 | | Re: Battery types
|
|
I personally use a single 12 V 3Ah Gell cell to power my entire robot. I'm using the 7805 with a heat sink and works just fine. -----Original Message----- From: brian-c@technologist.com <brian-c@technologist.com> To: handyboard@media.mit.edu (...) (26 years ago, 29-May-98, to lugnet.robotics.handyboard)
|
| |
| | HB with hacked servos as drivemotors
|
|
Hi, I'd like to use two hacked servos _with_ servoelectronic for a Rug Warrior like robot controlled with a HB. Now I am searching for motor driver functions for IC 3.2 to control the servos via the standard motor functions (i.e. fd(), bk(), and so (...) (26 years ago, 29-May-98, to lugnet.robotics.handyboard)
|
| |
| | Battery types
|
|
...was just wondering if the Handy-Board can run on other types of batteries besides Ni-Cds, such as: NiMH batteries which have higher mAh ratings vs. a Ni-Cd equivalent. Also, will Lithium batteries work with the HB? Are there any performance (...) (26 years ago, 29-May-98, to lugnet.robotics.handyboard)
|
| |
| | Datasheet for TI IC
|
|
Hi ! I am searching for the data sheet of a TI speechprocessor TMS3477 (I have the board of a little speech recorder with 90 seconds capacity and max. 16 speech segments with this chip and I will try to connect this board to the Handy Board for a (...) (26 years ago, 28-May-98, to lugnet.robotics.handyboard)
|
| |
| | IC persistent globals?
|
|
Hello all, I am using neural nets to control my robot, and currently have to download the weights to the handyboard every time I power on. This is a perfect application for using persistent global variables, but alas I am having troubles. My (...) (26 years ago, 27-May-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Polaroid 6500
|
|
jluijk wrote: <snip> (...) The two on the left are + battery voltage and the two on the right are ground. They're doubled up to handle more current, I guess. (...) Make sure that you're getting 9.6 V at the motor power header, and that you have your (...) (26 years ago, 27-May-98, to lugnet.robotics.handyboard)
|
| |
| | Re: please unsubscribe me
|
|
---...--- (...) (26 years ago, 26-May-98, to lugnet.robotics.handyboard)
|
| |
| | Re: unsubscribe
|
|
---...--- (...) (26 years ago, 26-May-98, to lugnet.robotics.handyboard)
|
| |
| | Which R4 should I use???
|
|
I notice that in hbmanual.pdf there is a different value for R4 than in hba.pdf since I used the list of hbmanual, I bought R4=2.94k precision resistor, but in the asembly file it says 3.83k precision resistor. Which one is the good one and why need (...) (26 years ago, 26-May-98, to lugnet.robotics.handyboard)
|
| |
| | Pyroelectric Sensor
|
|
Hello. I have working with a handyboard, and I am trying to obtain information on how to properly use a eltec 442-3 pyroelectric sensor. I bought a complete one with a lens. My objective is for my lego robot to locate either a flame or heat source, (...) (26 years ago, 26-May-98, to lugnet.robotics.handyboard)
|
| |
| | Legos
|
|
Does anyone have any experience with any of the Lego technic systems. I am looking for a car/truck that has motors (or can add motors to), has enough room for a handyboard, and has the rack and pinion steering. I would also need a servo for the (...) (26 years ago, 25-May-98, to lugnet.robotics.handyboard)
|
| |
| | HOW TO UNSUBSCRIBE
|
|
Greetings, This is the periodic friendly reminder that in order to unsubscribe, you must send an email to fredm@media.mit.edu asking thusly. Again, the method for unsubscribing is: 1. write an email saying "please unsubscribe me"; 2. send it to (...) (26 years ago, 24-May-98, to lugnet.robotics.handyboard)
|
| |
| | Distance Measuring Sensor
|
|
Hi ! How is it possible to interface one or more SHARP GP2D02 to the HANDYBOARD ?? Best Rerards Diego (26 years ago, 24-May-98, to lugnet.robotics.handyboard)
|
| |
| | unsubscribe
|
|
unsubscribe (26 years ago, 24-May-98, to lugnet.robotics.handyboard)
|
| |
| | Pad sizes and hole sizes
|
|
I'm working on a board and I would like to avoid much trial and error. I have read much on selection of pad sizes/via sizes and hole sizes but there seems to be some contridiction. Does anyone know what the pad sizes (for ICs), hole sizes (for ICs) (...) (26 years ago, 24-May-98, to lugnet.robotics.handyboard)
|
| |
| | unsubscribe
|
|
unsubscribe (26 years ago, 24-May-98, to lugnet.robotics.handyboard)
|
| |
| | unsubscribe
|
|
unsubscribe (26 years ago, 24-May-98, to lugnet.robotics.handyboard)
|
| |
| | Re: Board not responding
|
|
(...) The most probable cause of this is a dead 6811. (it spoils rather easily... :(Because everytime i have a problem with the board, it turns out to be nothing more than a shot 6811. Even replacing the 7805 with a LM2931T kills it. (26 years ago, 23-May-98, to lugnet.robotics.handyboard)
|
| |
| | Board not responding
|
|
Hi! The handy board was working good before and I haven't used the board for a while. Recently, I ran the downloader few times, but I couldn't download the bootstrap. I think the download mode is ready, but the error message like "Board not (...) (26 years ago, 23-May-98, to lugnet.robotics.handyboard)
|
| |
| | setting the best PWM frequency for DC motor
|
|
hello everyone, I found some information on "How do I set best PWM parameters for DC motors?" from the "Robotics Information" homepage, (URL) inside it described that in order to make current to flow steadily in between pulses, you need to satisfy (...) (26 years ago, 23-May-98, to lugnet.robotics.handyboard)
|
