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Re: Switching a large DC load   [2 Articles]

Tom, It could be resistive or inductive: a lamp, horn or any other type of alarm-type device. FlyerX --- In b...@yahoogroups.com, Tom Becker wrote: > > What is the ...

H-Bridge issue   [7 Articles]

Hi. I am a newbie in the fascinating world of BasicX. I have a BX-24 and had started a project of using BX-24 to run an H-bridge motor controller. FYI, I am a Mechanical Engine...

Potential BasicX User & Floating Point Math   [2 Articles]

Hello, I stumbled across microcontrollers at Fry's a couple of years back. I purchased a Parallax kit and found it intriguing and fun. Then I discovered picaxe and became ad...

Re: Need some help with Power MOSFET driver   [2 Articles]

> ... Charging a 260VDC battery. Can you show us the high-voltage power supply and load circuit you're using now? In general, PWM is very easy since it is digital and the...

Need some help with Power MOSFET driver   [4 Articles]

I'm using DACPIN out of the BX24 to drive an opamp. The opamp then drives a MOSFET. This circuit works but the heatsink gets very hot, like 150 degrees F pushing 1.25 amp...

Re: Hardware Help   [2 Articles]

Also, if you move the sounder to PD4, PD5 or PD7 (it's on PD6 now), you can use PWM, which can provide more complex sounds, to generate the tone instead of bit-banging it. PWM u...

DAC code needed   [4 Articles]

I have been away from my beloved BX-24 chores (other than buying a Kubota BX-24J) and now find I have a project that needs a BX-24. I need to get a DAC going with 0-5V from 0000...

Re: Is this the end, my friends?   [2 Articles]

Hi, Just in case there is another that nobody mentioned here. Is the Basic Micro is pin compatible with all mentioned here plus the IDE is super. You can display all variable...

Brushless motor control with RC controller   [3 Articles]

Hi, I am trying to control an Atlas brushless motor using an Atlas Black motor controller. My problem is I do not know how to signal the motor controller correctly using Basicx....

Re: 12v electrical systems   [2 Articles]

Food for thought: A 12v generator has trouble keeping up with headlights and windscreen wipers and is closer to 12v than a modern alternator. Recently I purchased a hunting 12v...

Re: Kalman Filter Code   [3 Articles]

Im really struggling to get this to work with ADC accel unit (im using 5dof board from sparkfun). Anyone sucessfully got this working using ADC gyros and accellerometers rathe...

Re: Re: Button code not working   [2 Articles]

> ... ISTM? 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 forwa...

Re: Controlling an electro magnet

> ... variably control a 12v electro magnet through a bx24... This sounds little different from PWM of a small motor. I'm sure you can use any brushed-DC-motor control soluti...

Re: Re: Kalman Filter Code

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 --ray ----------...

Re: Kalman Filter Code

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 accelerometer/gyro breakou...

Re: Re: InputCapture and PulseOut

> ... and put them out to 12 channels [] 1usec resolution [] between 4 and 8 msec. Not a trivial task. I suspect you will need additional hardware which can probably be ...

PWM to I2C   [4 Articles]

Hi Guys Im having a problem where the need to read 5 channels of PWM is causing my control loop to run very slowly (for obvious reasons). So I would like to move this job o...

Processor math speed   [2 Articles]

I'm am mixing some PWM signals and storing them as global variables (about 50 variables) to be used in different modules. I can store them as integers, but would like to do som...

Re: Kalman Filter Code

I see this code is for PWM generating sensors, have you tried this code with ADC type? Cheers Ben ...

Vex: R/C signal generator

For some time, I've been intending to assemble a joystick and processor to generate a standard R/C ~1.5mS/50Hz PWM stream. I did not need the RF link of a transmitter-receiver p...

PID Question   [4 Articles]

I am in the mechanical field (I took a systems and controls class about 4 years ago) however I do dabble in quite a bit of electronics (BX24 related) on the side. A project ...

Slow BLDD motor drive   [4 Articles]

I'm trying to slowly drive a small 14-pole, 12-coil brushless outrunner motor via three channels of H-bridge and all three BX-24 PWM signals that synthesize three-phase sinusoi...

Dual Background Pulse trains, With Different Pulse Width

I have two stepper motors that i am controlling the timing of via a pulse train. (1 pulse = 1 step) I need to send a different pulse train to each motor... each of a differen...

Re: Re: BasicX RC mixer

Right now I have a small table top robot with hacked servo motors. I also would like to use this with the battle bot that uses victor speed controlers. They take in the servo s...

Reading multiple PWM sources?   [2 Articles]

Thanks in advance for your advice... I'm totally stumped. I would like to read two PWM sources with the BX and output a combined signal, somewhat like making my own servo mixer...

Re: Control a brushless dc motor   [2 Articles]

Hi Idan, typically, an amplifier is used to power industrial brushless servo motors (not the hobbyist RC toys). The controller (the BX24 in your case) sends out a voltage co...

accurate digital to analog conversion   [3 Articles]

Dear all, I need to drive a pump laser of an EDFA( an optic device) by using the output of the BasicX. At begining , i had used the PWM signal passing throught the low pa...

Re: CpuSleep   [3 Articles]

> ... CpuSleep... If you want to sleep the processor to save power, you must: - disable all I/O devices - float all processor pins - prepare the wakeup mechanism (a ...

Re: motors: how much power   [4 Articles]

For servo specs: http://www.gsal.org/articles/Servos/servo.html Just go on a click on the brand you like. Everything is put in inch / ounce. That means that from the ce...

Measuring PWM   [2 Articles]

Hello all, I'm looking for a simple way to measure multiple PWM signals at one time. Can anyone suggest a method to convert PWM to voltage to avoid the need to actually time...

The PWM filter   [3 Articles]

Somebody tell me the PWM can be used in the Digital to analog conversion, and it is the best way to convert the digital output of the basicX microcontroller. do anybody have ...

Re: Temperature control

I had posted PID code for BX24 on this forum about two years ago. It was in "Files" area but now the whole area looks different. But it must be there somewhere. This code worked...

Re: Interfacing basicx with DC motor with encoder

> ... how can I interface two DC motors with their respective encoders to BasicX... You'll need to solve have two hardware interface issues and write some code to get your mo...

Limit of bx-24p capabilities   [5 Articles]

hello, I am currently looking for a microcontroller to power a micromouse=20 project that i will be working on in the next few months. I had my=20 mind set on the bx-24p, but ...

Re: Sinking capacitors   [6 Articles]

Good ideas, Tom. Switching a parallel R with an FET (or, I imagine, a 4066 or similar) is probably better than switching caps. Changing the R should not ring the PLL's bell lik...

Slow posting

Odd. It's now 17:00 USEDT. The note I wrote about PWM, at 07:00 this morning - on the Yahoo group web site, like this one is being written - just appeared on the group with a t...

Help my PWM

Hi~ =20=20=20=20=20=20=20 Question about PWM output: =20=20=20=20=20=20=20 I am using BX24=A1=A6s PWM (pin26) to control a 24V DC motor with a = driver LMD182...

PWM output question   [2 Articles]

Hi ~ =20=20=20 I have a question about PWM output of BX24. I use BX24's PWM output to control a dc motor with driver LM18200L, and I= set the PWM rate-setting as 1 and 8-b...

Re: Hobbs Meter

CountTransitions. Unfortunately, I need to do some pulse counting for some low speed square waves at the same time. If the pulse speed were faster, I could keep the time inte...

Re: 20 Hz squarewave

> > ... to produce a 20Hz squarewave... > ... Task switching will result in some irregularity with this method. I spent some time looking at a couple of techniques to generate ...