I've a project that needs a 3 servos 1 fingerprint , 2 RFIDS , OV7670 , 2 2*16LCDs , 3 Ultrasonic sensors , and 8 relay module.
Right now i was testing just 2 RFIDs , 3 Servos , 1 Fingerprint, what happens is once fingerprint is confirmed the one of the servos move half it way then the board DC from laptop and then re-connect.
I've tried to connect it with a 2.0A 5V adapter and all servos works but they don't move as expected they just move a second or two then stop, tried also 12V 1.0A adapter and it's the same.
I've tried with adapters available in my place for now, but i don't know what i will need or if it's a really power problem or not?
Can someone help me?
**keep in mind it's my first project ever.
***prof. chooses that for us
****it's not my study
****I've never studied anything related to smart stuff or arduino (i'm in last college semester)
Post a circuit diagram showing how everything, particularly power, is connected. A photo of a hand-drawn circuit will be fine.
If you're trying to power all those components from the Arduino 5V pin then it's never going to work. Servos in particular need a separate power supply.
Steve
Budget on 1A per servo, unless they are really small or you're not driving them all at once.
slipstick:
Post a circuit diagram showing how everything, particularly power, is connected. A photo of a hand-drawn circuit will be fine.
If you're trying to power all those components from the Arduino 5V pin then it's never going to work. Servos in particular need a separate power supply.
Steve
Does connecting an external 5v 10A for all other components is good enough? Or do i need more voltage?
And actually i don't have any circuit diagram for what I'm trying to do right now...
With no circuit diagram I can't tell what you're planning to do with a 5V 10A power supply. But if the components are all specified to use 5V and you're connecting it up correctly it will probably work well.
Steve