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Hello. There are several comments below that discuss ways to get more power out of this system. Check those out.
thanks for the idea....I would like to try to light an LED bulb but finding I don't have enough AMPs. Any thoughts on how to achieve this?
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I am trying this for my technology project do u think it is a good idea??
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Using a 12V battery should be fine. You will just want to double-check that each of your components can withstand the voltage and current they will experience. You can find this information in the datasheet for each component. If it looks like there may be an issue, you can increase the 220Ω resistors (the current-limiting resistors) to a value that will ensure a safe level of operation.
Hi thanks for the response! Turns out I was using a photo cell not a transistor so it was looking for all light. From what you were saying that seems like it could have effected the out come.Thanks again!
Oh also I was wondering if there was a way to modify this circuit so it could use a 12v battery as a power source
Depending on the specific photo-transistor you are using, the LED can turn on because of the photo-transistors response to light in your environment (sunlight or even fluorescent or incandescent light). What is likely happening is that these other light sources are "turning on" your circuit. Then when you cover it, the photo-transistor no longer sees the external light and turns off. Additionally, it appears that the light emitted from your IR LED is not the proper wavelength (or your IR LED is not on). Otherwise, the LED would remain on when covering the sensor. Verify your IR LED is actually on, and also make sure it emits the wavelength of light that the photo-transistor is best set to receive. Lastly, eliminate the source of external light that is currently turning the circuit on. If it's something else, you can let me know.
When i built the circut I got the opposite effect... the led would be on then turn off when the sensor was covered...
Yes, that can be done. The main thing you would want to verify is how much current you are using though. With each "cluster" you are adding additional current to your circuit. Soldering together individual clusters that share a ground and power line is fine, there would be no reason the resistors wouldn't work the same way (as long as they were wired properly in their individual portion).
If i do this larger scale, say for a 2' x 3' table. Is it possible to solder each individual "part" together according to your circuit diagram (with the "part" being one complete iteration of the diagram itself)? From here connect all of the ground ends together and then running it as a single unit into the ground of an arduino, and the same for the power ends. the only thing i can't wrap my head around is how the resistors would still work the same
This is your scratch right? If yes then can I use 12v or 5v instate of 9v. If I can what OHM or Kohm resister I need. Thanks
Hello I really like your projact and I would like to make one for myself. I tryed to make one but it wasn't work!! Can you clear me the connection that you did. I saw your picture but it's not clear to me . If you help me then I can make one like your. Thanks
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