 | | HB's analog inputs
|
|
does anyone know if the handy board's analog inputs can accept analog current output(4-20mA) from a photo-electric distance sensor? (e.g. the sensor might return 4mA if the object is 1 ft away and 15mA if it's 3 ft away) or can it only accept (...) (26 years ago, 26-Aug-98, to lugnet.robotics.handyboard)
|
| |
| | problems with main()
|
|
I posted earlier in the week about having a problem with the SRAM. I have determined that there is not a problem with the SRAM on the handyboard. The problem is that "main()" is not executing on reset like it is supposed to. The program that I am (...) (26 years ago, 26-Aug-98, to lugnet.robotics.handyboard)
|
| |
| | Re: HB's analog inputs
|
|
(...) Edmund, Typically the solution is to pass the 4-20 mA through a 250 ohm resistor and measure the voltage across that resistor. As long as your A/D input impedance is high, it can be ignored. A resistor is essentially a current to voltage (...) (26 years ago, 26-Aug-98, to lugnet.robotics.handyboard)
|
| |
| | Steppr motor pulse problem
|
|
Hi, I've encounter some problem on using the stepper motor with my self-built driver. I am not using the driver in the HB. I have to build out a driver. The driver chip I use is L298 and logic gate chip is L297 or 374( this chip also use in HB) . (...) (26 years ago, 26-Aug-98, to lugnet.robotics.handyboard)
|
| |
| | Digital Outputs
|
|
I have discovered that I can use PA6 as a digital output and am wondering if the same applies to PA3 if I do not require a piezo buzzer? Thank You Joe Martin joema@mpx.com.au (26 years ago, 26-Aug-98, to lugnet.robotics.handyboard)
|
