How to connect 12V 20A battery to Arduino Uno & 2 Ultrasonic Sensor

Other Hardware Robotics
1

I want to make Obstacle avoidacne robot using 12V 20A battery.
How I need to make connection?
Which Driver circuit I need to use it?
I need to connect 2 Ultrasonic Sensor for Obstacle detection distance and 2 DC motor

So How I can make connection for such?

2

Start by spending some time using your favorite search engine, and look at some of the robot building tutorials that other people have posted.

Here is one: http://www.societyofrobots.com/robot_tutorial.shtml

3

The Arduino uno can accept
Input Voltage (recommended) 7-12V
Input Voltage (limit) 6-20V

for me, I use 12v to 5v converter before connecting the 12v battery to Arduino, just to be safe.
you can buy a converter or use a car charger

connect the Ultrasonic Sensor power to arduino 5v or 3.3v pin (depend on the sensor type) most of them are 5v but check the datasheet.

for the motor
if it is 12v DC motor you can use "L298N motor drive" (google it)