Making a DIY Refrigerated Vest With Battery and Solar Power
<img width="800" height="512" src="![image](https://hackaday.com/wp-content/uploads/2026/01/personal_airconditioning_vest_solar_hyperspace_pirate_youtube.jpg?w=800")
alt=""/>Keeping a cool head is difficult at the best of times, least of all when it’s summer and merely thinking of touching bare skin to the pavement already gets you 
alt=""/>Keeping a cool head is difficult at the best of times, least of all when it’s summer and merely thinking of touching bare skin to the pavement already gets you Hackaday
Making A DIY Refrigerated Vest With Battery And Solar Power
Keeping a cool head is difficult at the best of times, least of all when it’s summer and merely thinking of touching bare skin to the pavemen...
Hackaday
Making A DIY Refrigerated Vest With Battery And Solar Power
Keeping a cool head is difficult at the best of times, least of all when it’s summer and merely thinking of touching bare skin to the pavemen...
![image](https://hackaday.com/wp-content/uploads/2026/01/voice-vacuum-main.png?w=800")
alt=""/>Although there are a few robots on the market that can make life a bit easier, plenty of them have closed-source software or smartphone apps required for control that may 
![image](https://hackaday.com/wp-content/uploads/2026/01/ww.png?w=800")
alt=""/>Before PCBs, wiring electronic circuits was a major challenge in electronics production. A skilled person could make beautiful wire connections between terminal strips and components with a soldering iron, but 
![image](https://hackaday.com/wp-content/uploads/2026/01/sony_playstation_annotations_lord_of_nerds_youtube.jpg?w=800")
alt=""/>Although often tossed together into a singular ‘retro game’ aesthetic, the first game consoles that focused on 3D graphics like the Nintendo 64 and Sony PlayStation featured very distinct visuals ![image](https://hackaday.com/wp-content/uploads/2026/02/cia.png?w=800")
alt=""/>Before the Internet, there was a certain value to knowing how to find out about things. Reference librarians could help you locate specialized data like the Thomas Register, the EE 
![image](https://hackaday.com/wp-content/uploads/2026/01/welding-nuts-into-thin-tubing-banner.png?w=800")
alt=""/>[Jer Schmidt] needed a way to put a lot of M8 bolts into a piece of square steel tubing, but just drilling and tapping threads into the thin steel wouldn’t 
![image](https://hackaday.com/wp-content/uploads/2026/01/handbrake-main.png?w=800")
alt=""/>Simulator-style video games are designed to scale in complexity, allowing players to engage at anything from a casual level to highly detailed, realistic simulation. Microsoft Flight Simulator, for example, can 
![image](https://hackaday.com/wp-content/uploads/2026/01/FKMDYC7MKCUN9ZK-e1769400035493.webp?w=800")
alt=""/>Fidget toys are everywhere these days. A particularly popular type simply puts some keyboard switches on a plate to provide a certain type of clicky satisfaction. [wjddnjsdnd] took that concept 
![image](https://hackaday.com/wp-content/uploads/2016/05/microphone.jpg?w=800")
alt=""/>This week, Hackaday’s Elliot Williams and Kristina Panos met up over coffee to bring you the latest news, mystery sound results show, and of course, a big bunch of hacks 
![image](https://hackaday.com/wp-content/uploads/2026/01/3dp-lomo-featured.jpg?w=800")
alt=""/>The joy of camera hacking lies for many at the low end of the market. Not working with many-thousand-dollar Leicas, but in cheap snapshot cameras that can be had for ![image](https://hackaday.com/wp-content/uploads/2026/02/Propeller.jpg?w=800")
alt=""/>When it comes to seaborne propulsion, one simple layout has largely dominated over all others. You pair some kind of engine with some kind of basic propeller at the back 
![image](https://hackaday.com/wp-content/uploads/2026/01/68747470733a2f2f696d672e796f75747562652e636f6d2f76692f776c4473615167574361492f6d617872657364656661756c742e6a7067.jpg?w=800")
alt=""/>Much like how BusyBox crams many standard Unix commands and a shell into a single executable, so too does BreezyBox provide a similar experience for the ESP32 platform. A demo 
![image](https://hackaday.com/wp-content/uploads/2016/08/turingtapes.jpg?w=800")
alt=""/>Have you ever dreamed of making a bash script that assembles Intel 8080 machine code? [Chris Smith] did exactly that when he created xa.sh, a cross-assembler written entirely in Bourne 
![image](https://hackaday.com/wp-content/uploads/2026/01/579321_649607688388311_1794167227_n-e1769743741229.jpg?w=720")
alt=""/>The Commodore Amiga was famous for its characteristic Say voice, with its robotic enunciation being somewhat emblematic of the 16-bit era. The Commodore VIC-20 had no such capability out of the box, 
![image](https://hackaday.com/wp-content/uploads/2026/01/inductance-banner.jpg?w=800")
alt="A graph of current versus time for circuits with and without inductors"/>[Prof MAD] runs us through The Hidden Power of Inductors — Why Coils Resist Change. The less often used of the passive components, the humble and mysterious inductor is the 
![image](https://hackaday.com/wp-content/uploads/2026/01/satisfactory_helmet_punished_props_04-banner.png?w=800")
alt=""/>[GizmoThrill] shows off a design for an absolutely gorgeous, high-fidelity replica of the main character’s helmet from the video game Satisfactory. But the best part is the technique used to 
![image](https://hackaday.com/wp-content/uploads/2026/02/6431-16-9.png?w=800")
alt=""/>When you think of a toy tractor, what probably comes to mind is something with fairly simple lines, maybe the iconic yellow and green, big rear tires, small front ones. 
![image](https://hackaday.com/wp-content/uploads/2026/01/I-Built-a-Macropad-With-a-Haptic-Feedback-Knob-0-12-screenshot.png?w=800")
alt=""/>Macropads can be as simple as a few buttons hooked up to a microcontroller to do the USB HID dance and talk to a PC. However, you can go a 
![image](https://hackaday.com/wp-content/uploads/2026/01/HeatPump.jpg?w=800")
alt=""/>The heat pump has become a common fixture in many parts of modern life. We now have reverse-cycle air conditioning, heat pump hot water systems, and even heat pump dryers. 
![image](https://hackaday.com/wp-content/uploads/2021/08/reactos-featured.jpg?w=800")
alt=""/>Over the past couple of years with the Jenny’s Daily Drivers series, we’ve looked at a number of unusual or noteworthy operating systems. Among them has been ReactOS, an open source