 | | Exp Board ETA?
|
|
I was wondering whether there was an estimated date for the availability of the said expansion board for the HB... there is a design and schematics for a proposed Exp Board on the web site from February and I remember a thread of discussion and (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
|
| |
| | RE: Serial Communications.
|
|
Thanks for the info. I would like to see the code and wiring diagram if that's possible. Thanks for the help. John Hatton. (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
|
| |
| | Re: Servo control using Miniboard slaved to Handyboard.
|
|
A friend of mine built a radio controlled walker with six legs using twelve servos and a single BASIC stamp to control the walking. The stamp accepts the PWM from the RC receiver (using the pbasic 'pulsin' command) and outputs the pulses to all of (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
|
| |
| | Servo control using Miniboard slaved to Handyboard.
|
|
As an addition to my earlier message I have a cheaper and possibly more versatile way of controlling the servos. I have obtained information on the Servo16 algorithm by Erik de la Iglesia which runs on a MC68HC11E1 (he mentions using the E9 but the (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
|
| |
| | Serial Communications.
|
|
I am considering using two MiniSSC II servo controllers from Lynxmotion ((URL) to control the servos on a six leg walker using the handyboard as the CPU. The only problem is that the MiniSSC uses asynchronous serial communication. Is it possible to (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
|
| |
| | Re: LM34 temp sensor to handy board?
|
|
I tried the circuit out tonight, and it works! (Mostly.) I hooked up a 1K and a 3K resistor for R2 and R1, for a gain of 4, and the output is roughly linear with the input. Still need to do some more testing. I ended up having to use a +/- 12V (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
|
| |
| | Re: Geting Started?
|
|
Why don't you start by perusing the web site... pretty much all of your questions are answered there. The site's home URL is (URL) in particular: * the FAQ * the "get your hands on a handy board" * the software resources page * the tech docs page (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
|
| |
| | Re: LM34 temp sensor to handy board?
|
|
It sounds like you just want a standard non-inverting amplifier. wire an op amp like this: |\ sensor------|+\ | >-+-analog input of 6811 +--|-/ | | |/ | +----R1-+ | R 2 | GND where R1 and R2 are chosen such that (R1+R2)/R2 is the gain you want, in (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
|
| |
| | Geting Started?
|
|
Hi everyone, I am fairly new to robotics/electronics and was wondering how to get started with the HandyBoard. So what is the best way to get started? I already know how to program more or less in C and a little in C++ can you program the Handy (...) (27 years ago, 21-Jul-97, to lugnet.robotics.handyboard)
|
| |
| | LM34 temp sensor to handy board?
|
|
I've got on my desk here a National Semiconductor LM34 temperature sensor. It outputs a voltage corresponding to 10mV/deg F. So, if it's 78 degrees F in the room, I get a voltage of .78V. I'd like to hook this device to an analog port on my handy (...) (27 years ago, 20-Jul-97, to lugnet.robotics.handyboard)
|
