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  1. J

    A little thrown together rover.

    I use a MX1508 in a little 3d printed combat bot I did. They are nice. I think a few things have happened even before the virus in China. The CCP cut or fully stopped subsidized shipping @ two years past. Then the Tariffs hit and it rose a little more and now the pandemic. I do agree. As a...
  2. J

    A little thrown together rover.

    That chassis is stable and balanced ok, so not tippy. That's a nice little bot! I like it. Boxy like a Volvo :) I drove one for years BTW. I have the TOF sensor, but not on a bot as of now. I am trying to get inspired to build another big-ish bot again. The last one I did was a land nav...
  3. J

    A little thrown together rover.

    Yeah, the L293 and the L298 are older and have that awful voltage drop with normal DC motors, but have that great redeeming quality of the ENA pins that can be used for speed control with just one PWM instead of two per channel. I use rechargeable AA's if I have room for them as well. I put a...
  4. J

    A little thrown together rover.

    That's a nice little chassis! It should be a nice base to build on.
  5. J

    My Old-School Distraction

    Nice @erco! I still have my Micro Professor MPF-I I got in 1982. I worked a long time to get money for it! I started building a Z-80 computer based on the William Barden book, Z-80 microcomputer design projects. Finished it in '83 I think. All wire-wrapped with my Radio Shack wrap tool. Bought...
  6. J

    Picaxe 08m2 in "low power-mode" ;-)

    Thanks. I should have been a better communicator! Yeah, I know the pics have some LP capabilities and I should have said more, but my thought train is quite "sporadic" at times, I'm ADHD and autistic and my brain and mouth don't get along most of the time ;-). It's good to be antisocial some...
  7. J

    Picaxe 08m2 in "low power-mode" ;-)

    I saw a YT video that got me thinking about a similar problem I had. In pulling the parts together, I decided to not use a low-power uC in it and instead use a 08M2 that has no LP option. Here's my bodge-up :)
  8. J

    Light Dependent Resistor (LDR) and LED lighting

    I'm assuming you have a partnered resistor creating a voltage divider to measure from. What size resistor do you use as the partner? You may be able to change that value to adjust the gain of the LDR. I would make a testbed with a PICAXE reading the LDR and play with that value to find one...
  9. J

    IR decoding

    I actually like them a lot. They are easy to program having a built-in ISP. It only takes Rx/Tx Vcc and GND to program via a serial cable/adaptor. I use sdcc for the compiler and the stcgal (python script) to do the hex file load. PlatformIO actually has support for it and will get you going...
  10. J

    IR decoding

    Sometimes the markings are on the bottom of the chip. I would guess an STC chip, like the stc15w402as or 401. The markings could have bee removed by the maker or they could also be knock-offs. This is a very common uC in toys from Shenzen. They are 8051 cored, easy to program, and are cheap...
  11. J

    IR decoding

    In my Chinese "black box" exploration in the near past, I have seen them just send data in a simple serial stream with no real protocol used. i.e. They made it up as they went along :) Can you see what uC they use to drive the signal? I may be a magic blob or an unmarked chip.
  12. J

    Editor 6 on Windows 10

    So far in my Picaxe tinkering, I have used the compilers only for Linux and that's fine for me. I do have a question though. Since the Picaxe Flagship IDE is written in .net and on 3.5, how hard would it be to get to compile under Mono? I suppose it may be a WPF app and that would be a nogo. I...
  13. J

    Connecting two outputs to one input

    Out of all the DDL I had to do in school, this is the one DDL gate I use A LOT. So much smaller than wrapping nand gates with a 7400 or a real OR gate chip. I don't even think I have any 7400 series OR's and only a few in the 4000's
  14. J

    A little thrown together rover.

    Thanks! I have been in a funk as of late and it's fun doing the stuff I used to like doing long ago.
  15. J

    A little thrown together rover.

    Work has taken a lot of my free time but I did manage a little self-enjoyment coding tonight. :) I have added a couple of LDRs for light interaction/mood-setting and a buzzer for sound. Hot-glue for that homey touch ;)
  16. J

    Maybe the Next Release

    C.3 looks to not be an ADC pin on the 8M2. You would need an ADC pin for testing voltage levels.
  17. J

    Android app

    Still new to the picaxe world, but I assume you should be able to configure an HC05 module at a baud rate you can do picaxe talking with. You may need to do some level shifting on the RX line for the module. I have an "app" I did it using the MIT App inventor a few years back. It's found at...
  18. J

    A little thrown together rover.

    A little status update on my Picaxe bot(s). I remembered I had made this little chassis a few years back. It was made to be used for any uC you wanted but does have *rduino style mounting holes. This one has a Picaxe 8M2 on one of my Pic proto12F boards, 2x Feetech CR servos, and one HC-SR04...
  19. J

    Will 08M2 Run WS2812B LED/RGBWW

    The timing of the control signals to the WS2811 is quite small and on lower-end microcontrollers like the 8M2 is built on would require driving it from the machine level, i.e. Assembly language (machine code) I do not think the Picaxe basic has a way to call ASM or load it. I could be mistaken...
  20. J

    Will 08M2 Run WS2812B LED/RGBWW

    I wonder if the method Ben Heackendorn used with SPI and some glue logic chips if it could be done with one of the X picaxes? See: https://github.com/benheck/SPI-Neopixel As for the APA102, it is very easy to drive with slow code.
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