A programmable, portable, rechargeable power supply based on Arduino featuring an OLED display for viewing V.I.P. of projects/prototypes.

Per-tip calibration and high-frequency temperature check by Timer1 for a more accurate soldering iron.

Improved version of the soldering iron controller for Hakko 907 iron. To simplify building the controller, LCD screen is implemented.

The soldering iron controller based on arduino that implements PID method to keep the temperature of the iron.

The Companion IC is a very cool looking Clock + Ohmmeter + Capacitance Meter + Diode Tester!

The software library to calculate moon age, sunrise and sunset time.

FreeRTOS, simple, easy, robust, and optimised for Arduino IDE. Using FreeRTOS Semaphores to share and protect physical resources.

Tutorial of Shift Register 74HC595, drivers like ULN2803, UDN2981, transistor BC327, making your designs more robust and reliable!

Use FreeRTOS (simple, easy, robust, & optimised for the Arduino IDE) to reduce the power required for battery or low power applications.

A simple self contained Scalar Network Analyzer. It is used for testing and alignment of RF circuits, including amplifiers and filters.

Measure rotation speed (RPM) with Optocoupler and Encoder disk and Arduino - Quick and Easy!

Build a treasure chest or use an existing storage box, attach a push-button quadrature rotary encoder (endless spinning dial) and lets go!

Connect Matrix Keyboard using only 2 Arduino pins by using PCF8574/PCF8574A I2C GPIO - Quick and Easy!

Step by step approach is followed so that any hobbyist or design engineer can have a better understanding of the basic concepts.

Easily connect Arduino boards at a great distance over RS485 with Visuino.

Embedis is a library for creating simple embedded key-value servers using non-volatile storage like NVSRAM, FRAM, FLASH, or EEPROM.

Using the built-in Arduino EEPROM to save and restore values - Quick and Easy

Measuring Ambient Light with I2C BH1750 Digital Light Sensor and Arduino - Quick and Easy

Arduino Nano and Visuino: Convert Acceleration to Angle From Accelerometer and Gyroscope MPU6050 I2C Sensor - quick and easy

Control Relay connected to Arduino with Infrared Remote - Quick and Easy

A homemade semi-automatic antenna tuner for HF controlled by an Arduino Nano.