 | | Do It Yourself RF module????
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Hi, Now that the topic of RF commucation seems to arise again, I have a question too. After looking at the RF modules of radiometrix and linx I concluded that: 1. They are too expensive 2. They are probably not available here in the netherlands (...) (28 years ago, 8-Dec-98, to lugnet.robotics.handyboard)
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| | RE: Help with overcharged batteries
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<<Last night we discovered that we had left our Handyboard on ZAP when we thought <<we had left it to trickle. It was left at this condition for about 6 hours. You probably should remove the battery pack, put it in a baggie, and take it to Radio (...) (28 years ago, 8-Dec-98, to lugnet.robotics.handyboard)
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| | RE: Serial interface/ RF data link
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<<snip>> Unfortunately, I have not had any luck. This brings me back to the first point- is it possible to use the serial interface board by just providing the tx and rx lines? <<snip>> In short, no. The serial interface board takes power from the (...) (28 years ago, 8-Dec-98, to lugnet.robotics.handyboard)
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| | persistent var's in IC
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Has anyone had problames with the Handyboard, IC 3.2 and 'persistent' variables? the following declaration works fine : persistent float i; but using an array: persistent float battery_voltage[ 320 ]; always causes an error while downloading : IC> (...) (28 years ago, 8-Dec-98, to lugnet.robotics.handyboard)
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| | Re: Serial interface/ RF data link
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To properly comunicate with any PC you need to convert your TTL TX and TTL RX signals coming from the Handy Board to RS232 voltage levels. The charging board contains this interface IC called the "MAX232" The power wire is required unless you are (...) (28 years ago, 8-Dec-98, to lugnet.robotics.handyboard)
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