The circuit diagram of the Arduino-controlled 12V automatic battery charger is shown in Fig. 1. It is built around Arduino Uno (Board1), adjustable voltage regulator LM338 (IC1), 12V voltage regulator ...

With the Arduino Uno's ADC, we can make a battery level sensor. The stepper motor's speed is controlled using the capacitive touch input, with the current rpm and motor steps displayed on the LCD. If ...

The Power Supply will be an Arduino UNO Power Supply Shield which will output multiple voltage range such as 3.3V, 5V and 12V. The Shield will be a typical Arduino UNO shield with all pins of Arduino ...

The build relies on an Arduino Uno as the brains. ... Power is courtesy of a 3-cell lithium-polymer battery. The chassis, legs, and joints are all 3D-printed, ...

To measure a 9V battery’s voltage, an Arduino Uno was setup along with a sense voltage where the current leaving the battery through a 10 Ohm sense resistor is monitored. A current sink that came from ...