the time and were accessible technology for hackers and OEMs alike. They had the advantage...
Long ago, in a land called Kettering, OH, my 14-year-old self got bored, restless and discontent, but this was no ordinary case of adolescent ennui. I was jealous, longing, consumed by the desire to do one thing above all else. It was a crazy...
Most clocks use sound to wake you up. This clock is no exception. A little "DFPlayer Mini" module does all of that, also MP3 decoding. It even includes a speaker driver. Yue Xin YX5200-24SS module! Check for short circuit between pin 3 and...
Programming 2764 EPROM with a Mega2560, SD card reader and 5-12V Buck converter If you have ever wondered what it would be like to have a real retro -computer-nerd experience, then maybe programming EPROMs will fit the bill for you. Since the late 60's...
Some background... The main purpose of my Intel HEX project was to: Check how difficult it is to create non-CPU controllers using microcodeImprove my microcode compiler based on real projectGive me a tool for priming memory of FPGA-based computers when...
Table of ContentsIntroductionAlternate InstructionsLooking for how to use this with Onocoy?Hardware ComponentsRecommended AntennasBasic Antennas for RTK, ROVER, Window SituationsAdvanced Antennas for Base and Reciver StationsStep-by-Step Setup1. Assemble...
Some people say that if LED street lights are not powered by solar energy, they will have no further value for use; Some people also say that solar power supply will only make the production cost of LED street lights more expensive, making it difficult...
Fronius Symo 6.0-3-M inverter Table of Contents 1. Interfaces 1.1. DATCOM1.2. The Datamanager card 1.2.1. Ethernet1.2.2. WLAN1.2.3. USB 2. Other3. References The Fronius Symo 6.0-3-M is a 6 kW 3-phase grid-tie inverter that is currently a part of my...
My name is Dmitriy Dudarev. I develop electronics, and I love to create different portable devices. I also love music. A long time ago, in April 2020 or so, when the whole world was shaken by the terrible quarantine, I decided to learn to play...
This article shows the basics of capacitor safety. 1. My Story When I was a teenager we used to Soviet mains powered have film projector. This project had a small AC motor, that was used to roll the film. It had a capacitor or varistor connected in parallel...
Although women represent nearly half of the world's population, the number of technology companies that address their specific health care needs is but a small fraction of the global technology market. In 2019, the Female Technology, “femtech,”...