Hii i need some help with my connections on my board. I have a uno and accidently broke it. I have to connect a server motor to it but it needs a external power source because it drains the power from the board. Not sure why its a S3003 FUTABA SERVO and it uses 4.8v. But anyway i damaged my board. See picture for what i did and please help me with how i can fix the connections for the next board to avoid future damage. Thank you very much
Are we supposed to see anything damaged in the picture?
Maybe you just have a bad wire.
Why do you think you broke the Arduino?
How were you powering the Arduino when it stopped working and where was the servo connected?
the servo was connected to Vin gnd and 9. i powered it with a battery pack 7.2v. i think i broke it because the pin 13 led is on and i cant upload anything
Brinley:
the servo was connected to Vin gnd and 9. i powered it with a battery pack 7.2v. i think i broke it because the pin 13 led is on and i cant upload anything
That sounds like you were feeding 7.2v to the servo - but you said it is a 4.8v servo ?
Don't draw power for servos from an Arduino. Give the servo its own power supply with the servo GND connected to the Arduino GND.
Can you upload a program to your Arduino when there is nothing connected to the Arduino except the USB cable?
...R
Unfortunately not. Ya i made a mistake with the power input. I was told to use that input.
Johan_Ha:
Are we supposed to see anything damaged in the picture?
no the picture is just to see how i wired the servo
Brinley:
Unfortunately not. Ya i made a mistake with the power input. I was told to use that input.
You have three sentences here. But I have no idea what each of them relates to. When you are writing (rather than talking face to face) you need to provide the context for your answers.
...R
Robin2:
You have three sentences here. But I have no idea what each of them relates to. When you are writing (rather than talking face to face) you need to provide the context for your answers....R
unfortunately i cant upload a sketch at all even with everything unplugged.
Robin2:
That sounds like you were feeding 7.2v to the servo - but you said it is a 4.8v servo ?Don't draw power for servos from an Arduino. Give the servo its own power supply with the servo GND connected to the Arduino GND.
Can you upload a program to your Arduino when there is nothing connected to the Arduino except the USB cable?
...R
I used a 4.8v servo motor. but the reason i used a 7.2v power input was i was told to use it because the servo motor drained all the power from the board and prevented everything from working.
Brinley:
I used a 4.8v servo motor. but the reason i used a 7.2v power input was i was told to use it because the servo motor drained all the power from the board and prevented everything from working.
The second part is true if you connect a servo to the Arduino 5v pin.
But it was completely illogical for someone to tell you that the solution was to connect the servo to 7.2v. As I said earlier the servo should have its own power supply - but one with a suitable voltage.
...R
Thank you very much for all the help
The servo is rated for 4.8V or 6V, but not 7.2V. Expect it to draw about 1A or so, so your servo supply
should be rated more than that (1.5A?). Share only the ground with the Arduino, separate power to the
servo.
95% of the servo issues we see are power related - not providing enough current or trying to use Arduino
5V rail to power a servo. Servos and motors can out out voltage spikes and noise and can reset or damage
the Arduino if this is directly on the 5V rail.
MarkT:
The servo is rated for 4.8V or 6V, but not 7.2V. Expect it to draw about 1A or so, so your servo supply
should be rated more than that (1.5A?). Share only the ground with the Arduino, separate power to the
servo.95% of the servo issues we see are power related - not providing enough current or trying to use Arduino
5V rail to power a servo. Servos and motors can out out voltage spikes and noise and can reset or damage
the Arduino if this is directly on the 5V rail.
Thank you very much.