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  1. M

    Picaxe Kayak Control Project

    Hi guys, Sounds like we are on the same page (or water… whatever) Uh Ibenson, methinks something is amiss with your trolling motor setup. My yak weighs 4x that much & I never go over 50% PWM in a high wind & never need a paddle. With a yak that light, it should be jumping out of the water (i.e...
  2. M

    Picaxe Kayak Control Project

    hi Yex2, Now that’s a good-looking ride! Sometimes it’s great to just paddle around in a shady cove enjoying nature. My idea of heaven is drifting down a slow-moving river with Mark Twain (fishing & smoking stogies). The reason I put a trolling motor on my yak is that in the deep south (USA)...
  3. M

    Picaxe Kayak Control Project

    Yes, still catching fish with it. Decided to stay with the Picaxe-20M2 controller instead of moving to the Pi since it's been so reliable & uses much less current. The drive only draws 2.5 Amps when I'm trolling 2 rods. The battery always lasts longer than I do. Made some minor upgrades: 5...
  4. M

    "Time" variable

    hi Yex2, The Picaxe onboard timer won’t be very accurate (been there done that). It's fairly easy to make a very accurate elapsed time counter using the 1Hz output from a DS1307 (or other clock) into a Picaxe pin. I use it as a "time on water" & "AmpHours Used" display. It tracks perfectly with...
  5. M

    Stack Overflow challenge ...

    hi folks, The following is a little more complicated than many of the "Why won't my LED come on?" type questions I see on this site. However, some of you guys are really ingenious, so it may be of some use or interest. While I agree that never using Jumps (aka GOTOs) is good from a style...
  6. M

    Using a Picaxe and Mosfet to current limit a high power LED

    hi JPU, Nice design from Pete! The easy route is to use a pre-made driver board. They come in various wattages & all you need is a (e.g. 60Hz) variable duty-cycled PWM from a Picaxe to do the current control. The following project has links to get the raw boards or if you’re into making...
  7. M

    20M2 Forklift Figure 8

    hi erco, Cool project! Funny, while watching your video I suddenly saw it grow, sprout a weed-eater head & gas engine. Sure hate yard work in this heat. Hmm… lounge chair, remote control, Picaxe weed-eater… Thanks for the inspiration!
  8. M

    Power Supplies: 2 Switchers 1 Linear 40mm Cooling Fan

    hi folks, WARNING: If you use the USB connector output option on the KYK_PDM7 board described below, DO NOT connect anything UNTIL AFTER YOU HAVE ADJUSTED THE OUTPUT TO +5v !!!! This is a +5v output only, NOT a USB communications connector (Data+ Data- are not connected). Since this is a...
  9. M

    To poll RTC or not to poll RTC

    hi tommo_nz, westaust55 is right, there's no point in continuously reading the RTC. Take a look at proc (aka subroutine) ElapsedTime_Get in BASIC program Picaxe Kayak Control System.bas https://picaxeforum.co.uk/threads/picaxe-kayak-control-project.28063/ It's used for counting "time on...
  10. M

    Maximum number of servos per processor

    hi Daniel, The cool thing about technology is there’s thousands of solutions for any given problem. If I needed a lot of servos for a project, I would use a PCA9685 (Adafruit has ‘em on a ready-to-go board). This gives you 16 channels at 12-bit resolution & it’s I2C so it works with most...
  11. M

    Variable power laser

    hi jacque, Since you’re not dealing with extreme speed, you should probably send your tach through a frequency to voltage convertor. This will give the Picaxe an analog (voltage) signal to work with that is directly proportional to the thread speed. What you need to know is the tach...
  12. M

    Picaxe Analog Inputs Scaling & Calibration

    Yep, the older I get, the more I like to talk (guess that comes across in my coding) . I hope it was useful information. If any of y’all come up with better ways to do the things I post, please feel free to chime in. Always looking to learn new things.
  13. M

    Inteface PIR to 18M2 on 18m project board.

    hi Dan, I played with the SR501 motion detectors a while back & posted a project about using them. They are very cheap & work great in a lot of applications. They have sensitivity & output on-time adjustments. Also, under the little round cover there is a place to mount a LVR if you only...
  14. M

    calibadc10

    hi friis, I recently posted a project that explains (maybe more than you want to know) about using analog inputs with Picaxe. If you are not familiar with electronics, just post the input range in volts of your humidity sensor & the equivalent humidity range &units. I'm sure a lot of folks...
  15. M

    Picaxe Analog Inputs Scaling & Calibration

    This project presents a strategy for the design & calibration of analog inputs for Picaxe processors. The Picaxe is great for most projects we dream up: Simple hardware, a simple BASIC-like language, & a really fine editor with good simulation capabilities. Most projects are a breeze...
  16. M

    1Hz oscilator

    Can't get much simpler & cheaper than this: this is what I use for a "time on water" counter (it matches my Humminbird at end of day) I never use the time & date stuff (don't need another clock) it's also handy if you want to sync multiple Picaxes (or other uProcs) if my memory is correct, with...
  17. M

    Development board that plugs directly into USB port

    hi steliosm, I didn’t want to post links since this could be considered a Picaxe competitor. My buddy & I purchased a half dozen of these when we first came across Picaxe chips back in 2014(?). I think we got them via ebay. The reason we chose these was that they would plug into a...
  18. M

    Opto Isolator Board for Connecting old wireless system to Picaxe (also Old Apache Trick via CorelDraw)

    Geez… too rainy to fish and too old to make love all day. May as well do a little project. This little project is very simple but quite useful. Searching the forum for “opto isolator’ I see a lot of posts so I’m not going to go into a “how it works” dialog. For newbies to electronics: The...
  19. M

    adc stability for volt meter

    hi late_voyager, I didn't want to confuse the issue because it looks like you already had a circuit-board layout, but the next time you do analog inputs to the Picaxe the following info may be helpful. Take a look at the op-amp section of the attached file Kyk_tmi2_sch.pdf. This op-amp...
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