Kyle, Thanks for the code. Could you make a recommendation as to what type of gyro would work the best with this code? I have a sparkfun gyro/accelerometer duo...
22251
Tom Becker
b19063
Jul 20, 2007 12:21 am
Kyle Vogt has not been active here for several years, Ray. His Kalman code was posted in 2003. I can help answer some of your questions. Sparkfun's...
22252
radem2@...
rade95
Jul 20, 2007 3:02 am
Thanks Tom. That helps. I may get back to you with more questions, once I am up to snuffs with the code and my balbot project, but I am getting close. rgds...
22253
bonniewietecha
Jul 24, 2007 11:38 am
In basic stamp I used the serialout command to control my soundgin frequency with three 8bit commands as follows. serout 1,9600,[27,88,64] Now with the basicx...
22254
Tom Becker
b19063
Jul 24, 2007 3:15 pm
In the PutQueue documentation example that you've referenced, Pi is a Single-type variable, which occupies four bytes. Tom...
22255
Jenniffer S. Lewin
jen_lewin
Jul 25, 2007 9:25 pm
Based on this provided example, is it possible to daisy chain the 74HCT259? (creating more than just 2 more usable output pins) thanks Jen...
22256
Tom Becker
b19063
Jul 30, 2007 6:20 pm
... There are easier ways to expand BX-24 I/O that might help you. What I/O do you need? Tom...
22257
i_cohen
Aug 2, 2007 10:58 am
Hello all, Does anyone know what is the best way to variably control a 12v electro magnet through a bx24? I need to be able to smoothly change its power and...
22258
Scott Carlson
kosine0
Aug 2, 2007 11:30 am
PWM out to an amplifier. ... -- Scott R Carlson Mechanical Engineering, Rochester Institute of Technology [Non-text portions of this message have been...
22259
Nathaniel Barshay
trinitymishap
Aug 2, 2007 3:21 pm
Hey, I'm trying to interface a BasicX to a MaxSonarEZ1<http://www.maxbotix.com/uploads/LV-MaxSonar-EZ1-Datasheet.pdf>, and have been running into a rather...
22260
Tom Becker
b19063
Aug 2, 2007 4:11 pm
... This sounds little different from PWM of a small motor. I'm sure you can use any brushed-DC-motor control solution like a 2-Amp H-Bridge ...
22261
penguin.rocketry
penguin.rock...
Aug 3, 2007 11:00 am
Hi, I'm trying to use a button, and I am completely confused. When the button is pressed (closed), I want pin 11 to go HIGH. Here is my current code: Option...
22262
Thad Larson
highwayman_3...
Aug 3, 2007 1:27 pm
Change your code to if(GetPin(12) = 0) Then Your switch should connect between pin 12 and ground. By assigning it to bxInputPullup, it will show high unless...
22263
njepsen@...
neil_jepsen
Aug 3, 2007 8:23 pm
Add the following line after your call putpin =(11,1) : else call putpin(11,0) end if. What you are doing is setting pin 11 high, but not setting it to low if ...
22264
Ian Cinnamon
penguin.rock...
Aug 3, 2007 8:46 pm
Thanks for your help. Pullup is what is confusing me, i think. When the switch is closed, 5V flows through it. When the switch is closed, I want Pin 11 to...
22265
njepsen@...
neil_jepsen
Aug 3, 2007 9:22 pm
The pullup is only programmed for INPUTS i.e switches and sensors. A pullup is an internally programmable rsistor ( inside the BX) that is connected to +5 when...
22267
penguin.rocketry
penguin.rock...
Aug 3, 2007 9:41 pm
I was trying to program it, and the dev. kit was powered by 12 volts. The BX24 got hot, I let it cool for 6 hours (it cooled in like 5 minutes, tho) and now it...
22268
penguin.rocketry
penguin.rock...
Aug 3, 2007 11:50 pm
I think I get it now. My BX24 was damaged somehow, so the replacement is coming... In the meantime, I eventually want to be able to fire a nichrome wire from...
22269
Tom Becker
b19063
Aug 4, 2007 6:27 pm
... "force" of the battery... That might be a great spot for an SCR, in the low side of the nichrome load. A signal on its gate will latch it on until the...
22270
Ian Cinnamon
penguin.rock...
Aug 4, 2007 6:53 pm
I know a bit about electronics, but not everything... what's an SCR and ISTM? Thanks! ... -- Ian [Non-text portions of this message have been removed]...
22271
Tom Becker
b19063
Aug 4, 2007 7:17 pm
... Sorry. It Seems To Me. An SCR, a Silicon Controlled Rectifier or Thyristor, is a three-terminal diode that, once conducting, normally stays on until no...
22273
Ian Cinnamon
penguin.rock...
Aug 4, 2007 8:07 pm
The nichrome will actually set off a small pyrotechnic charge (this is for a rocketry altimeter), which releases the parachute. Once the pyrotechnic charge...
22274
meenbombs
Aug 4, 2007 8:08 pm
Putting your name and nichrome wire together suggests you are launching rockets with the BX. From a safety standpoint, I would stay away from SCRs. You could...
22275
Ian Cinnamon
penguin.rock...
Aug 4, 2007 8:15 pm
Actually, when the nichrome wire heats, it heats instantly (it basically melts). Also, the nichrome will only be fired at apogee (the highest point of the...
22276
Tom Becker
b19063
Aug 4, 2007 8:22 pm
... Probably, yes. I suspect most any small SCR will be fine if it can handle the open-circuit supply voltage, the on current, and the gate voltage and...
22277
meenbombs
Aug 4, 2007 8:51 pm
By the sounds of the application an untimely firing wouldn't really endanger anybody so it isn't much of an issue. However, from an explosives standpoint (my...
22278
Ian Cinnamon
penguin.rock...
Aug 4, 2007 9:14 pm
So a MOSFET is better? If so, would you mind recommending a good one? Thanks ... -- Ian [Non-text portions of this message have been removed]...
22279
meenbombs
Aug 4, 2007 10:45 pm
Here is one from Digikey: http://www.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=IRF510-ND They are available from most suppliers. Your application...
22280
Ian Cinnamon
penguin.rock...
Aug 5, 2007 11:01 am
That would be good, but do any companies offer one with free samples (I don't want to pay digikey $10 in shipping and handling for a $1 part)? Thanks ... -- ...
22281
meenbombs
Aug 5, 2007 2:40 pm
I am not sure where to find a sample but Radio Shack (Ugh) has a IRF510 MOSFET. However, it is only good for 3 amps but I suspect it will still work for your...
