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  1. CDRIVE

    PICaxe Vs PIC

    Interesting, but I won't know for certain until I read through the new M2 parts manual. Thanks for the tip though. ;) Chris
  2. CDRIVE

    Digital Pot setup

    That's waaaay more than you need to get started but since I'm an old guy that still loves toys...Soo yes, get it, cause it's compatible with most of their chips. Now that's a 'Development' board, not what you'd use for your finished projects. Your project board won't be much larger than the 08M2...
  3. CDRIVE

    Digital Pot setup

    I'm going to have to consult with the new manual for *M2 parts before I agree. The *M parts did not permit this and had no internal pullups or pulldowns. The manual for the M parts specifies pulldown resistors for all inputs and switching them Hi. Though I used reverse logic (as in my schematic)...
  4. CDRIVE

    Question about RF coil

    I remember many RF, IF coils and transformers being available with multiple slug composites. It wasn't this particular transformer but I once worked for a company that manufactured mil spec linear and log RF amps. We used to keep a variety of slug material on the bench to adjust the transformers...
  5. CDRIVE

    Question about RF coil

    I noticed in the photo that the Ferrite slug that usually screwed in and out from the chassis mount clip was absent in that photo. They were basically a long threaded rod about #6-32TPI with the Ferrite slug on the end and inside the tube form. It leads me to believe that the transformer is...
  6. CDRIVE

    Digital Pot setup

    Justin, your circuit will look like this. Start programming! ;) Chris
  7. CDRIVE

    Digital Pot setup

    Bob, you and my wife have something in common. She was a senior programmer analyst in a Assembler and Pascal but most of her career was spent programming in COBOL. Mainframes still use it. The so called "Glass Ceiling" is a bunch of BS!! The girl retired making >86K! ;) Chris
  8. CDRIVE

    PICaxe Vs PIC

    <snip> You're right, I didn't. Does the software include a robust simulator (no chip needed) that includes: Virtual LCD, Virtual Serial Terminal, Virtual LEDs, Virtual Switches, Virtual ADC Source, Virtual Piezo/Speaker, Wav input file, plus a host of other features? Most important..is the...
  9. CDRIVE

    Digital Pot setup

    Justin, don't practice your soldering technique on the chips. Poor soldering skills can kill them dead. Chris
  10. CDRIVE

    PICaxe Vs PIC

    Yes, I'm quite aware of what a Picaxe is. It's a PIC with a boot loader program and that's where the overhead is. However, it's that boot loader that makes them near natural language. Picaxe basic is very similar to most basics. All the PICs I've seen used C or Assembly, which is no where near...
  11. CDRIVE

    Digital Pot setup

    Justin, did you think I was just blowing wind or that I just like to type???? :rolleyes: If you're going that rout say so now so I don't waste my time. I can tell you with absolute certainty that anything not Picaxe is going to be a h*ll of a harder road to travel. Justin, are you in the...
  12. CDRIVE

    Digital Pot setup

    Well, thanks to Bob I was saved from suggesting a larger Picaxe chip than necessary. The attached schematic uses the last generation 08M Picaxe chip. It's an 8 pin DIP and the smallest in their line. It has been replaced with the 08M2 in the same 8 pin DIP. As you can see on the schematic, there...
  13. CDRIVE

    Digital Pot setup

    Justin, I'm on my way to get a new cell phone and make a pit stop at my watering hole. Hopefully, my head will be clear enough to respond when I get home later. Actually, I always respond after the watering hole but sometimes I shouldn't have. :D :rolleyes: Chris
  14. CDRIVE

    Digital Pot setup

    Yup, I read the data sheet again and, as you say, the time required for repetitive pulsing of the Up-Dwn inputs is not related to the 600mS (hold time) required for auto-increment, So, providing a pulse train from a 555 appears to be doable. It won't give Justin the defined 5 speed steps that he...
  15. CDRIVE

    Digital Pot setup

    Sorry Justin, the answer is no. Why did you rush to buy ten of them? On the up side, they're not a large expenditure and I'm sure you'll have other projects that can use them.
  16. CDRIVE

    Digital Pot setup

    We can form a coalition! :D
  17. CDRIVE

    Digital Pot setup

    Unfortunately, I don't think that will work. The 5228 won't respond to rapid switching of its inputs. Anything under 600mS is considered one button press. If you hold it down longer than that it advances the pot only 4 resistance steps per second. Some of this, I'm think is de-bounce related...
  18. CDRIVE

    Digital Pot setup

    Picaxe has improved their chip line and added some new commands to their language. I have the last version, so I need to download this too! ;) http://www.picaxe.com/ By the way,.. Their simulator is so good that you don't need a live chipset to write code and test it in the Picaxe...
  19. CDRIVE

    Digital Pot setup

    Justin, have you ever done any programming an any of the 'BASIC' languages, like Quick Basic, Visual Basic, etc? Also, what is your time line for completion of this project? While Picaxe Basic is easy to learn, I don't think it's likely that you'll produce a working program without a couple of...
  20. CDRIVE

    Can I Replace this AC motor?

    These motors are not designed to produce a SL of torque so free spinning bearings are a must. Most plain bearing motors usually get stuck because the bearing lube (light machine oil) eventually turns into sludge. For the most part they fail because people forget to oil them regularly. Do NOT use...
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