For a lot of us, soldering just seems to come naturally. But if we’re being honest, none of us was born with a soldering iron in our hand — ouch! …read more (https://hackaday.com/2025/01/09/retrotechtacular-soldering-the-tek-way/)
Toner Transfer, but Not for PCBs
https://hackaday.com/2025/01/09/toner-transfer-but-not-for-pcbs/
https://hackaday.com/2025/01/09/toner-transfer-but-not-for-pcbs/
It is old news that you can print PCB artwork on glossy paper and use a clothes iron to transfer the toner to a copper board, which will resist etchant. …read more (https://hackaday.com/2025/01/09/toner-transfer-but-not-for-pcbs/)
Sheet Metal Forming With 3D Printed Dies
https://hackaday.com/2025/01/09/sheet-metal-forming-with-3d-printed-dies/
https://hackaday.com/2025/01/09/sheet-metal-forming-with-3d-printed-dies/
Sheet metal is very easy to form, including the pressing in of intricate shapes with dies and a hydraulic press, but the dies themselves are slightly harder to come by. …read more (https://hackaday.com/2025/01/09/sheet-metal-forming-with-3d-printed-dies/)
Engineering Lessons from the Super-Kamiokande Neutrino Observatory Failure
https://hackaday.com/2025/01/09/engineering-lessons-from-the-super-kamiokande-neutrino-observatory-failure/
https://hackaday.com/2025/01/09/engineering-lessons-from-the-super-kamiokande-neutrino-observatory-failure/
Every engineer is going to have a bad day, but only an unlucky few will have a day so bad that it registers on a seismometer. We’ve always had a …read more (https://hackaday.com/2025/01/09/engineering-lessons-from-the-super-kamiokande-neutrino-observatory-failure/)
At the recent 38C3 conference in Germany, someone gave a talk about sending TOSLINK digital audio over fiber optic networks rather than the very low-end short distance fibre you’ll find …read more (https://hackaday.com/2025/01/09/its-ip-over-toslink/)
A Low Effort, Low Energy Doorbell
https://hackaday.com/2025/01/10/a-low-effort-low-energy-doorbell/
https://hackaday.com/2025/01/10/a-low-effort-low-energy-doorbell/
Bluetooth is a good way to connect devices that are near each other. However, it can drain batteries which is one reason Bluetooth Low Energy — BLE — exists. [Drmph] …read more (https://hackaday.com/2025/01/10/a-low-effort-low-energy-doorbell/)
RISC-V Microcontroller Lights Up Synth with LED Level Meter
https://hackaday.com/2025/01/10/risc-v-microcontroller-lights-up-synth-with-led-level-meter/
https://hackaday.com/2025/01/10/risc-v-microcontroller-lights-up-synth-with-led-level-meter/
The LM3914 LED bar graph driver was an amazing chip back in the day. Along with the LM3915, its logarithmic cousin, these chips gave a modern look to projects, allowing …read more (https://hackaday.com/2025/01/10/risc-v-microcontroller-lights-up-synth-with-led-level-meter/)