How Safe is That Ultrasonic Bath for Flux Removal?
https://hackaday.com/2019/12/05/how-safe-is-that-ultrasonic-bath-for-flux-removal/
How do you clean the residual flux off your boards? There are plenty of ways to go about the job, ranging from “why bother?” to the careful application of isopropyl alcohol to every joint with a cotton swab. It seems like more and more people are turning to ultrasonic cleaners …read more (https://hackaday.com/2019/12/05/how-safe-is-that-ultrasonic-bath-for-flux-removal/)
https://hackaday.com/2019/12/05/how-safe-is-that-ultrasonic-bath-for-flux-removal/
How do you clean the residual flux off your boards? There are plenty of ways to go about the job, ranging from “why bother?” to the careful application of isopropyl alcohol to every joint with a cotton swab. It seems like more and more people are turning to ultrasonic cleaners …read more (https://hackaday.com/2019/12/05/how-safe-is-that-ultrasonic-bath-for-flux-removal/)
The Heat Of The Moments – Location Visualization In Python
https://hackaday.com/2019/12/05/the-heat-of-the-moments-location-visualization-in-python/
Have you ever taken a look at all the information that Google has collected about you over all these years? That is, of course, assuming you have a Google account, but that’s quite a given if you own an Android device and have privacy concerns overruled by convenience. And considering …read more (https://hackaday.com/2019/12/05/the-heat-of-the-moments-location-visualization-in-python/)
https://hackaday.com/2019/12/05/the-heat-of-the-moments-location-visualization-in-python/
Have you ever taken a look at all the information that Google has collected about you over all these years? That is, of course, assuming you have a Google account, but that’s quite a given if you own an Android device and have privacy concerns overruled by convenience. And considering …read more (https://hackaday.com/2019/12/05/the-heat-of-the-moments-location-visualization-in-python/)
A Magnetron Tear Down
https://hackaday.com/2019/12/05/a-magnetron-tear-down/
Microwave ovens are everywhere, and at the heart of them is a magnetron — a device that creates microwaves. [DiodeGoneWild] tore one apart to show us what was inside and how it works. If you decide to do this yourself, be careful. The magnetron may have insulators made of beryllium …read more (https://hackaday.com/2019/12/05/a-magnetron-tear-down/)
https://hackaday.com/2019/12/05/a-magnetron-tear-down/
Microwave ovens are everywhere, and at the heart of them is a magnetron — a device that creates microwaves. [DiodeGoneWild] tore one apart to show us what was inside and how it works. If you decide to do this yourself, be careful. The magnetron may have insulators made of beryllium …read more (https://hackaday.com/2019/12/05/a-magnetron-tear-down/)
Gameslab: The Other FPGA Game Console Badge
https://hackaday.com/2019/12/06/gameslab-the-other-fpga-game-console-badge/
Anyone who was at Supercon will no doubt remember the badges that dangled around everyone’s neck. Some were reasonable, while some were neck-straining monsters that added anything and everything to hack the badge into something cool. We saw everything from AI cameras to a fully autonomous vehicle being worn with …read more (https://hackaday.com/2019/12/06/gameslab-the-other-fpga-game-console-badge/)
https://hackaday.com/2019/12/06/gameslab-the-other-fpga-game-console-badge/
Anyone who was at Supercon will no doubt remember the badges that dangled around everyone’s neck. Some were reasonable, while some were neck-straining monsters that added anything and everything to hack the badge into something cool. We saw everything from AI cameras to a fully autonomous vehicle being worn with …read more (https://hackaday.com/2019/12/06/gameslab-the-other-fpga-game-console-badge/)
Not-Quite-So-Hot Stuff: A Thermal Exam On The Latest Raspberry Pi
https://hackaday.com/2019/12/06/not-quite-so-hot-stuff-a-thermal-exam-on-the-latest-raspberry-pi/
When the Raspberry Pi 4 was first launched, one of its few perceived flaws was that it had a propensity to get extremely hot. It’s evidently something the Pi people take very seriously, so in the months since they have addressed the problem with a set of firmware updates. Now …read more (https://hackaday.com/2019/12/06/not-quite-so-hot-stuff-a-thermal-exam-on-the-latest-raspberry-pi/)
https://hackaday.com/2019/12/06/not-quite-so-hot-stuff-a-thermal-exam-on-the-latest-raspberry-pi/
When the Raspberry Pi 4 was first launched, one of its few perceived flaws was that it had a propensity to get extremely hot. It’s evidently something the Pi people take very seriously, so in the months since they have addressed the problem with a set of firmware updates. Now …read more (https://hackaday.com/2019/12/06/not-quite-so-hot-stuff-a-thermal-exam-on-the-latest-raspberry-pi/)
This Week in Security: Tegra Bootjacking, Leaking SSH, and StrandHogg
https://hackaday.com/2019/12/06/this-week-in-security-tegra-bootjacking-leaking-ssh-and-strandhogg/
CVE-2019-5700 is a vulnerability in the Nvidia Tegra bootloader, discovered by [Ryan Grachek], and breaking first here at Hackaday. To understand the vulnerability, one first has to understand a bit about the Tegra boot process. When the device is powered on, a irom firmware loads the next stage of the …read more (https://hackaday.com/2019/12/06/this-week-in-security-tegra-bootjacking-leaking-ssh-and-strandhogg/)
https://hackaday.com/2019/12/06/this-week-in-security-tegra-bootjacking-leaking-ssh-and-strandhogg/
CVE-2019-5700 is a vulnerability in the Nvidia Tegra bootloader, discovered by [Ryan Grachek], and breaking first here at Hackaday. To understand the vulnerability, one first has to understand a bit about the Tegra boot process. When the device is powered on, a irom firmware loads the next stage of the …read more (https://hackaday.com/2019/12/06/this-week-in-security-tegra-bootjacking-leaking-ssh-and-strandhogg/)
Tuning Up the ThinkGeek Star Trek Intercom Panel
https://hackaday.com/2019/12/06/tuning-up-the-thinkgeek-star-trek-intercom-panel/
On Star Trek, all Kirk and friends had to do was snap the button on the always conveniently located intercom panel, start talking, and the intended recipient would immediately respond no matter where they were in the ship. How did it work? Who knows. In spite of, or perhaps …read more (https://hackaday.com/2019/12/06/tuning-up-the-thinkgeek-star-trek-intercom-panel/)
https://hackaday.com/2019/12/06/tuning-up-the-thinkgeek-star-trek-intercom-panel/
On Star Trek, all Kirk and friends had to do was snap the button on the always conveniently located intercom panel, start talking, and the intended recipient would immediately respond no matter where they were in the ship. How did it work? Who knows. In spite of, or perhaps …read more (https://hackaday.com/2019/12/06/tuning-up-the-thinkgeek-star-trek-intercom-panel/)
Hackaday Podcast 045: Raspberry Pi Bug, Rapidly Aging Vodka, Raining on the Cloud, and This Wasn’t a Supercon Episode
https://hackaday.com/2019/12/06/hackaday-podcast-045-raspberry-pi-bug-rapidly-aging-vodka-raining-on-the-cloud-and-this-wasnt-a-supercon-episode/
Hackaday editors Mike Szczys and Elliot Williams talk over the last three weeks full of hacks. Our first “back to normal” podcast after Supercon turns out to still have a lot of Supercon references in it. We discuss Raspberry Pi 4’s HDMI interfering with its WiFi, learn the differences between …read more (https://hackaday.com/2019/12/06/hackaday-podcast-045-raspberry-pi-bug-rapidly-aging-vodka-raining-on-the-cloud-and-this-wasnt-a-supercon-episode/)
https://hackaday.com/2019/12/06/hackaday-podcast-045-raspberry-pi-bug-rapidly-aging-vodka-raining-on-the-cloud-and-this-wasnt-a-supercon-episode/
Hackaday editors Mike Szczys and Elliot Williams talk over the last three weeks full of hacks. Our first “back to normal” podcast after Supercon turns out to still have a lot of Supercon references in it. We discuss Raspberry Pi 4’s HDMI interfering with its WiFi, learn the differences between …read more (https://hackaday.com/2019/12/06/hackaday-podcast-045-raspberry-pi-bug-rapidly-aging-vodka-raining-on-the-cloud-and-this-wasnt-a-supercon-episode/)
Chandrayaan-2 Found by Citizen Scientist; Reminds Us of Pluto Discovery
https://hackaday.com/2019/12/06/chandrayaan-2-found-by-citizen-scientist-reminds-us-of-pluto-discovery/
What does Pluto — not the dog, but the non-Planet — have in common with the Vikram lunar lander launched by India? Both were found by making very tiny comparisons to photographs. You’d think landing something on the moon would be old hat by now, but it turns out only …read more (https://hackaday.com/2019/12/06/chandrayaan-2-found-by-citizen-scientist-reminds-us-of-pluto-discovery/)
https://hackaday.com/2019/12/06/chandrayaan-2-found-by-citizen-scientist-reminds-us-of-pluto-discovery/
What does Pluto — not the dog, but the non-Planet — have in common with the Vikram lunar lander launched by India? Both were found by making very tiny comparisons to photographs. You’d think landing something on the moon would be old hat by now, but it turns out only …read more (https://hackaday.com/2019/12/06/chandrayaan-2-found-by-citizen-scientist-reminds-us-of-pluto-discovery/)
David Williams Is “FPGA-Curious”
https://hackaday.com/2019/12/06/david-williams-is-fpga-curious/
If you hadn’t noticed, we had a bit of an FPGA theme running at this year’s Superconference. Why? Because the open-source FPGA toolchain is ripening, and because many of the problems that hackers (and academics) are tackling these days have become complex enough to warrant using them. A case in …read more (https://hackaday.com/2019/12/06/david-williams-is-fpga-curious/)
https://hackaday.com/2019/12/06/david-williams-is-fpga-curious/
If you hadn’t noticed, we had a bit of an FPGA theme running at this year’s Superconference. Why? Because the open-source FPGA toolchain is ripening, and because many of the problems that hackers (and academics) are tackling these days have become complex enough to warrant using them. A case in …read more (https://hackaday.com/2019/12/06/david-williams-is-fpga-curious/)
Swapping the ROMs in Mini Arcade Cabinets
https://hackaday.com/2019/12/06/swapping-the-roms-in-mini-arcade-cabinets/
You’ve probably seen a few of these miniature arcade games online or in big box retailers: for $20 USD or so you get scaled-down version of a classic arcade cabinet, perfect for a desk toy or to throw up on a shelf as part of your gaming collection. Like any …read more (https://hackaday.com/2019/12/06/swapping-the-roms-in-mini-arcade-cabinets/)
https://hackaday.com/2019/12/06/swapping-the-roms-in-mini-arcade-cabinets/
You’ve probably seen a few of these miniature arcade games online or in big box retailers: for $20 USD or so you get scaled-down version of a classic arcade cabinet, perfect for a desk toy or to throw up on a shelf as part of your gaming collection. Like any …read more (https://hackaday.com/2019/12/06/swapping-the-roms-in-mini-arcade-cabinets/)
Inkjet Printing On The Cheap With A Continuous Ink System
https://hackaday.com/2019/12/06/inkjet-printing-on-the-cheap-with-a-continuous-ink-system/
Inkjet printers are cheap to buy, but expensive to run. Replacement cartridges can easily cost double the price of the hardware itself, leading many to decry the technology entirely. However, the hackers of the world have the problem licked – enter the continuous ink system.
[cprossu] wanted an affordable color …read more (https://hackaday.com/2019/12/06/inkjet-printing-on-the-cheap-with-a-continuous-ink-system/)
https://hackaday.com/2019/12/06/inkjet-printing-on-the-cheap-with-a-continuous-ink-system/
Inkjet printers are cheap to buy, but expensive to run. Replacement cartridges can easily cost double the price of the hardware itself, leading many to decry the technology entirely. However, the hackers of the world have the problem licked – enter the continuous ink system.
[cprossu] wanted an affordable color …read more (https://hackaday.com/2019/12/06/inkjet-printing-on-the-cheap-with-a-continuous-ink-system/)
Behind Amazon’s Doors is a Library
https://hackaday.com/2019/12/06/behind-amazons-doors-is-a-library/
Some people love Amazon, while others think it has become too big and invasive. But you have to admit, they build gigantic and apparently reliable systems. Interestingly, they recently released a library of white papers from their senior staff called the Builder’s Library.
According to their blog post:
The Amazon …read more (https://hackaday.com/2019/12/06/behind-amazons-doors-is-a-library/)
https://hackaday.com/2019/12/06/behind-amazons-doors-is-a-library/
Some people love Amazon, while others think it has become too big and invasive. But you have to admit, they build gigantic and apparently reliable systems. Interestingly, they recently released a library of white papers from their senior staff called the Builder’s Library.
According to their blog post:
The Amazon …read more (https://hackaday.com/2019/12/06/behind-amazons-doors-is-a-library/)
Visiting the FACOM 128B 1958 Relay Computer
https://hackaday.com/2019/12/06/visiting-the-facom-128b-1958-relay-computer/
If you study the history of computing you might have heard of the FACOM 128B, a Japanese relay computer from 1958. It holds the distinction of being a contender for the oldest computer that still works in its original form, as it resides in a Fujitsu building in Numazu Japan. …read more (https://hackaday.com/2019/12/06/visiting-the-facom-128b-1958-relay-computer/)
https://hackaday.com/2019/12/06/visiting-the-facom-128b-1958-relay-computer/
If you study the history of computing you might have heard of the FACOM 128B, a Japanese relay computer from 1958. It holds the distinction of being a contender for the oldest computer that still works in its original form, as it resides in a Fujitsu building in Numazu Japan. …read more (https://hackaday.com/2019/12/06/visiting-the-facom-128b-1958-relay-computer/)
This CPU Has Only One Instruction
https://hackaday.com/2019/12/07/this-cpu-has-only-one-instruction/
Most of us will be familiar at some level with the operation of a basic CPU, usually through exposure to microprocessors of the type that find their way into our projects. We can look at its internal block diagram and get how it works, see the registers and ALU, follow …read more (https://hackaday.com/2019/12/07/this-cpu-has-only-one-instruction/)
https://hackaday.com/2019/12/07/this-cpu-has-only-one-instruction/
Most of us will be familiar at some level with the operation of a basic CPU, usually through exposure to microprocessors of the type that find their way into our projects. We can look at its internal block diagram and get how it works, see the registers and ALU, follow …read more (https://hackaday.com/2019/12/07/this-cpu-has-only-one-instruction/)
Simple Pogo Programmer for ESP8266 Modules
https://hackaday.com/2019/12/07/simple-pogo-programmer-for-esp8266-modules/
ESP8266 development boards like the Wemos D1 Mini and NodeMCU are an excellent way to get a one-off project up and rolling quickly, but their size and relative complexity mean they aren’t necessarily a good choice for even short-run production hardware. On the other hand, programming the bare ESP modules …read more (https://hackaday.com/2019/12/07/simple-pogo-programmer-for-esp8266-modules/)
https://hackaday.com/2019/12/07/simple-pogo-programmer-for-esp8266-modules/
ESP8266 development boards like the Wemos D1 Mini and NodeMCU are an excellent way to get a one-off project up and rolling quickly, but their size and relative complexity mean they aren’t necessarily a good choice for even short-run production hardware. On the other hand, programming the bare ESP modules …read more (https://hackaday.com/2019/12/07/simple-pogo-programmer-for-esp8266-modules/)
Upgrade Your Shades to Find Lost Items
https://hackaday.com/2019/12/07/upgrade-your-shades-to-find-lost-items/
Ever wish you could augment your sense of sight?
[Nick Bild]’s latest hack helps you find objects (or people) by locating their position and tracking them with a laser. The device, dubbed Artemis, latches onto your eyeglasses and can be configured to locate a specific object.
Images collected from the …read more (https://hackaday.com/2019/12/07/upgrade-your-shades-to-find-lost-items/)
https://hackaday.com/2019/12/07/upgrade-your-shades-to-find-lost-items/
Ever wish you could augment your sense of sight?
[Nick Bild]’s latest hack helps you find objects (or people) by locating their position and tracking them with a laser. The device, dubbed Artemis, latches onto your eyeglasses and can be configured to locate a specific object.
Images collected from the …read more (https://hackaday.com/2019/12/07/upgrade-your-shades-to-find-lost-items/)
Beer Keg Becomes High-Performance Pizza Oven
https://hackaday.com/2019/12/07/beer-keg-becomes-high-performance-pizza-oven/
Pizza varies all around the world, with several cities having put their own mark on the Italian dish. To make an authentic pie in the Neapolitan style requires extremely high temperatures in order to cook the pizza through in just a couple of minutes. Armed with a beer keg and …read more (https://hackaday.com/2019/12/07/beer-keg-becomes-high-performance-pizza-oven/)
https://hackaday.com/2019/12/07/beer-keg-becomes-high-performance-pizza-oven/
Pizza varies all around the world, with several cities having put their own mark on the Italian dish. To make an authentic pie in the Neapolitan style requires extremely high temperatures in order to cook the pizza through in just a couple of minutes. Armed with a beer keg and …read more (https://hackaday.com/2019/12/07/beer-keg-becomes-high-performance-pizza-oven/)
Learn Water Purification Techniques with this STEM Learning Kit
https://hackaday.com/2019/12/07/learn-water-purification-techniques-with-this-stem-learning-kit/
We see a lot of great STEM education projects. These projects have a way of turning into something much larger. How many commercial devices and machines are built on Raspberry Pi’s and Arduinos? [Ryan Beltrán] is using common materials to teach people how to clean water. This particular kit demonstrates …read more (https://hackaday.com/2019/12/07/learn-water-purification-techniques-with-this-stem-learning-kit/)
https://hackaday.com/2019/12/07/learn-water-purification-techniques-with-this-stem-learning-kit/
We see a lot of great STEM education projects. These projects have a way of turning into something much larger. How many commercial devices and machines are built on Raspberry Pi’s and Arduinos? [Ryan Beltrán] is using common materials to teach people how to clean water. This particular kit demonstrates …read more (https://hackaday.com/2019/12/07/learn-water-purification-techniques-with-this-stem-learning-kit/)
ESP32 Audio Sampling with Interrupts and IRAM
https://hackaday.com/2019/12/07/esp32-audio-sampling-with-interrupts-and-iram/
Interrupting while someone is talking is rude for humans, but smart for computers. [Ivan Voras] shows how to use interrupts to service the ESP32 analog to digital converters when sampling sound. Interestingly, he uses the Arduino IDE mixed with native ESP-IDF APIs to get the best performance.
Like most complex …read more (https://hackaday.com/2019/12/07/esp32-audio-sampling-with-interrupts-and-iram/)
https://hackaday.com/2019/12/07/esp32-audio-sampling-with-interrupts-and-iram/
Interrupting while someone is talking is rude for humans, but smart for computers. [Ivan Voras] shows how to use interrupts to service the ESP32 analog to digital converters when sampling sound. Interestingly, he uses the Arduino IDE mixed with native ESP-IDF APIs to get the best performance.
Like most complex …read more (https://hackaday.com/2019/12/07/esp32-audio-sampling-with-interrupts-and-iram/)