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152 results from messages in beam

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  • I would suggest working with the Original if you want to mod it. But if you want it to be able to turn in more than 1 direction, you would have to completely gut it. I have always been interested in the idea of a circuit that keeps the legs of a 2 motor hexapod in synch while turning, without mechanical aid. Basically, if you want your modded Hexbug to turn without messing up the...
    connor_ramsey@... Aug 14, 2014
  • They're based directly off of BEAM robotics; the early ones can be considered BEAM(except for the RCs). They were just sold at RadioShack, but now they're pretty much everywhere. And some models are very predictable, yes. However, the Crab and Aquabot are a lot less predictable, changing their behavior at irregular intervals. And the Scarab and Nano are designed to behave...
    connor_ramsey@... Aug 12, 2014
  • Thanks! Likewise, I can analyze almost anything, but understanding mechanics to the point of analysis and building it are two very different things. ;) But really, I have a shortcoming on mechanical know how, just the same. Which is why I sort of tend to simplify the mechanics and complicate the electronics. Seriously, on more than one occasion, I tried to build a walker by simply...
    connor_ramsey@... Aug 10, 2014
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  • So I took out my old Hexbug Original out earlier today. I haven't messed with it in awhile, since I couldn't figure out quite how to fix it. Turns out, all I had to do was bend the rear left leg out a little, and it was moving fine again. But I did notice something very interesting while letting it run on the foot of my bedframe. If it encountered the edge of the wood at...
    connor_ramsey@... Aug 9, 2014
  • The sensor doesn't have a part number. Like I said, it is integrated into a purpose-built IC, in the same package as the MCU and DSP and the like. I did look up the part number of the IC, so I have sufficient information to try and reuse it. And I'm not entirely sure how to go about using the cell phone PCB. It is from a Nokia 6101(roughly 8-9 years old). I was surprised to find...
    connor_ramsey@... Jul 30, 2014
  • A free BEAM board? A free experiment? Count me in! Connor.
    connor_ramsey@... Jul 28, 2014
  • It is an optical mouse, indeed. And optical mouse sensors being hacked into [extremely] low quality cameras was the first thing I found when googling what kind of hacks I could perform on the mouse. The problem with this is that the sensor array has to have its own IC, so that the communication between the sensor array and the DSP can be hijacked to retrieve images. Many newer or...
    connor_ramsey@... Jul 28, 2014
  • So... thoughts? I decided that rather than the bicore head manipulating the beetlebot sensors, it should steer a trailing wheel that influences the bot's direction, without compromising the beetlebot's ability to react to danger. Enjoy, Connor.
    connor_ramsey@... Jul 22, 2014
  • I think I've converged on the architecture the computer will use. The 1Mb flash will effectively act as the SSD, and 64K RAM total, one chip for data and the other for the program. The architecture will essentially be Modified Harvard in nature, where the two memories are separate, but the program memory is still capable of internal self modification. Meaning old tricks like self...
    connor_ramsey@... Jul 20, 2014
  • I haven't found anything with a flash micro, but I did find an 8K x 8 SRAM, 4 32K x 8 SRAMs, a 128K x 8 flash, and a small calculator board. With a bit of discrete logic, that's enough to build a rudimentary computer, right? Not an efficient one, as the digits would probably be stored as 7 segment display codes, since that's all the calculator outputs. Each digit, along with...
    connor_ramsey@... Jul 19, 2014