Browse software and hardware topics, or share your own idea.
1043 topics available
This project is a working cam-and-follower rig: a 12V DC motor spins interchangeable cam plates while a spring-loaded followe...
This project is a working bench model of the rack-and-pinion steering used in nearly every modern car: turn the steering whee...
This project builds the industrial way of measuring temperature: a PT100 RTD probe read by a MAX31865 RTD-to-digital converte...
This project builds a real digital weighing scale: a strain-gauge load cell mounted on a fabricated base, read by an HX711 24...
This project builds two handheld text-messenger units that talk directly to each other over LoRa radio — no mobile network, n...
This project builds a working wireless sensor network: two sensor nodes (Arduino Nano, DHT11 temperature–humidity sensor, 2.4...
This project sends audio as modulated red light through a plastic optical fiber: an Arduino drives a 650nm LED transmitter mo...
This project builds a working amplitude-modulation transmitter from a single transistor: a BC547 LC-tank oscillator generates...
This project builds a Wien bridge oscillator trainer kit — the classic low-distortion audio sine-wave generator — on breadboa...
