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  1. CDRIVE

    Hi everyone

    I'm moving through an emotional period in my life so I wanted to be the first to give you your first "Like" for the words in bold. I'm certain it won't be your last....;) Welcome, Chris Edit: That should say ... "emotionally retrospective period"
  2. CDRIVE

    I want to program microcontrollers. Tell me what to do next.

    Young man I've re-read this well structured question a few times. You have nothing to excuse yourself for. Welcome to EP. Chris
  3. CDRIVE

    Serial communication problem.

    I have no idea where you got this..... https://www.electronicspoint.com/attachments/circuit-png.39218/ What I do know is that I didn't give it to you. My doctors have me on all sorts of meds but none that would burn out my brain to that degree! Chris
  4. CDRIVE

    Serial communication problem.

    To prevent my head exploding and if I beg you, will you buy one of these? https://www.ebay.com/itm/M328-LCD-12864-Transistor-Tester-DIY-Kit-Diode-Triode-Capacitance-LCR-ESR-Meter/351639129340?epid=601907935&hash=item51df534cfc:g:vFIAAOSwX~dWp0nk
  5. CDRIVE

    Morse code led without a micro controller

    I do believe that we just gained a new and sure to be valuable member. Welcome aboard Gumby. Chris
  6. CDRIVE

    I dont know what is this component in my circuit

    I've been old that schools in Israel are no nonsense institutions but this is insane! Please tell me that this is college level. Even if it is, having students messing with 240VAC mains is BOTS! :eek: On the other hand, if I were a personal injury attorney I'd be licking my chops at all the...
  7. CDRIVE

    Morse code led without a micro controller

    If the goal here is to use components you already have in a box why limit yourself to solid state? :) Chris
  8. CDRIVE

    Serial communication problem.

    I was referring to this statement. If that's happening then you have miss-wired it and you could damage your serial port. On the other hand I may be misinterpreting you. Chris
  9. CDRIVE

    Serial communication problem.

    Let's just hope you didn't fry the Serial Port. What you described is close to a short to gnd because the base emitter junction will pull it down to ~0.7V with the absence of the limiting resistor. Chris
  10. CDRIVE

    Serial communication problem.

    Yeah, that's a good idea. Especially the schematic. Are you sure you have things straight now? Chris
  11. CDRIVE

    Cm3024z charge controller

    After opening the user manual pdf I spent the better part of the day extricating my system of some unwanted trash. I'm afraid that I'm now too gun shy to continue participating with this topic. Good luck. Chris
  12. CDRIVE

    Cm3024z charge controller

    Do you have the CM3024Z User's Manual? Chris
  13. CDRIVE

    5second dark triggered timer

    Oooo, I used to catch those but I usually caught words and phrases. Like: We. Not allowed to use IC's, MCU's, etc. Needed this yesterday. "I'm" or "we're" not permitted to use ...... Must provide circuit description including theory of operation. Chris
  14. CDRIVE

    5second dark triggered timer

    Maybe I'm missing something. Where did you find (link) that circuit? Chris
  15. CDRIVE

    Serial communication problem.

    When I said that I tested it with a Loop Back Tester it should have been a clue that it's quite real. ;) Chris
  16. CDRIVE

    Button to button circuit

    That explains it. By the way I don't know how AG did it https://www.electronicspoint.com/threads/button-to-button-circuit.286255/#post-1749342. Maybe he's psychic? I read this post (at this point it's short) from the beginning and I can't find any such info from the OP. If AG is correct and I...
  17. CDRIVE

    Button to button circuit

    Bob, what are those other 2 schematics for? Chris
  18. CDRIVE

    Electrolytic capacitor questions (reversed polarity)

    No, don't do that. With a 7VDC supply you will need a 200Ω resistor in series with your LED. This is based on the voltage drop of 3V for a White LED. Chris Edit: Just saw Kelly's reply. Yeah a diode across the LED (Diode Cathode to LED Anode) if the supply is AC.
  19. CDRIVE

    Cm3024z charge controller

    Is this an ebay or amazon item? You should post the link. Chris
  20. CDRIVE

    Electrolytic capacitor questions (reversed polarity)

    You used exceedingly poor logic. Before the cap replacement it worked poorly (undefined statement) but it worked. You're unsure of the cap's polarity but solder it up anyway. It then blows the fuse when powered up. Instead of a logical response to a blown fuse that didn't blow before you try...
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