An mp3 player in the form of a cassette that works in a cassette player or as a portable player with the addition of headphones.
I pushed the M5Stack ecosystem to its limits through deliberate misuse. Then I hacked the fixed concept of what a 'keyboard' even means.
Build a ₹1, 500 capacitor-discharge spot welder powered by a reusable 3S LiPo — plug it in, weld, then unplug for your next project.
A pocket-sized 1.25V–10V bench supply with USB output, banana jacks, and 2+ hours of battery backup — built for field electronics testing.
Laser alignment meets digital angle readout in one open-source handheld tool — no 3D printer, no expensive parts.
A 150W solar inverter that splits into 4 XT60-connected modules — battery, light, DC charger, and AC — for off-grid field work.
Heat Guard is a compact, real-time Heat Index monitoring device that protects you from invisible heat dangers by tracking temperature, humid
