9V/12V/24V to 5VDC-DC Step Down Car USB Charger with 3A Output Buck Regulator

Description

What it is

The Auto Step-Down Charger from 9V/12V/24V to 5VDC-DC USB Output 3A is a DC-DC voltage regulator that converts car power into a stable and safe current to power electronic devices such as Arduino, ESP, and other components.

Features

• Regulation from 9V to 24V to 5VDC-DC
• USB Output with maximum current of 3A

What it is for

Ideally used to power Arduino and ESP projects, this charger is suitable for both mobile and lab applications. You can use it to power a simple circuit like an Arduino Nano with an LED and a 220 Ohm resistor.

Tutorial: How to use Auto Charger

This auto charger regulates power from 9V to 24V to 5V, perfect for powering your Arduino projects.

What you need

• Auto Charger
• USB Cable
• Arduino or powered device

Steps

1. 1. Connect the USB cable to the charger.
2. 2. Plug the USB cable into the Arduino or powered device.
3. 3. Insert the charger into a USB port in the car.
4. 4. Check the datasheet for the maximum current.
5. 5. Wait for the green indicator to light up.
6. 6. Check the output voltage with a multimeter.
7. 7. Power your project.
8. 8. Verify that everything is working correctly.

Mini project

Power an Arduino Nano with an LED and a 220 Ohm resistor. Connect the circuit to the charger and observe the LED lighting up.

Common mistakes

• Do not connect the USB cable to the Arduino without first inserting it into the charger.
• Do not use a charger with a voltage higher than the maximum specified.
• Do not use the charger for more than 30 minutes without checking the temperature.
• Do not use the charger in humid environments.

Recommended accessories

• Arduino Nano
• LED
• 220 Ohm Resistor
• Multimeter

Frequently asked questions

My Arduino does not turn on.
Check the USB cable connection and the charger. Check the output voltage with a multimeter.

The LED does not light up.
Check the circuit connection and the value of the resistor. Check the output voltage.

The charger is hot.
This is normal. If it is excessively hot, turn it off and wait for it to cool down.