The latest blog posts to take off on Hacker News. 3,046 posts.
Readers of my blog know I’ve been going to Shenzhen for some time now. I’ve taken my past decade of experience and created a tool, in the form of a book, that can help makers, hackers, and entrepreneurs unlock the potential of the electronics markets in Shenzhen. I’m looking for your help to enable a print run of this…
In the last years, DMR and MOTOTRBO (a.k.a. TRBO a Motorola Solutions branded DMR Radios ) has become a very popular digital voice mode on the UHF and VHF bands and the MD380 radio is the latest cheap DMR walkie-talkie to come out of China. The question is, is it any good? The longer answer is…
I’ve made an Arduino thing that can wirelessly talk to a mobile device over BLE and can now meter the revolutions of a wheel with an optical tachometer. I’m using these two hardware fea…
You may ask yourself, “How did I get here?” - Talking Heads
Learn how to access *multiple cameras* (including USB webcams and the Raspberry Pi camera module) using your Raspberry Pi, Python, and OpenCV.
Modern smartphones have a CPU chip, and a baseband chip which handles radio network communications (GSM/UMTS/LTE/etc.) This chip is connected to the CPU via DMA. Thus, unless an IOMMU is used, the baseband has full access to main memory, and can compromise it arbitrarily.
When I launched Diablo III, I didn’t expect the pornography I had been looking at hours previously to be splashed on the screen. But that’s exactly what replaced the black loading scree…
Two years ago, I spent some time analyzing the algorithm used in a candle flicker LED as commonly found in cheap artificial candles. I reverse engineered the algorithm from the flickering pattern…
The 13-inch non-Retina MacBook Pro, model MD101LL/A , was launched in 2012 for $1199 . Almost four years later, it’s still for sale , completely unchanged except for a price drop to $1099 in 2013.
Almost every smartphone uses a processor based on the ARM1 chip created in 1985. The Visual ARM1 simulator shows what happens inside the...
A magic mirror is a raspberry pi powered monitor behind a double sided mirror. A mostly black web page allows you to add some widgets to the mirror’s reflection as if by magic. This version includes widgets for displaying the weather forecast, the date/time and a nice randomly generated greeting. No low level hardware…
Software optimization resources | E-mail subscription to this blog | www.agner.org
Wifibroadcast is a project aimed at the live transmission of HD video (and other) data using wifi radios. One prominent use case is to transmit camera images for a first person view (FPV) of remote…
Twitter users @SadHappyAmazing and @HistoricalPics posted yesterday two photographs (copy) showing the Raspberry Pi Zero juxtaposed in front of the Norwich City Council Treasurer's Department building, where the delivery of the Elliott 405 computer was photographed in 1957. Here is how the two computers compare.
I also gave a talk about this project on the Hackaday Superconference 2015. There is a video available of that if you'd rather watch me talk. You can also directly view the end result if you so please.
Every FPGA vendor keeps the bitstream format for their device secret. Only the tools provided in binary-only format by the vendor (and a select few third parties under NDA) can generate these bitstreams.
I like to tinker. My wife picked me up the new Raspberry Pi Zero. It's an ultra small and ridiculously cheap computer. How small and cheap? They give it away free on the cover of magazines... Terence Eden is on Mastodon@edentIf you hurry down to WHSmith in Oxford, there are still a few @TheMagP1 copies left.❤️ 3💬 0🔁…
I've ever dreamed of space & satellites, it turms out you can received pictures from them.
Have you ever wondered what's inside your Macbook's charger? There's a lot more circuitry crammed into the compact power adapter than you...
