note

[Kato RC Publishing Article #14] The Era of Peering into the Ocean for Just 10,000 Yen — The DIY Submarine Revolution Pioneered by ESP-DIVE

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 ...
Hackaday

servo motor

It’s little secret that stepper motors are everywhere in FDM 3D printers, but there’s no real reason why you cannot take another type of DC motor like a brushless DC (BLDC) motor and use that instead.
GitHub

Building an Arduino Robot Car

⚠️ Critical: Arduino GND, L298N GND, and battery negative must all be connected together. Missing this causes erratic behaviour. Building-an-Arduino-Robot-Car/ ├── src/ │ ├── v1_obstacle_avoidance/ # ...
GitHub

audio.cpp

constexpr size_t m_frameSizeMP3 = 18000; // more than one icy-metaint constexpr size_t m_frameSizeAAC = 18000; // more than one icy-metaint constexpr size_t m_frameSizeFLAC = UINT16_MAX; // max ogg ...
Frontiers

Challenge-based learning framework for robotics education using open-source differential mobile robots

Solution to Challenge III The student must program their own MR controller in Arduino using the encoders’ odometry. Then, the student has to obtain an appropriate set of control gain values and a ...