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Hi All, April's Circuit Cellar magazine has an article I wrote on one method of hacking the Spybot. I emulated the I2C EEPROM with a PIC. I then mapped the upper 128 bytes of the EEPROM variable space (locations 0x80 through 0xFF) for use as an I/O (...) (21 years ago, 25-Mar-04, to lugnet.robotics.spybotics)
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| | Re: Spybot Hardware Hacking
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(...) Jay, Can you post the details relative to the spybot somewhere? that would be very useful to the community... (21 years ago, 2-Apr-04, to lugnet.robotics.spybotics)
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| | Re: Spybot Hardware Hacking
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(...) Yes, I will at some point. Since the magazine just came out, I won't be posting anything right away. That wouldn't be fair to the publisher, would it? In the meantime, I'm more than happy to answer specific questions about the project. --Jay (21 years ago, 2-Apr-04, to lugnet.robotics.spybotics)
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| | Spybot Upgrade Kit ? was Spybot Hardware Hacking
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(...) Jay, Ok thanks. First of all: Good Job!! I have not read the article but I think the idea is very good. Can you comment a bit on the performances in a scenario in which the PIC would take care of data acquisition from a variety of sensors? (...) (21 years ago, 2-Apr-04, to lugnet.robotics.spybotics)
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| | Re: Spybot Upgrade Kit ? was Spybot Hardware Hacking
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(...) You are not the only one! I am wondering if this could be used to add RF communications to the Spybot? ... and of course additional sensors / motors. // Joe (URL) (21 years ago, 4-Apr-04, to lugnet.robotics.spybotics)
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| | Re: Spybot Upgrade Kit ? was Spybot Hardware Hacking
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(...) example code I think that adding a form of RF communication via the PIC is well possible and the PIC can oeprate as 'communication front end' for the spybot. I believe that Jay's work can boost considerably the capabilities of the spybot. (...) (21 years ago, 4-Apr-04, to lugnet.robotics.spybotics)
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| | Re: Spybot Upgrade Kit ? was Spybot Hardware Hacking
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(...) Performance is an interesting question. For the article example where I used a Devantech SRF04 Sonar and a Sharp GP2D12 IR Rangefinder, the performance is limited by the senors. The SRF04 has a minimum cycle time of at least 10ms (this is the (...) (21 years ago, 6-Apr-04, to lugnet.robotics.spybotics)
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| | Re: Spybot Upgrade Kit ? was Spybot Hardware Hacking
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(...) This is certainly possible. I connected the serial port receiver of the PIC to the IR receivers on the Spybot in hopes of detecting my own transmissions for use as a simple proximity detector. It almost works when the Spybot translucent cover (...) (21 years ago, 6-Apr-04, to lugnet.robotics.spybotics)
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| | RE: Spybot Upgrade Kit ? was Spybot Hardware Hacking
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(...) Just out of curiosity, which H8 is being used on the Spybots? Ralph (21 years ago, 6-Apr-04, to lugnet.robotics.spybotics)
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| | Spybot and RCX I2C Upgrade Kit s
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(...) Jay, I think that both the Spybot and the RCX kits (PCB + parts) would make sense. There is a large community of Spybot owners here that would be just happy to buy the kit and I believe even a larger one for the RCX. We can run a poll to (...) (21 years ago, 6-Apr-04, to lugnet.robotics.spybotics)
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| | Re: Spybot Upgrade Kit ? was Spybot Hardware Hacking
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(...) This is from the RCX internals page: (URL) H8/3297 Product name H8/3292 Part number HD6433292 The link to the datasheet is incorrect. Hitachi spun off its semiconductor business as Renesas Technology. (URL) (21 years ago, 9-Apr-04, to lugnet.robotics.spybotics)
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| | Re: Spybot Upgrade Kit ? was Spybot Hardware Hacking
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(...) Oops - I misread the question. You were asking about the Spybot processor, and I have no idea what it is. I was looking into the RCX processor. Sorry, Jay (21 years ago, 9-Apr-04, to lugnet.robotics.spybotics)
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