DIY Super Simple Sensitive Metal Detector
https://makerv2.webteractive.co/analog/projects/diy-super-simple-sensitive-metal-detector
Extremely simple Metal Detector whose making requires only one cheap integrated circuit TL084.
DIY Very simple Arduino Metal Detector
https://makerv2.webteractive.co/arduino/projects/diy-very-simple-arduino-metal-detector
Despite its simplicity, it has a relatively good sensitivity and perfect stability during operation
DIY Simple Alpha Radiation Spark Detector (High Voltage)
https://makerv2.webteractive.co/analog/projects/diy-simple-alpha-radiation-spark-detector-high-voltage
A very simple device that can detect Alpha radiation and the presence of Alpha radiation is manifested by small sparks between electrodes
DIY Simple FFT Spectrum Analyzer on 16x16 LED Matrix
https://makerv2.webteractive.co/arduino/projects/diy-simple-fft-spectrum-analyzer-on-16x16-led-matrix-1
Visually beautiful spectrum analyzer that can also function as an Audio VU Meter and Waterfall Analyzer.
DIY Simple BME280 Arduino Weather Station
https://makerv2.webteractive.co/arduino/projects/diy-simple-bme280-arduino-weather-station
Super simple Weather station containing only two components.
DIY super simple electronic component tester
https://makerv2.webteractive.co/arduino/projects/diy-super-simple-electronic-component-tester
The device is capable of testing: PNP, NPN transistors, N or P Channel MOSFET, Diodes, Double diodes, Resistors, Capacitors...
How to Build a Simple DIY Walking Robot
https://makerv2.webteractive.co/custom/projects/build-simple-diy-walking-robot
Build this easy walking robot — no Arduino, Raspberry Pi, or microcontroller required.
How to Build a Very Simple DIY Home Automation System
https://makerv2.webteractive.co/esp8266/projects/how-to-build-a-very-simple-diy-home-automation-system
Using a simple relay board and an ESP8266, this project teaches you how you can automate your home!
DIY Musical Doorbell
https://makerv2.webteractive.co/analog/projects/diy-musical-doorbell
Learn how to make a simple musical bell using the UM66T melody generator IC.