This project is still in it's startup phase which means that a lot of things aren't well thought through. The code of this project is partially based on the example project for the data logger shield ...

Accurate and precise current, voltage, and power measurement with the INA219 sensor. Real-time display of voltage (in V), current (in mA), power (in mW) and energy (mWh) on the 16x2 LCD. Energy ...

The folks over at Adafruit have been busy designing an LED matrix wristwatch for a while now. The circuit works great, but since this watch is powered by a coin cell battery, they’d really like to get ...

Makers and developers that are looking to carry out or create projects for environmental monitoring may be interested to know that the Arduino compatible EnviroDIY Mayfly Data logger board is now ...

The ATMega328 microcontroller as mounted on the Arduino UNO board has a 10-bit AD converter. Let’s use its function analogRead to measure some voltages with. How can we improve the accuracy of the ...

Here is a useful circuit for Arduino lovers and experimenters. It is a simple digital voltmeter, which can safely measure input dc voltages in 0 to 30V range. The Arduino board can be powered from a ...

The extendable Arduino GPS data logger consists of a shield that is fitted with the GPS receiver, SD card reader, and accelerometer, together with an Arduino UNO board. This combination of components ...

VCC is the power supply pin of the soil moisture sensor that can be connected to 3.3V or 5V of the supply. But do note that the analog output will vary depending on the provided supply voltage. GND is ...