I'm new here there's a basic question hopefully you can help me. I have arduino uno, 2 x 12v volts motor and H- bridge L298N, battery 12 volts . My question is I want to program my arduino uno but im afraid to make this possible since knowing that the 12v battery might damage my arduino and I dont know the wirings if I connect the same battery to the arduino or if i go to the driver. The main goal here is that I want to test the motors if its ok to used arduino uno. I know its a bet confusing but I hope you guys help me thank you. Much appreciated if theres a demo of wirings thank a lot.
No problem! Let me assist with the wiring process and guide you on how to safely connect an Arduino Uno, motors and L298N motor driver using a 12V battery.
Here's a step-by-step guide: Power Supply: Connect the positive terminal of your 12V battery to the VCC terminal on the L298N motor driver and connect its negative end to GND (ground) terminal; this will supply power to it. Arduino Uno power: To power an Arduino Uno, either connect its USB port directly or use an external power source such as 12V batteries directly. As these can potentially damage the board directly, instead use its USB port by linking it directly to a computer or external power supply source for more efficient power delivery. Motor Connections: The L298N motor driver offers two sets of screw terminals marked OUT1" and "OUT2", one for each motor; for instance, red wire from one motor connects directly to OUT1 while its negative terminal (usually black) connects directly to OUT2. Likewise, positive terminal (usually red wire) from second motor should connect directly to OUT3 while negative wire connects directly to OUT4. Motor Driver Control: Connecting L298N motor driver's input control pins to an Arduino Uno requires connecting its input control pins - such as "ENA" (enable A) pin to one of Arduino Uno's digital pins such as pin 9, with two of its "IN1" and "IN2" pins connected to two digital pins such as pin 8 or 7 respectively; similarly "ENB", "IN3," and "IN4" all being linked with digital pins of Arduino Uno. GND Connections: Ensure a common ground reference by connecting the GND (ground) pin of an Arduino Uno with the GND terminal of a motor driver's GND terminal, providing both components with access to an external ground reference source.
Once all connections have been made, an Arduino Uno can be programmed to control motors using an L298N motor driver. When writing this program, make sure that appropriate libraries and functions are used to manage this motor driver and set its speed and direction as desired.
Before uploading or making changes to the code on an Arduino Uno, always disconnect its 12V battery and power it through its USB port or an independent power source.
To help anyone using this thread to solve their own problems, can you please post a copy of your circuit, in CAD or a picture of a hand drawn circuit in jpg, png?
Hand drawn and photographed is perfectly acceptable.
Please include ALL hardware, power supplies, component names and pin labels.
