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ELECTRONICS | DIY | INVENTIONS
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14/06/2026

🤖✨ Built a Smart Desk Buddy using an ESP32-C3 SuperMini, 1.3” OLED display, and TTP223 touch sensor. Programmed with Arduino IDE, it displays 🕒 time, 📅 date, 🌡️ temperature, and ☁️ weather information. A simple touch on the sensor triggers interactive 👀 eye animations, and it also features a unique 📝 Word Clock mode. The project is built on a custom PCB manufactured by 🛠️ JLCPCB. Check out the detailed build and working video on our page! 🚀📟

13/06/2026

🛠️ I built a simple AC line tester using 3 LEDs, 3× 1N4007 diodes, and 3× 100kΩ resistors. Just plug it into a socket and check the LED indications. 💡
📊 Using the LED fault chart, you can quickly identify Phase, Neutral, and Earth wiring faults

This project works directly with mains AC voltage. Build and test only if you have proper electrical knowledge, and always follow appropriate safety procedures. 🔌

12/06/2026

Build Moisture Detection & Auto Shut-Off Circuit

11/06/2026

📡 I built a DIY emergency communication device using Wio tracker L1& SX1262 kit ,It allows long-range messaging and GPS location sharing without a SIM card, Wi-Fi, or internet connection. Perfect for trekking, camping, and outdoor adventures where mobile networks are unavailable. 🛰️🏕️

10/06/2026

Make Long Range Messaging & GPS Tracking Without Internet

09/06/2026

💧 Simple Water Tank Alarm using a BC547 transistor, buzzer, and Type-C 5V power supply. Just place two sensing wires at the desired tank level—when the water touches both wires, the buzzer sounds automatically to alert that the tank is full and help prevent overflow.

08/06/2026

Build an Earth, Neutral & Line Fault Detector

07/06/2026

I made a simple automatic temperature-controlled fan circuit using TIP41C, 10K potentiometer, resistor, and LED. 🌡️⚡

The fan automatically turns ON when the heatsink or component gets hot and turns OFF when it cools down, helping prevent overheating and improving reliability. 💨❄️

Easy to build, low-cost, and useful for power supplies, amplifiers, IC heatsinks, and many electronic projects.

📹 Full making video uploaded on our page

05/06/2026

Make a Clap Activated Light Switch at Home

04/06/2026

I made a 12V portable battery tester using an LM3914 IC ⚙️, 10-bar LED display 📊, a 10K potentiometer 🎛️, and a few resistors 🔧. It’s a simple and compact tool to easily check battery level 🔋—no extra battery required ❌🔋. Just connect the car battery 🚗 and instantly view the charge level on the LED bar 📶. Very small, portable, and useful for quick battery testing 👍.

Full video is uploaded on our page 🎥📲

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Kottakkal

Website

https://youtube.com/@Promaker1, https://youtube.com/@proshorts101

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