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 | | Re: servo motors
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| (...) What is it supposed to be doing? When you say _it_ doesn't work, what exactly is not working? I'm not that familiar with the routines but it looks like you're shutting off the servos before they can move. I also believe once you turn off the (...) (25 years ago, 2-Mar-00, to lugnet.robotics.handyboard)
| | | | | Converting voltage to resistance
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| This is a dumb electrical question. I am a programmer, and I still struggle with the electrical aspects of this hobby. How do I convert voltage output to resistance. I have an application that turns out 0 to +5 volts. However, as I read the (...) (25 years ago, 2-Mar-00, to lugnet.robotics.handyboard)
| | | | | servo motors
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| hi all i connected a servo to the digital 9 port, downloaded the servo.icb and servo.c files. from the command line i can control the servo. but then i wrote the following very simple code, and it doesnt work. can anyone spot the problem. void (...) (25 years ago, 2-Mar-00, to lugnet.robotics.handyboard)
| | | | | Re: Exp. board Servo
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| (...) Fortunately there is a direct relationship between servo-value and angle. Try different angles (for example 0 / 45 / 90 / 135 / 180 degree) and draw the diagram value vs. angle (for example with MS Excel). You will (hopefully) see a linear (...) (25 years ago, 1-Mar-00, to lugnet.robotics.handyboard)
| | | | | RE: HB's mA consume?
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| Well, you can _greatly_ increase the efficency of the handyboard if you remove the 7805 regulator and replace it with a PowerTrends switching regulator (Digikey sells these among others). I would suggest you run three wires from the regulator to the (...) (25 years ago, 1-Mar-00, to lugnet.robotics.handyboard)
| | | | | RE: HB's mA consume?
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| Thanks your answer Will, well, seems not easy to give a good use to a solar panel in the HB If I want to connect the a panel to the HB charging circuit, it must be 12V/500mA like the AC adaptor? or with less current (maybe 200 mA) , it can still use (...) (25 years ago, 1-Mar-00, to lugnet.robotics.handyboard)
| | | | | Re: HB's mA consume?
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| If your calculations are correct, and your solar panel provides 40 mA, and you get maybe 6 hours of strong, useful sunlight per day, then I figure you'd need eight solar panels and three battery packs, minimum, to keep the HB running all the time, (...) (25 years ago, 29-Feb-00, to lugnet.robotics.handyboard)
| | | | | HB's mA consume?
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| Hi, Today I have tested the time the HB can stay powered with his battery (just the board, without any other device attached), its work during aprox. 8 hs, so because the batteries I use are 600 mA, I believe that the consume of the board is around (...) (25 years ago, 29-Feb-00, to lugnet.robotics.handyboard)
| | | | | Re: HB memory capacity
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| As IC loads each file, it reports how many bytes each one occupies. Just add 'em up. The IC interpreter is said to occupy approximately half of the 32 kB available, so if your code gets up to about 16 kB total, then you need to worry about trying to (...) (25 years ago, 29-Feb-00, to lugnet.robotics.handyboard)
| | | | | Re: Exp. board Servo
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| (...) Well, since it seems these values often vary from servo to servo I usually set them by using the knob function and scaling it down so I can visually see the numbers I'm putting into it and the result on the servo; turning it until it chatters (...) (25 years ago, 29-Feb-00, to lugnet.robotics.handyboard)
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