Show HN: 32V TENS device from built from scratch under $100 https://ift.tt/agH2KnN
Show HN: 32V TENS Device Built From Scratch for Under $100 Original Post Link: https://littlemountainman.github.io/2025/11/17/tens/ Date: November 17, 2025 — 04:06 PM Building medical-adjacent electronic devices is usually considered the domain of specialized engineers, highly regulated manufacturers, and expensive hardware labs. So when a maker publicly shares a functioning 32-volt Transcutaneous Electrical Nerve Stimulation (TENS) device—built completely from scratch for under $100—it stands out as a fascinating example of modern DIY innovation. This project, presented in a Show HN post, is not a quick hack or a recycled kit. It is a carefully documented, safety-conscious, engineering-forward build that shows what’s possible when curiosity drives creativity. The creator’s goal was straightforward: construct a fully functional TENS unit that delivers safe electrical pulses for pain management and muscle stimulation, similar to commercially available devices costing $60–$200. Inste...