dandielin
Hi my name is Dani, I'm from spain and I'm studding for a degree on electronics, but I always love robots, and now I'm trying this amazing board. I just build my first robot whit this board. I'm controlling 4 motors whit the H-bridge, 2 servos X and Y axis for camera. Just and easy and fast build. I'm also controlling the robot from a joystick. But when I add the servo for de ultrasonic sensor and the ultrasonic sensor, the boards start failing, now when I connect the ez-board whit the computer and start de radar scan, the led on the board stop working, and auto disconnect from de computer, I don't know what I'm doing wrong, pls help. The servo for the ultrasonic sensor is connected on the D7, and work whit the horizontal servo (it moves nice). The trigger port on D19, the echo port on D18, and vcc on a vcc port, and ground on a grout port Thx for the help. If you need more pics or info pls ask
Ok I have tried to start radar whit no servo, and same error, so error between servo and ultrasonic discarded. And no, the ultrasonic sensor is not hot, but he don't have no time to heated, because turn off in no time. But likely ultrasonic sensor is broken? It's new. I try to buy a new ultrasonic sensor? A lot of thanks for the help
Dandelion, You may want to check the wires going to the sensor. The terminals might have bent and they are shorting out, or it might just be wired incorrectly.
If you have checked that the connections are correct, and that the sensor is not touching metal anywhere, then it could be a faulty sensor. I found this offer very cheap sensor:HCSR04
I too would say to check the connections on the sensor.
Ensure no shorts. Most do this by using heat shrink sleeving over the pins on the sensor.
ok finally work, I check the wires connections and they are correct, but I changes the echo and trig port, and works now, for what I see in the tester, the D18 and D19 pin don't works correct, but I'm not sure of that. Thanks to all for the help I hope I can put a video of the robot son
Ensure you had D18 and D19 connected correctly. Ground (darkest wire, black or brown) towards the chip, Signal (white or orange) towards the edge of the board.
Also ensure you haven't shorted the underside of the board on anything.
D18 and D19 should work fine.
Sensor is working great thanks to all, and don't understand why doesn't work when I use D19 and D18, but if I use D15 and D17 yes, I try de D19 and D18 5 times
Really thanks to all