The Project Idea is very simple.
The Ultrasonic sensors will detect a object and then the Servos will lift the wall.
There the two walls for 1.5kg each. From the servos the 2 servos will lift a wall.
I am having problem in selection of battery.
Can anyone tell me of what Voltage and mah battery do I use for my Project.
Thanks!
Do you mean MG996R, with stall current 2.5A? If so, best to use a heavy duty rechargeable battery pack (e.g. RC racing type), 4.8 to 6V, capable of 10 Ampere discharge.
Be sure to solder servo power connections, or use quality connectors with a servo power distribution PCB.
If it was my project, I would take the easy approach;
Measure the current that flows when lifting the wall.
Decide how often you want to lift the wall.
Do the sums.
Because friction in the mechanics of how the servos lift the wall can have a significat effect on the current used, I doubt very much you can 'calculate' or even guess at the curent used, and hence the batery capacity needed, you just need to do measurments.
Get the project working using mains supply. When the project is ready You can measure currents, using the specified frequency of actions, and calculate the capacity of the battery.
Hopefully the installation will sit idle for all, or nearly all, of the time.
I want to control TowerPro MG996R servo motor with arduino. I have the code also. but i dont have the battery.
The Specifications of TowerPro MG996R Servo Motor
Operating voltage: 4.8~ 6.6v
Current draw at idle 10mA
No load operating current draw 170mA
Stall current draw 1400mA
can anyone help for selection of battery
Please tell me the specific voltage and mah I need for my project