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  1. CDRIVE

    Simple switch trigger?

    It took a while for my old eyes to focus on your circuit but I see now that the control switching for the heaters are momentary and do in fact switch to the ground rail. I will be quite surprised that the 700mV voltage drop from the diode junction would cause issues. Please post your diode part...
  2. CDRIVE

    Simple switch trigger?

    Somehow you posted your schematic before I posted mine. I want look your print over before I opine any further. Wait! Never mind. Your heaters are NOT switched ON to ground as you described! From what I see in your print the heater elements are relay switched from the high side, not the low...
  3. CDRIVE

    Photoelectric Switch (Triac) Doesn't Work With LED Lamps

    Yes Steve, I'm assuming that you mean if the cap fails (shorts or leaks) the current is routed harmlessly through the load. Chris
  4. CDRIVE

    Photoelectric Switch (Triac) Doesn't Work With LED Lamps

    OK, if you look at the circuit you posted you will note that the LDR along with the .47uF cap shunts current around the Triac gate to neutral through the lamp load. The manufacturer shunts current is through the lamp load to insure that the LDR module will not draw current when no lamp is...
  5. CDRIVE

    Simple switch trigger?

    I was bored so I drew it the way you described it. These heaters may draw substantial current so your Diodes have to be rated > than this. Chris
  6. CDRIVE

    Simple switch trigger?

    Can you draw a schematic of your original circuit with your modifications included? Chris
  7. CDRIVE

    AC socket

    Where are you? Chris
  8. CDRIVE

    Making an FM Transmitter

    You're not going to be supporting a high rise with it. :rolleyes: Trench soldiers worked with much less. ;) Chris
  9. CDRIVE

    My Bike Computer (Battery) Died

    My bike computer is a Cateye Urban Wireless. After replacing the battery I lost the odometer reading that was at ~ 4,280 miles. This model doesn't appear to have any option to manually enter a preloaded ODO reading. Since I'm quite proud of this number I'm not agreeable to simply committing...
  10. CDRIVE

    Microcontroller Usage

    The links contained within this link looks like a great site for anyone interested in PC & uC control. I wish I could speak German. Lots of really long words! Chris
  11. CDRIVE

    what is difference between memory address and memory location

    Damn! I'm glad I've never dwelled on this. I'm more confused now that you've made me think about it! :p Chris
  12. CDRIVE

    help with picaxe

    Try this: start0: high 0 pause 20 low 0 pause 500 goto start0 start1: pause 1000 High 2 pause 1000 Low 2 resume 0 goto start1
  13. CDRIVE

    Pulsated LD

    Here's some reading.. http://www.powerstream.com/9V-Alkaline-tests.htm Chris
  14. CDRIVE

    Pulsated LD

    If that's a 9V battery I see there you'd be well advised to stock up before Christmas. You'll be needing lots of them. Chris
  15. CDRIVE

    5V Pulse Amplification

    Would you please explain the benefit or reason for the current mirror? It's escaping me. On that note, I don't understand how you can develop a 16V pulse from your 12V supply. Chris
  16. CDRIVE

    help with picaxe

    Nope! Just say'n that I wish all programming documentation was 1/10th as complete as the Picaxe documentation. That said,.. I'll be happy to help you, as I'm sure others will be. Chris
  17. CDRIVE

    Help for switching operation

    I'm reading this question very differently than my friends that have replied thus far. Isn't this a simple code question? If it is you need to tell us what uC you're using and what language you're coding in. Chris
  18. CDRIVE

    5V Pulse Amplification

    Possibly something like this. Chris
  19. CDRIVE

    help with picaxe

    I thought I made the answer to this quite clear. I see no point in repeating it. Chris
  20. CDRIVE

    LED Circuit help :)

    Before we can accurately answer your questions we have to know what color LEDs you're going to use. This is because the operating voltage of LEDs is dependent on their color. Micro switches can be purchased here. http://www.mpja.com/Lever-Limit-Switches/products/296/...
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