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  1. Re: Our dearest friend has passed away. Bye Darrel...

    Darrel....I'm so sorry. I remember very fondly the help and encouragement you gave myself and others so freely. I've been away from pics and this forum since suffering serious heart attack in 2013 at...
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    Re: Electro-hydraulic actuator

    I'm tempted to try out an h bridge for this motor. The duty cycle will be near 50/50 at various loads and will need to switch 1,000 + times a day a couple of weeks in a year. I found this link, looks...
  3. Re: Which software version is currently running?

    Nice idea using the date/time tag. Though sometimes I'll modify a program, find out it doesn't help and revert to a previous copy. More than anything, I'm annoyed I can't seem to match up the hex...
  4. Which software version is currently running?

    I've done some forum searching to no avail.

    I have several working projects created many moons ago. Now I'm trying to nail down the associated PBP program....Sigh, I hope to not make this mistake...
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    Re: Electro-hydraulic actuator

    I have a few 1500 watt, 20 + vdc unidirectional transient voltage suppressors around. Sounds like these would do nicely?
    Also, I'm having little luck finding suitable relays. I was hoping to stay...
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    Re: Electro-hydraulic actuator

    Thanks for the explanations/examples, that is a huge help :)
    I'm not completely clear on using the full wave bridge though, are you using just two of the four diodes?
    Thanks again
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    Re: Electro-hydraulic actuator

    Thanks for taking a look at it. I assumed it was an hbridge switching polarity with a secondary relay to cut power. The unit will draw upwards of 40 amps max, with a typical draw of around 20 amps at...
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    Electro-hydraulic actuator

    I need to control an electro hydraulic actuator from a PIC. I've some experience with doing this, but the actuator schematic has me a bit confused. The data sheet indicates that you swap the + and -...
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    Re: Flowcode 5 Anyone?

    Henrik spelled it out well. I started with basic stamps back in the 90's. I never finished junior high, but have managed to learn enough to be dangerous. My day job involves hiring college students...
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    Re: DT_Ints-18

    No surprise there! Wanted to be sure, running a recently clean install of my OS. I'm working with the new Microcode studio and UMC which is really slick.
    Thanks for all that you do and contribute on...
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    Re: DT_Ints-18

    I would like to try out Darrel Taylor's interrupts for the first time and would like to make sure this link leads to the current version which supports PBP3? The last update appears to have been...
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    Re: UMC loader application

    Thanks Dave, that is an interesting site. I have the UMC loader application working, after banging my head for way to long I figured out that the Microcode loader application had two different...
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    Re: UMC loader application

    I forgot to include, I've got the F2423 blinking an led and have the HSEROUT/HSERIN instructions working. Pic is running with 20 MHx crystal.
    Thanks again
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    UMC loader application

    I've been away from pics for a year or so. I picked up a 18F2423 for a new project and would like to use a boot loader with the chip.

    I recently upgraded to PBP 3 and the new microcode studio with...
  15. Thread: Re: Sparks?

    by Steve_88
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    1,539

    Re: Sparks?

    Hi Everyone, I hope the Holidays have been good to you!

    I have a project involving a 18F252 which uses a linear 5 volt regulator (LM2936). I've quite a bit of capacitance hanging off the 5 volt...
  16. Re: PIC and RTC DS1307 problem - hardware vs software ?

    Good luck, let us know of it helps. A clue for me was that the clock only reset after removing/applying power.
  17. Re: PIC and RTC DS1307 problem - hardware vs software ?

    I had this issue long ago with many DS1307's. I found a Dallas app note that suggests a large negative going spike on the supply rail will corrupt the clock. I verified with a scope that upon power...
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    Thanks Henrik, I'm sure the temperature will be...

    Thanks Henrik,
    I'm sure the temperature will be controlled by an on off action. I'll have just one zone, which when it gets to cold will turn on a calculator pump to bring up the temperature. You're...
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    Re: PID control + radiant heating

    I know Darryl Taylor and others did a lot of work coding a pid project for controlling the temperature of a reptile environment. I'm going to be installing radiant heating in my new basement in the...
  20. Thanks for posting up about the rtc, I'm digging...

    Thanks for posting up about the rtc, I'm digging it.
    Happy Holidays.....
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    Thanks everyone for the suggestions. I liked the...

    Thanks everyone for the suggestions. I liked the simplicity of the DS275, small pin count and that no external parts were required. Sometimes I can't see the forest........
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    Re: RS232 converter

    I've used quite a few DS275 RS232 -> TTL converter chips in the past. I see they are now a discontinued part. Anyone familiar with a similar chip? I really liked the fact it required no external...
  23. http://www.emesystems.com/OL2level.htm

    http://www.emesystems.com/OL2level.htm
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    Hi Brian, Glad you have it working. Can you...

    Hi Brian,

    Glad you have it working. Can you tell a little more about what your doing with the pressure/temperature sensors? I do a lot of data acquisition work involving those types of...
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    Hey Brian, No need to use assembler depending...

    Hey Brian,

    No need to use assembler depending upon yout timing requirements. You can insert pauses in the routines to meet your requirements. This also can makes it easy to read and write...
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