 | | Re: Expansion interface status
|
|
(...) To Fred and others, I've been thinking about this off and on for over a year now, and since I now have parts I'll finally get my HBs into something more than just board status. Robots eat I/O pins for lunch. Sensors eat input pins and (...) (28 years ago, 22-May-96, to lugnet.robotics.handyboard)
|
| |
| | Re: Expansion interface status
|
|
Do you think Scott Edward would consider selling just the processor? The expansion board could be made to accept Scott's processor or an unprogrammed one if someone had a different application. Which processor does he use anyway? The other thing (...) (28 years ago, 22-May-96, to lugnet.robotics.handyboard)
|
| |
| | Re: 6 servos and RS232...
|
|
(...) From memory of my designer engineer days, the EIA RS232 specification quotes something along the lines of: logical level RS-232 level zero or idle -3V to +15V one +3V to -15V The spec gave maximum slew rates for signals and such specifics such (...) (28 years ago, 22-May-96, to lugnet.robotics.handyboard)
|
| |
| | RE: 6 servos
|
|
You can hook it directly to a PC serial port. Here is the note on it: 1.Controls eight hobby (R/C) servos. 2.Opto input takes RS-232, -422,-485, CMOS and TTL. 3.Baud rate configurable for 2400 or 9600. 4.Addressable up to 32 controllers on one port. (...) (28 years ago, 22-May-96, to lugnet.robotics.handyboard)
|
| |
| | Re: 6 servos
|
|
(...) Just to make sure it wasn't a typo...so, the TTL level is "ative low"? Also. Does the Scott Edwards board have the ability to be connected to a computer? or do you need a "TTL to RS232 converter"? (28 years ago, 22-May-96, to lugnet.robotics.handyboard)
|
