October 2025. A maker uploaded a video to YouTube. The title was "Build an ESP32 RC Submarine with FPV Camera". Just $117. An ESP32 microcontroller and a 3D printer. An acrylic pipe and a syringe. By ...

The clear side cover of the AR4 MK5. The internal cooling fan, Teensy 4.1 board, and wiring are neatly visible. You can feel the designer's attention to detail in this beauty. 1. A 6-axis robot arm on ...

Split-flap displays are a great, low-power way to display text to a wide audience. Compared to other display technologies ...

Tony Goacher] has worked with a lot of cheap brushless DC motor controllers built in China. They can be very cost-effective, ...

A gesture-activated, voice-controlled pitch-training game with an automated mechanical enclosure. PitchPop is a real-time embedded game in which the player controls an on-screen ball by producing a ...

OLED display, 1.3inch, 128x64. Rotary encoder with button. Power switch, to turn on and off. 3D printer filament extruder, for the wire feeder. D8mm L100mm lead screw (x2), for the linear motion. D8mm ...

These differences in implementation among other students are consistent with the average of 15.52% of the possible 25% considered for this factor. Regarding functionality, Arduino programs are ...