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10kHz to 225MHz VFO/RF Generator with Si5351 - Version 2

“For use in DIY homebrew radio equipment such superheterodyne receivers, SDR, HAM QRP transceivers or RF generator. This is a project of a VFO (variable frequency oscillator) for use in DIY homebrew radio equipement such as Superheterodyne Receivers, DCR, SDR …

3D Printed Arduino Based Analog Digital Clock

“This is a Digital Clock design that was built from 24 custom 3D printed analog clocks. It shows the digital time. Between time displays, it shows moving artwork. It is composed of 3D printed parts, 25 Arduino nanos and 48 …

A Simple 3D Printed Frame for an RGB LED Panel

“Unlike our instructable on aluminum frames for RGB LED panels( https://www.instructables.com/Simple-Extruded-Alu…), which is scalable to almost any size display, this design is targeted at a display using one specific type of panel (191mm x 96mm). The …

Accurate clock just using an Arduino

“An accurate clock with date displayed on a 16x2 LCD using just the Arduino, the display and few buttons. No RTC module required. I started this as an academic exercise, but ended up with a very accurate clock. After running …

An Introduction to RP2040 PIO with CircuitPython

“Inspired by COVID-19 prevention, we have developed a system which measures the temperature of persons before they enter a building. A feature that sets the Raspberry Pi Foundation RP2040 microcontroller apart from other microcontrollers is “PIO”. The RP2040 datasheet …

Arduino Audio Spectrum Shield WS2812 LED Display

“This is a really simple build made up of essentially 3 components and some fun coding with nested loops to translate audio amplitude data into colorful displays; An Arduino (I used an Uno but any Arduino with at least 2 …

Arduino Based Self Balancing Bot

“Hey everyone what’s up! So here’s my 3D Printed Self-balancing robot which is powered by an Arduino nano board and has an MPU6050 to get the accelerometer and gyro readings to balance itself using the PID function. This …

Arduino Magnetic Field Strength Meter

“Magnetic field is a region around a magnetic material or a moving electric charge within which the force of magnetism acts. Device is extremly simple and consist only few components: - Arduino nano microcontroller - small Oled display - Led and resistor - and …

Build Your Own Plant Monitor Using Meadow

“Make this plant monitor using a capacitive soil moisture sensor, temperature sensor and display its health on a screen in .NET with Meadow. In this project we’re making a plant monitor to keep a plant nice and healthy using …

Cheap USB to UART Converter Using Microchip MCP2200

“Cheap USB to UART (RS232/Serial) Converter Using Microchip MCP2200 Nowadays USB port is used widely for data transactions between electronic devices and computers. In many scenarios, there is no need to communicate with the USB port directly, therefore electronic …