 | | Line follower kit
|
|
I was wondering if anybody had used the Line follower kit from the robotstore? Is it pretty much plug and play (besides a little programming) for the handyboard? Thanks. Dave (26 years ago, 2-Nov-98, to lugnet.robotics.handyboard)
|
| |
| | Re: DC motor voltage source
|
|
Philip: I depends on how many motor driver ports you want to have on the new voltage. If you have just two motors, then lifting (and wirewrapping) pin 8 for one chip whould be enough. The motor outputs affected are nearest to the chip modified. I (...) (26 years ago, 2-Nov-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Voltage for the DC motor
|
|
Ja, I could not tell you for the life of me what 'type' f a HB it is, but I remember someone once telling me that you could just remove one of the pins from the driver chip instead. This method would be less final (ie, just bend the lead up and if (...) (26 years ago, 2-Nov-98, to lugnet.robotics.handyboard)
|
| |
| | Re: programming help.
|
|
The "<<" is a shift left operator in C 0E is the actual motor port on the Handy Board. (...) mean? (...) between 4 and 7. (...) peek(address) | value). I don't have any documentation here, so I don't know what is stored in 0x0e, but it could be the (...) (26 years ago, 2-Nov-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Bend/ Flex Sensor
|
|
I think its cheaper to get an old Nintendo power glove and Hack it! (...) (26 years ago, 2-Nov-98, to lugnet.robotics.handyboard)
|
| |
| | Re: IR Detection
|
|
Hi Most of the IR LED's sold at Radio Shack are the 840-880 nm wavelenght type. The Sharp tin can requires the 940 nm wavelength IR beam if my memory serves me right, it also requires to be modulated at 38 or 40 kHz depending on the model. This 38 (...) (26 years ago, 2-Nov-98, to lugnet.robotics.handyboard)
|
| |
| | as11_ic
|
|
(...) (26 years ago, 2-Nov-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Voltage for the DC motor
|
|
(...) Sorry, I cannot help you. My board look exactly like the one on the picture. It's a Handy Board v.1.2 I bought assembled from Glasson Research. Does somebody knows what board Phillip is using? -- Eric (26 years ago, 1-Nov-98, to lugnet.robotics.handyboard)
|
| |
| | code segment
|
|
Hi all, I have writen a code, when i download it i received following message. "c:\ic\libs\speed.icb(1): Code and data segments collide -- overflow of 681 bytes" After that I reduced the size of code and downloaded it, It was successfull. I got (...) (26 years ago, 1-Nov-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Mailing List
|
|
I used to work at AOL technical support, I would be very much interested if you could figure out how to use AOL as a POP3, AOL is NOT a POP3 server. AOL is very proprietery, one of the many reasons (and doesn't support DUN - dial-up networking) that (...) (26 years ago, 1-Nov-98, to lugnet.robotics.handyboard)
|
| |
| | programming help.
|
|
hello can someone please tell me what does the following command line mean? bit_set(0x0e, 1 << (4 + motor)); i know that 0x0e refers to memory location $0E but how does bit_set work? is it similar to poke? and more importantly, what operation does (...) (26 years ago, 31-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Implementation question
|
|
Hi Ronald! Ok - my HB is working now. I got the right 1233-10 (10 means 10% of 5v - reset is going up on 4.5v). This seem to work better. Second thing is the 350ms delay seem to be necessary in normal reset. The second thing was that the power (...) (26 years ago, 31-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Voltage for the DC motor
|
|
hi, I noticed that the picture of the HB in the Web page is slight different from mine. There is no thick trace on my HB to be cut. However, the HB in the web page has a thick trace on it ? My version of the board is 1995, Fred Martin. Please help. (...) (26 years ago, 31-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: programming help.
|
|
(...) In binary 1 is represented by 0000-0001 1 << 1 is 0000-0010 aka 2 1 << 2 is 0000-0100 aka 4 1 << 3 is 0000-1000 aka 8 You get the idea? x << y means slide x to the left y times. motor is probably a number between 0 and 3. 4+motor is then a (...) (26 years ago, 31-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Bend/ Flex Sensor
|
|
Someone had inquired about Bend/ Flex sensors... There's one in the new JAMECO catalog: Flex Sensor Part No. 150551 for $10.95 (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Sonar Sensor Problems
|
|
Thanks for doing all this testing and reporting it to us. I do really appreciate it. And I'll vote for the low tech version: use two diodes... -- Eric (...) (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Sonar Sensor Problems
|
|
(...) The dual sonar interface board is simply a small (1.5" sq. or so) experimenter's PC board from Ripoff Shack with the six power diodes, the one resistor, and three header plugs soldered onto it. One plug goes to the HB and the other two go to (...) (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: DC motor voltage source
|
|
phillip: Pine 8 for the L293D is "Motor Power." There are two ways to get to this. 1) Pull the chip from the socket, lift the pin so it points straight up, then wire-wrap a new supply wire to this pin. Or scratch the trace leading to pin 8 U11 and (...) (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | HB Pcode v3.2 Source... (Was: Motor output)
|
|
-----Original Message----- From: Eric Noyau <noyau@apple.com> To: William Bain <willbain@cs.umt.edu> Cc: handyboard@media.mit.edu <handyboard@media.mit.edu> Date: Thursday, October 29, 1998 8:39 PM Subject: Re: Motor output (...) <snip> (...) not (...) (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | debug help
|
|
I just finished adding the motor output circuit to my HB. I have built and tested the interface board. I connected the interface board to the HB to download the test code to test the HB and I keep getting the "wrong port or board mode" error. Not (...) (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Other LCDs
|
|
(...) I just did this. First you need the source code for IC, the compiler, and apparently Unix since the source code requires some pre-processing and the script to do that works under Unix (which I don't have). An alternative method requires the (...) (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: IR Detection
|
|
Transmission and reception of IR data is quite different from using IR just to bounce it off obstacles to detect their presence. To exchange data with IR you will almost certainly have to use interrupt driven assembler code which can be very (...) (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: IR Detection
|
|
(...) Hi Will: What you say might be the reason for my problem hence I bought a matched IR emitter and detector pair from Radio Shack and tried the same thing. Here again, the emitter is sending the signal but the detector is not able to see it. I (...) (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Motor output
|
|
(...) Well, I'm cheap ;^) I'm using the free version. I might be lured into buying the commercial version: I'd sure love to have structs and multidimensional vectors. I think I will miss function pointers... Is there any source coming with the (...) (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: IR Detection
|
|
(...) The Sharp IR detector is designed to respond only to modulated IR signals. The card from Radio Shack will indicate whether the LED is illuminated, but it won't tell you whether it's modulated at the proper frequency. Perhaps that could be the (...) (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Motor output
|
|
On Wed, 28 Oct 1998, Eric Noyau wrote: <snip> (...) way into the supported release of the pcode and libraries? This is a real improvement over the standard one... I believe that IC version 3.2 includes the PWM stuff already. --Will (26 years ago, 30-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Smooth PWM in C
|
|
L.S. I wonder if anybody has got the smooth pwm routines in C? This would help me a lot understanding this particular bit and adapting it to my own needs... Thanks, Jaron Paludanus (26 years ago, 29-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Voltage for the DC motor
|
|
from the FAQ: Using a Separate Motor Power Source: (URL) Eric (...) (26 years ago, 29-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | IRDA and Handyboard?
|
|
Hi all, Electronics Goldmine has some notebook pc IRDA ports for $2! (URL) I think it would be Great to use a couple of these to get 2 Handyboards to talk with eachother. Or, get one handyboard to talk with my Notebook PC (which already has an IRDA (...) (26 years ago, 29-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Config Register error
|
|
When I download the pcode file using either HBDL or DL the pcode itself is loaded successfully but I then get an error from both programs saying the config register is set to 0xFF. I retried several times but the config register always reads 0xFF. I (...) (26 years ago, 29-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | IR Detection
|
|
Hi Everyone: I am trying out the infra red emission and detection with the Handy Board. I have succeeded in the emission part but the detection circuit is not working. I know that the emitter LED is fine , with the help of Radio Shack Infrared (...) (26 years ago, 29-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Other LCDs
|
|
Drew I picked up a 20x4 LCD from B. G. Micro (see their on-line catalog at (URL) and view page 2 - the LCD is the one in the upper right at $8.95, part number LCD1002). For 2x16, it will work just plugging into the HB. I poked memory locations (...) (26 years ago, 29-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | HB woes
|
|
I'd appreciate mucho any help and ideas you all have I am building my HB, finally got the caps and crystal osc. working, and ran the HBDL program to download. All good and fine. I go off and solder in the transparent latch, and while doing so I (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Motor output
|
|
(...) The motor controls in the Handy Board library supports only 8 levels of power. Upgrade! Get the Smooth PWM version made by Julian Skidmore in the software contributed page on the Handy board web site ((URL) will have to do multiple things: 1- (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Motor output
|
|
Hi! When I work with the motor outputs, I found that the outputs are not linear. The "motor(m,p)" changes the output only in an increment 10 of p. Is there anyway I can get a more presiced output? Thanks. Keith (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Implementation question
|
|
Hi All! I'm having exactly the same problem! The download seem to work correctly but after switching off and on the board again it seem not to start over. I have momentarily used another reset device. I dont know exactly the specification but it (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Voltage for the DC motor
|
|
HI, Currently, I'm using 2 dc motors to drive my robot. The voltage of the motor is 12v rated. and the rated current is 300mA. These motors are directly plug into the HD for use. As a result, the robot cannot travelled fast and sometimes halt (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Sonar Sensor Problems
|
|
michael lang kee wrote: <snip> (...) An occasional sporadic reading is normal and can best be handled by returning the median of three readings. Very noisy sonar data like yours might be attributable to noisy power to the board, a weak connection, (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Other LCDs
|
|
Can someone point me in the direction of using a 20 x 4 LCD. I saw a reference on the HB website about recompiling the IC source with a command line switch specifying the LCD dimensions. What do need to recompile, only the P_code.s19 file?? How do I (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Picking a PIC
|
|
In a message dated 98-10-27 13:58:13 EST, ben@wirz.com writes: << Hi Fred, Good to hear from you, feel free to post this to the list. I feel that the flash parts are easier to use because you don't need to wait for the UV eraser to do its things (...) (26 years ago, 28-Oct-98, to lugnet.robotics.handyboard)
|
