In some of my electronic tutorials, I connected the circuit to a 9V battery because it is easy to get started and easy to find.
But this is not optimal. The first is because the battery will deplete over time and cannot provide the nominal 9V.
A kindBreadboard power moduleAccept input via inputBarrel jackProvided by battery, 12V adapter or any other source, and provide 5V or 3.3V pulling force to our circuit according to our needs. We will introduce Arduino to our circuit soon, and all of our Arduino circuits will work at these voltage levels.
There are many different products, this is the power module I want to show you, it is part of the Elegoo kit I recommend you to buy, but it is also sold by other brands in the same shape and characteristics, you can search for "Arduino power supply" Check out some alternatives on Amazon:
The accepted input voltage is 6.5V-9V DC. The maximum output current is 700mA.
We connect it directly to the experiment board:
Then, you can independently determine the tension to be applied to the breadboard power cord on each side: 5V, in this case:
Or 3.3V, by changing the position of the jumper:
You can also turn it off by placing the jumper in the middle:
Then, you can use the barrel jack input to connect to an adapter from 12V to 220V:
Press the gray button to turn it on. The LED will also light up:
The USB port does not exist and cannot supply power to the power module. If needed, it can power USB devices (such as Arduino).
There are other output pins on the top, which can provide GND, 5V and 3.3V when needed:
More electronic tutorials:
- Arduino and Raspberry Pi
- Introduction to Arduino
- Arduino Uno rev 3 development board
- Arduino Uno WiFi rev 2 development board
- Introduction to Arduino programming language
- Milli Micro Nano Pico
- The Arduino MKR WiFi 1010
- Introduction to Electronics
- Electronic basics: analog and digital
- Electronic basics: latest
- Basic knowledge of electronics: voltage
- Basic knowledge of electronics: Vcc, grounding,...
- Basic knowledge of electronics: resistance
- Electronic Basics: Short Circuit
- Electronic basics: your first circuit
- Electronic basics: Prototyping using breadboards
- Electronic basics: using a multimeter
- Use a multimeter to measure voltage, current and resistance
- What to buy to start using Arduino and electronics
- Arduino project: make the LED blink
- Arduino built-in LED
- Breadboard power module
- Arduino creation platform
- How to connect to WiFi network using Arduino
- How to run a web server on Arduino