I hope I picked the right section. This seemed the closest fit for my question.
I got a Rasberry Pi B+ and I have an old external hard drive that died. The case for the drive is perfect for the Raspberry Pi.
The Pi has two LEDs when powered up. I do not want to solder on the Raspberry Pi at all for fear of ruining it, but I would like to use two phototransistors (one of each LED) and use them to power two decorative glow LEDs inside the case. The front of the case has a grill and I already turned on the LEDs inside and they look awesome. One of the glow LEDs is a multicolor LED that runs on 5 volts. The other though is an array 5 green LEDs all powered by a CR032 watch type battery (or CMOS batter). It is 1.5 volts.
The Raspberry Pi uses any 5 volt supply (same connector as my Galaxy S4 cell phone). I want to avoid having to have two power cords, but if I do have to then so be it.
Can anyone help me design (just need a schematic) a board that will incorporate the phototransistors, a 5 volt bus to run the multicolor array and the step-down circuit to run the 1.5 volt LEDs and how would you mount the phototransistors over the LEDs?
I was thinking shrink tubing and super-glue. Kinda permanent though. There may be a better way?
I am able to make my own board from a schematic. I've worked a lot with optoisolators on breadboards. I guess this is similar except the LEDs I am working with are external and not inside the optoisolators.
If I am going about this the hard way or all wrong, let me know. I will say that I do not have any equipment that would allow me to solder the micro-components on the Raspberry Pi. My hands are way to shaky and my eyesight isn't what it was. do have a large magnifying glass and looked at the Pi up close and thought no way and getting my soldering iron near that
Thank you very much in advance.
I got a Rasberry Pi B+ and I have an old external hard drive that died. The case for the drive is perfect for the Raspberry Pi.
The Pi has two LEDs when powered up. I do not want to solder on the Raspberry Pi at all for fear of ruining it, but I would like to use two phototransistors (one of each LED) and use them to power two decorative glow LEDs inside the case. The front of the case has a grill and I already turned on the LEDs inside and they look awesome. One of the glow LEDs is a multicolor LED that runs on 5 volts. The other though is an array 5 green LEDs all powered by a CR032 watch type battery (or CMOS batter). It is 1.5 volts.
The Raspberry Pi uses any 5 volt supply (same connector as my Galaxy S4 cell phone). I want to avoid having to have two power cords, but if I do have to then so be it.
Can anyone help me design (just need a schematic) a board that will incorporate the phototransistors, a 5 volt bus to run the multicolor array and the step-down circuit to run the 1.5 volt LEDs and how would you mount the phototransistors over the LEDs?
I was thinking shrink tubing and super-glue. Kinda permanent though. There may be a better way?
I am able to make my own board from a schematic. I've worked a lot with optoisolators on breadboards. I guess this is similar except the LEDs I am working with are external and not inside the optoisolators.
If I am going about this the hard way or all wrong, let me know. I will say that I do not have any equipment that would allow me to solder the micro-components on the Raspberry Pi. My hands are way to shaky and my eyesight isn't what it was. do have a large magnifying glass and looked at the Pi up close and thought no way and getting my soldering iron near that
Thank you very much in advance.