Build an Arduino robotic arm with servo motors, 3D-printed parts, a circuit diagram, and complete code. Step-by-step DIY tutorial for pick-and-place robotic arm operations.

Master ESP32 CAM currency recognition with our Arduino guide. Step-by-step: Edge Impulse training, circuit setup, code deployment for Indian note detection.

Step-by-step ESP32 Betaflight Drone tutorial. Flash firmware, configure Betaflight Configurator, tune PIDs, and set up your ESP32 Betaflight drone for stable flight.

Build a Joule Thief circuit to power LEDs from dead batteries. Complete circuit diagram with toroid, working principle, components list & step-by-step assembly guide.

Learn to interface the Raspberry Pi Pico RTC DS3231 using Arduino IDE. Build an accurate digital clock with 16x2 I²C LCD. Includes circuit diagram, code & troubleshooting.

Build an LED chaser circuit using a 555 timer IC and a CD4017. Complete guide with circuit diagram, pinout, assembly steps, and troubleshooting. Adjustable speed control included.

Build an intelligent ESP32 AI voice assistant using Xiaozhi framework. Includes PCB design, hardware assembly, 3D enclosure, and MCP integration for smart home control.

Complete guide to building a precision digital micro ampere meter using STM32. Measures nA to mA with OLED display. Includes circuit, PCB files, firmware & 3D enclosure. DIY ampere meter DC digital.

Build a dual axis solar tracker system using Arduino, LDR sensors & servo motors. Increase solar panel efficiency by 30-40%. Complete circuit diagram & code included.

DIY Bluetooth Speaker using the JDY-62 module and PAM8403 amplifier for clear, wireless audio. This simple project covers components, pinouts, wiring, and circuit setup, making it perfect for beginners learning basic electronics while creating their own portable speaker.