 | | Re: Senshist.icb etc
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hi john, the farnsworth stuff should work. did you download the zip file of programs from the HB site? there should be an as11_ic bat file in it. fred (...) (22 years ago, 20-Jan-02, to lugnet.robotics.handyboard)
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| | Handyboard Sonar question
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I've been trying to connect my sonar module according to the instructions in the following webpage: (URL) However, Since I'm using an expansion board with my Handyboard, the SCI port isn't available. Also, my expansion board didn't come with a (...) (22 years ago, 20-Jan-02, to lugnet.robotics.handyboard)
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| | Re: Help! Hanyboard Assembly Testing problem!---I think solved!
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Hey! I've put in the memory, and the LCD screen, and I have interactive C running! Pretty cool that I can print messages to the screen. So problem solved! Anyone have some good instructions on how to properly desolder a part? I almost screwed up my (...) (22 years ago, 17-Jan-02, to lugnet.robotics.handyboard)
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| | Reaching back to the past ...
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Fred, You recently pointed to the new "cricket" controller. Its pretty cool, however as you recall I am a big fan of the Miniboard, having used several in various robots over the years. I recently got a kit from Microchip that they use to teach (...) (22 years ago, 17-Jan-02, to lugnet.robotics.handyboard)
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| | Senshist.icb etc
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Fellow Lugnuts, I'm working with some of the files in Fred's 'Robotic Explorations' book and would like to use the Sensor History Routines (page 291, Section 6.5.7). Between the HB software pages and the book publisher's website, I've managed to get (...) (22 years ago, 17-Jan-02, to lugnet.robotics.handyboard)
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| | Re: Help! Hanyboard Assembly Testing problem!---I think solved!
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so there was a bridge between Rx and Tx! that would do it. let us know if things are working now. fred (...) (22 years ago, 16-Jan-02, to lugnet.robotics.handyboard)
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| | Re: Help! Hanyboard Assembly Testing problem!---I think solved!
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There was a very undetcible component-side solder bridge between pins 2 and 3 of RP4. I might not know until tomorrow when I can get a replacement for RP4 (apparently I'm not very good at desoldering, and I didn't see the bridge at all until I (...) (22 years ago, 16-Jan-02, to lugnet.robotics.handyboard)
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| | Re: Help! Hanyboard Assembly Testing problem!
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Hi, Thanks for your reply. RP4 has the part # 88102G, and adjacent pairs of pins have resistance of 1k (ie, 4 discrete resistors). Ok, Tell me if this sounds really strange... R15 is installed, but tested at about 1k ohms, not 47k. I remove the (...) (22 years ago, 16-Jan-02, to lugnet.robotics.handyboard)
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| | Re: Help! Hanyboard Assembly Testing problem!
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Sam, can you check the serial input circuit. if this is not correct, then the 6811 won't stay in boot mode. make sure RP4 is a 1Kx4 resistor pack (4 discrete resistors) and not a 1Kx7. also make sure R15 is installed. see (URL) . also, try putting (...) (22 years ago, 15-Jan-02, to lugnet.robotics.handyboard)
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| | Re: Help! Hanyboard Assembly Testing problem!
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Ok, RP4 was fine. I've put a logic tester "MODA" line on the chip (from what I can figure, this is this pin that gets the signal from the stop switch), and it is recieving a signal when I press the stop switch. I verified that the reset pin was (...) (22 years ago, 15-Jan-02, to lugnet.robotics.handyboard)
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