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  1. Braeden Hamson

    Doubling capacitors in flash?

    If you can find the data sheet for the bulb that's how we'll know. You can look up replacement bulbs for it, or take the bulb out and look for part numbers. The data sheet is really how we'll know. Also, why do you want a longer flash. (Just covering all bases) I assume because you want to open...
  2. Braeden Hamson

    Doubling capacitors in flash?

    What's your goal here? A longer, or a brighter flash?
  3. Braeden Hamson

    I want to connect a water sensor to a speaker

    Can we get a detailed description of your project? Are you perhaps trying to make a drowning alarm?
  4. Braeden Hamson

    I want to connect a water sensor to a speaker

    How experienced are you with electronics?
  5. Braeden Hamson

    I want to connect a water sensor to a speaker

    A really really simple way to do it is to use an old RC car. The radio would go near the sensor and the car would go with the speaker. Its a kludgy solution though. But it's easyish
  6. Braeden Hamson

    Hacking an Isometric Joystick

    This is a tough nut to crack. I put ~1v across the gauge. I put it across different combinations of wires. I'll get voltage out but if I apply pressure to the different gauges, I get no change in the voltage across the circuit. I measured voltage across the whole circuit voltage across the gauge...
  7. Braeden Hamson

    Hacking an Isometric Joystick

    Ahh yeah great idea, I'll try hooking it into an arduino to see what it does.
  8. Braeden Hamson

    Hacking an Isometric Joystick

    Thanks for the info. I just can wrap my head around where I'm supposed to supply the voltage. There's only 4 wires coming out of the device, and a metal plate it's mounted to, perhaps that plate is a ground but I'm not sure.
  9. Braeden Hamson

    Hacking an Isometric Joystick

    I dug a little isometric joystick or "pointing stick" out of an old Lenovo. If you're still confused its a pressure sensitive controller. I think its four strain gauges wired up in a wheatstone bridge. As shown in this patent...
  10. Braeden Hamson

    Forward and Reverse on Low Volt DC motor using solid state electronics.

    Thanks for the info guys
  11. Braeden Hamson

    Forward and Reverse on Low Volt DC motor using solid state electronics.

    It seems buying MOSFETs is hard. I'm actually not using an arduino, I'm using a labjack which for all intents and purposes is basically an arduino. However it's max output is 2.5 volts. I'll be using these in a 12 volt system. So I need to be able to switch on 12 volts with 2.5. Is it reasonable...
  12. Braeden Hamson

    Forward and Reverse on Low Volt DC motor using solid state electronics.

    I have these guys. http://www.onsemi.com/pub/Collateral/NDD02N40-D.PDF
  13. Braeden Hamson

    Forward and Reverse on Low Volt DC motor using solid state electronics.

    Hey guys, I'm wanting to be able to control a DC motor's direction with an arduino. But the arduino can't output the kinda power I need to run the motor. The motor runs on 7 VDC and <1 A. I know it can be done with a DPDT relay. But I have a bunch of MOSFETs already. Is an H-bridge a better way...
  14. Braeden Hamson

    Picture of an optical mouse die

    I used a fresnel lense out of some Google cardboard goggles. The second picture is just my cell phone.
  15. Braeden Hamson

    Portable Power Supply

    Awesome I'll look into buck converters. If I'm not mistaken that circuit can boost voltages too correct? Additionally is there any benefit to using one cell for low voltages?
  16. Braeden Hamson

    Portable Power Supply

    Hello gents, I want to build a portable battery powered variable power supply. Not sure what I'd use it for but, I think it'll be one of those things that when you have it you don't know how you didn't have it before. So I got a laptop battery pack out of a smashed laptop. It has the standard...
  17. Braeden Hamson

    Multimeter Module

    Hey guys So I've had a project kicking around in my head ever since I took the battery pack out of a smashed laptop. I thought it'd be fun to make a portable power supply that provides a few DC volts. Anyway, I'm wanting to fit all of this into an aluminum tube. I was also hoping to have a...
  18. Braeden Hamson

    Vacuum in a Can

    Not to sure what you're doing but could you use an inert gas instead? If electrons are flying through space obviously no, but if you're just trying to avoid oxygen.
  19. Braeden Hamson

    New apartment getting shocked on light switch screws.

    You can tell the difference between getting hit with wall voltage and static. I think the best way to find out is to touch it and keep your finger on there. If it's a quick zap that feels like a flick to the finger then it's static. But if shock continues and feels kind of like when your foot...
  20. Braeden Hamson

    Picture of an optical mouse die

    I got a close up picture of an exposed die in an optical mouse. As far as I know it's rare to have a die so exposed. But in this application it's necessary as light has to reach the die. The coolest part I think is that this is the only active part in the mouse. So all the processing and logic...
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