 | | Re: mseconds()
|
|
"It's a primitive" means that it's defined in the machine code, in the runtime engine. You can look through the source to pcode.asm to see how stuff works... (URL) . Fred In your message you said: (...) (23 years ago, 28-Feb-01, to lugnet.robotics.handyboard)
|
| |
| | RE: mseconds()
|
|
I'm trying to locate the actual code that comprises mseconds(), but all I can find is a statement saying that mseconds is now an IC primitive. Is there anyway someone can direct me to that code? Thanks in advance (23 years ago, 28-Feb-01, to lugnet.robotics.handyboard)
|
| |
| | Max amps via modified HandyBoard motor source
|
|
Hi all: I've modified the HandyBoard by cutting the PCB trace as detailed at (URL) and I have a couple of questions before I destroy something. I'm connecting two 1500mAh 7.2V NiCd batteries in series to the 4-pin motor power header, and I'll be (...) (23 years ago, 27-Feb-01, to lugnet.robotics.handyboard)
|
| |
| | Re: LEGO Rotation Sensor
|
|
Rob, a few Q's: 1. Can you verify that +9v is being applied to the sensor by transistor Q2. Measure the voltage at the collector, you should see a pulsed waveform (rectangular wave) with +9v on's and 0v off's. (Refer to (URL) What is the (...) (23 years ago, 27-Feb-01, to lugnet.robotics.handyboard)
|
| |
| | LEGO Rotation Sensor
|
|
This is a follow up to my original question about the rotation sensor. When we hooked the sensor up to the oscilloscpe and the Handy Board, we could see the voltage transitions on the scope. Now, we truned the sensor very slow (about 2 ticks per (...) (23 years ago, 27-Feb-01, to lugnet.robotics.handyboard)
|
| |
| | Autonomous robot with radio communication
|
|
Hello everybody, A few years ago I was a regular member of this newsgroup. For my master's thesis I made an autonomous robot that could communicate with a desktop PC using a pair of radio transceivers (RadioMetrix BiM-418-F). The results of the (...) (23 years ago, 26-Feb-01, to lugnet.robotics.handyboard) !
|
| |
| | Infrared communication
|
|
I would like to use Legos IR tower and the Lego remote control to control my Handyboard. What I am looking for is some code to decode IR signals using the built in IR receiveron PA2. Has anyone done that before? THX Chris (23 years ago, 26-Feb-01, to lugnet.robotics.handyboard)
|
| |
| | Re: Lego Rotation Sensor
|
|
There aren't user-adjustable thresholds in my Exp Board LEGO rotation sensor code. Rob, could it be that you are spinning the sensor too fast? In the docs there is a note that it only can deal with 16 rotations per sec. Fred In your message you (...) (23 years ago, 26-Feb-01, to lugnet.robotics.handyboard)
|
| |
| | Re: Lego Rotation Sensor
|
|
Tweek your thresholds! (...) (23 years ago, 26-Feb-01, to lugnet.robotics.handyboard)
|
| |
| | Lego Rotation Sensor
|
|
We are using the expansion board libraries to drive the lego rotaion sensor and seem to be getting funny output to the handy board. We hooked up the sensor to the oscilloscope and we can see the voltage transitions on the screen, but the Handy (...) (23 years ago, 26-Feb-01, to lugnet.robotics.handyboard)
|
| |
| | reading sensors
|
|
Hi everyone, I'm trying to hook up a moisture sensor to the HB but having some errors. These are resistive type sensors so I have it connected to the grnd and signal on the HB of the analog ports. After connecting to the HB, at the C prompt I tried (...) (23 years ago, 23-Feb-01, to lugnet.robotics.handyboard)
|
| |
| | AC/DC Adapter replacement
|
|
Hi. I am building a mobile robot, which should operate during days continued in external enviroments. For this reason I need to replace the voltage adapter of my HB for Lead Acid batteries. I plan to use some Lead Acid batteries like primary feeding (...) (23 years ago, 20-Feb-01, to lugnet.robotics.handyboard)
|
| |
| | Re: Is there a benefit in delegating processing tasks?
|
|
Rainer, thank you, this will most definatly help. It is good that i will not have to desighn this from scratch. (23 years ago, 16-Feb-01, to lugnet.robotics.handyboard)
|
| |
| | Re: Is there a benefit in delegating processing tasks?
|
|
(...) Hi Andy, we did it the way you described, but with a 6.270 board (little brother of handy-board). We earned performance on 6.270 with it, because the only thing we had to do is to parse the string received from serial port. We attached a (...) (23 years ago, 16-Feb-01, to lugnet.robotics.handyboard)
|
| |
| | Re: Is there a benefit in delegating processing tasks?
|
|
Thanks for the insight, I am sorry that I did not mention the main controller would be a Handyboard (implied though due to the news group). This is still a good point and has given me a lot to think about. The slave controller would continue until (...) (23 years ago, 16-Feb-01, to lugnet.robotics.handyboard)
|
| |
| | Re: Is there a benefit in delegating processing tasks?
|
|
The advantage of distributed processing is that you can take a sometimes considerable load off the main MCU. Consider a speed regulator: a sensor is needed to continuously monitor the speed at which the wheels are turning and adjustments in motor (...) (23 years ago, 16-Feb-01, to lugnet.robotics.handyboard)
|
| |
| | Is there a benefit in delegating processing tasks?
|
|
I have noticed low cost PICs (such as OOPic) that are capable of controlling (and getting useful data out of) devices like the Polaroid sonar rangefinder and other devices. Is there a benefit in delegating processing tasks such as this to a (...) (23 years ago, 16-Feb-01, to lugnet.robotics.handyboard)
|
| |
| | power supply voltage
|
|
Hi from France ! I have assembled a Handy Board that works well with the original 9.6 V battery pack, but I would now use a separate power source with bigger motors to have more torque (I use a 7.2 V propulsion pack, with a H-bridge system). Since (...) (23 years ago, 15-Feb-01, to lugnet.robotics.handyboard)
|
| |
| | handy board code
|
|
Hi, I am a begginer programer and I'd like to know if there is anyone out there who has written code for there handy board bot that I could get and learn from? I have all of libraries from the HB site, but nothing that does a full routine that I can (...) (23 years ago, 13-Feb-01, to lugnet.robotics.handyboard)
|
| |
| | Re: Underwater Sensors
|
|
(...) First off, beware that ordinary tap water contains dissolved impurities and is electrically conductive. (Water itself, BTW, is actually an insulator - it's the dissolved impurities that give it conductivity). It usually isn't an issue with (...) (23 years ago, 12-Feb-01, to lugnet.robotics.handyboard)
|
