Thanks to 3D printing and inexpensive controllers, a robot arm doesn’t need to break the bank anymore. Case in point? [Build Some Stuff] did a good-looking compact arm with servos …read more (https://hackaday.com/2023/04/24/60-robot-arm-is-compact/)
Testing Part Stiffness? No Need To Re-invent the Bending Rig
https://hackaday.com/2023/04/24/testing-part-stiffness-no-need-to-re-invent-the-bending-rig/
https://hackaday.com/2023/04/24/testing-part-stiffness-no-need-to-re-invent-the-bending-rig/
If one is serious about testing the stiffness of materials or parts, there’s nothing quite like doing your own tests. And thanks to [JanTec]’s 3-Point Bending Test rig, there’s no …read more (https://hackaday.com/2023/04/24/testing-part-stiffness-no-need-to-re-invent-the-bending-rig/)
Half Crystal Radio, Half Regenerative Radio
https://hackaday.com/2023/04/24/half-crystal-radio-half-regenerative-radio/
https://hackaday.com/2023/04/24/half-crystal-radio-half-regenerative-radio/
A rite of passage in decades past for the electronics experimenter was the crystal radio. Using very few components and a long wire antenna, such a radio could pick up …read more (https://hackaday.com/2023/04/24/half-crystal-radio-half-regenerative-radio/)
Make Your ESP32 Talk Like It’s the 80s Again
https://hackaday.com/2023/04/25/make-your-esp32-talk-like-its-the-80s-again/
https://hackaday.com/2023/04/25/make-your-esp32-talk-like-its-the-80s-again/
80s-era electronic speech certainly has a certain retro appeal to it, but it can sometimes be a useful data output method since it can be implemented on very little hardware. …read more (https://hackaday.com/2023/04/25/make-your-esp32-talk-like-its-the-80s-again/)
3D Print For Extreme Temperatures (But Only If You’re NASA)
https://hackaday.com/2023/04/25/3d-print-for-extreme-temperatures-but-only-if-youre-nasa/
https://hackaday.com/2023/04/25/3d-print-for-extreme-temperatures-but-only-if-youre-nasa/
At the level pursued by many Hackaday readers, the advent of affordable 3D printing has revolutionised prototyping, as long as the resolution of a desktop printer is adequate and the …read more (https://hackaday.com/2023/04/25/3d-print-for-extreme-temperatures-but-only-if-youre-nasa/)
FET: The Friendly Efficient Transistor
https://hackaday.com/2023/04/25/fet-the-friendly-efficient-transistor/
https://hackaday.com/2023/04/25/fet-the-friendly-efficient-transistor/
If you ever work with a circuit that controls a decent amount of current, you will often encounter a FET – a Field-Effect Transistor. Whether you want to control a …read more (https://hackaday.com/2023/04/25/fet-the-friendly-efficient-transistor/)
Low-Cost RF Power Sensor Gets All the Details Right
https://hackaday.com/2023/04/25/low-cost-rf-power-sensor-gets-all-the-details-right/
https://hackaday.com/2023/04/25/low-cost-rf-power-sensor-gets-all-the-details-right/