Hello,
I am new to the forum and have searched several places with no luck. I am an engineer, but not electrical, so have basic understanding of circuits, but could really use some help on this little project.
I am trying to create a series of LED lights that count down to a start in about 3 seconds or so. It would need to be adjustable a bit to make this work. Here is the actual project detail:
I have a deaf dog that loves chasing small tennis balls. She is pretty obsessed about it and we purchased a iFetch electronic ball thrower. She can bring the ball right next to it, and has put the ball in it a few times. The disconnect is that the device uses sound to indicate when the ball is about to be thrown. Other dogs use that as a cue, but she can't hear it. I want to connect a circuit to the existing device and have a set of LED's light up when she drops the ball into the device, then a series that "counts down" to when the ball is thrown. If you are familiar with the way drag racing is started, it would be similar.
If someone could point me to a reference or sketch up a quick circuit if you have that skill set, it would be most helpful and I would be very grateful.
The device has a standard US 120 volt plug / transformer that outputs 9v at 3A. I am assuming I can simply tie into the existing circuit that has the beeper. Photos show the device and the LED's on the back that indicate if it is on low, medium, or high. It doesn't look like I can post photos yet, so you can see the gadget on the manufacturers site here: https://goifetch.com/products/#ifetch-original
I am new to the forum and have searched several places with no luck. I am an engineer, but not electrical, so have basic understanding of circuits, but could really use some help on this little project.
I am trying to create a series of LED lights that count down to a start in about 3 seconds or so. It would need to be adjustable a bit to make this work. Here is the actual project detail:
I have a deaf dog that loves chasing small tennis balls. She is pretty obsessed about it and we purchased a iFetch electronic ball thrower. She can bring the ball right next to it, and has put the ball in it a few times. The disconnect is that the device uses sound to indicate when the ball is about to be thrown. Other dogs use that as a cue, but she can't hear it. I want to connect a circuit to the existing device and have a set of LED's light up when she drops the ball into the device, then a series that "counts down" to when the ball is thrown. If you are familiar with the way drag racing is started, it would be similar.
If someone could point me to a reference or sketch up a quick circuit if you have that skill set, it would be most helpful and I would be very grateful.
The device has a standard US 120 volt plug / transformer that outputs 9v at 3A. I am assuming I can simply tie into the existing circuit that has the beeper. Photos show the device and the LED's on the back that indicate if it is on low, medium, or high. It doesn't look like I can post photos yet, so you can see the gadget on the manufacturers site here: https://goifetch.com/products/#ifetch-original