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.

Learn how to build a high-performance Raspberry Pi Wi-Fi router using RaspAP. Easy setup, clean dashboard, VPN support, and practical tips to get faster, cleaner browsing on all your devices.

Build an ESP32 speech recognition offline system with Edge Impulse. Create your own ESP32 voice assistant using an INMP441 microphone for hands-free control.

Build a diy Meshtastic node using Meshtastic ESP32 and LoRa devices for secure, long-range, encrypted mesh messaging, perfect for off-grid communication.

Learn how clocked JK flip-flops work with truth tables, timing diagrams, and circuit designs. Understand toggle, set, and reset operations for digital logic applications.