Category Archives: Arduino


Portable power supply with built-in batteries

Most of the bench power supplies we use derive power from the main AC supply. ThomasVDD presents his Arduino-controlled smart power supply with built-in battery backup so that you can use it anywhere without an AC outlet. It not only delivers precise output, but is also controllable via PC over an USB port. Key Features Constant voltage and constant current modes Uses a low noise linear regulator, preceded by a tracking preregulator to minimize power dissipation Use of handsolderable components to keep the project accessible Powered by ATMEGA328P, programmed with Arduino IDE PC communication via Java application over micro USB Powered

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Arduino controlled autonomous cooler

This Arduino-powered autonomous cooler follows you to the park or beach by connecting to your smartphone via Bluetooth, and is also GPS-enabled to self-navigate. The electronics is powered by a 5V power supply, whereas a 3s LiPo battery is used to power the motors. Controlled with an Android App, the cooler also features motorized lid that can be opened through the App. A HC-05 Bluetooth module was mounted at the front of the platform for better range. The rest of the components including a L298N motor driver, PAM-7Q GPS, and HMC6883L compass were mounted inside and connected to the Arduino through the breadboard.

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LoRa IOT System for Environment Monitoring

Rod Gatehouse‘s LoRa IOT Home Environment Monitoring System is built using readily available hardware modules and consists of multiple remote stations with environmental sensors that communicate to an Arduino Mega based IoT gateway via LoRa RF modules. The LoRa IOT Home Environmental Monitoring System consists of an Arduino Mega based IOT-to-Internet gateway and Arduino Feather based remote stations with environmental sensors. The remote stations communicate wirelessly with the gateway using LoRa radios. The system enables a homeowner to monitor the home environment via an internet accessible dashboard, receive periodic SMS environmental notifications, receive realtime SMS alerts when monitored environmental parameters exceed preset

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Arduino soldering station

GreatScottLab‘s new project video is about making a DIY soldering station using Arduino and a standard JBC soldering iron. The video also provides all the basic info you would need to know about soldering station, including thermocouples, AC power control and zero point detection. Watch the project video below:

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Garage parking assistant

Parking in your home garage could be a bit of challenge if you have a bigger vehicle. You would like to make sure when you parked, you had enough space to walk around the vehicle. This Instructable describes an Arduino based garage parking assistant that would allow you to park in your best spot every time. It uses an ultrasonic transducer to measure the distance between your car’s bumper and the backside wall of the garage. A control box with visual indicators using bright Green and Red LEDs signals you when you are on the exact spot. Prior to its first use, you

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