lunes, 10 de diciembre de 2012

Arduino by Davis: “Re: Analog Input Problem” plus 19 more

Arduino by Davis: “Re: Analog Input Problem” plus 19 more

Link to Arduino by Davis

Re: Analog Input Problem

Posted: 10 Dec 2012 01:17 AM PST

Quote
It is a bit overly complex. Why do you go through two FETs before turning on the top FET ?

Well in order for me to drive the top FETs I would need a high gate voltage. The voltage of the arduino is not enough to switch them on. So I used...

Re: SoftwareSerial with ATTiny84 using ATtiny library

Posted: 10 Dec 2012 01:17 AM PST

Just a follow up on a previous post:

I have tried using KnockBang on a Attiny13, with no luck

I get this error:

[code]
In file included from tiny_knockbang.cpp:1:
D:\arduino-1.01\arduino-1.0.1-windows (1)\arduino-1.0.1\libraries\TinyDebugKnockBang/Tiny...

Re: LED Cube interupts

Posted: 10 Dec 2012 01:15 AM PST

Thanks for the help dhenry, I'm pretty happy where I'm at now. I have removed the digitalWrite functions from my ISR function. This is my current code:
[code]#include <avr/interrupt.h>

#define CUBE_WIDTH 4
#define BITS_PER_BYTE 8
#define NUM_BYTES  CUB...

Re: Kriege den SPI Bus nicht zum laufen

Posted: 10 Dec 2012 01:14 AM PST

Sehe gerade meinen Stand der 100% läuft:

[code]#define sclk 4
#define mosi 5
#define cs 6
#define dc 7
#define rst 8 

#define   BLACK           0x0000
#define   BLUE            0x001F
#define   RED             0xF800
#define   GREEN           0x07E0
#define C...

Re: SoftwareSerial with ATTiny84 using ATtiny library

Posted: 10 Dec 2012 01:14 AM PST

Nice write-up rudolf.

My thoughts about Serial Relay and Knockbang.

I think the buty about Serial Relay is that you have two way communication. This makes the tiny environment look and feel almost like an Arduino.

If you want to utilize this feature yo...

Re: Mega 2560 randomly hanging

Posted: 10 Dec 2012 12:55 AM PST

I have the latest bootloader for the Mega2560, the one that fixes the watchdog problems. It also does not have the problems reported in the above thread. Running the test sketch:

[code]
void setup(){
  Serial.begin(9600);
}

void loop(){
  Serial.printl...

Re: Stepper Motor L297 Step Program

Posted: 10 Dec 2012 12:53 AM PST

Thanks this is really help me understand how that step work.

Re: Problema para leer temperatura y luz

Posted: 10 Dec 2012 12:53 AM PST

DaviidPR, lo que tienes esta bien para ver que funciona, pero para pasar esos valores a unidades estandar tienes que trabajar un poco aún el código.

La luz no puede medirse de 0 a 100%. 0% damos por hecho que es oscuridad total (Cosa que por otro caso ...

Bullet sensor build help

Posted: 10 Dec 2012 12:53 AM PST

Hello all,  I need help/advice building a circuit that will detect a bullet passing over its sensors--much like what a bullet chronograph does but I do not need to measure the speed of the bullet; I just need it to detect whether a bullet has passed wi...

Re: Mega 2560 randomly hanging

Posted: 10 Dec 2012 12:53 AM PST

I'm sorry if I seemed a bit short. I meant, the character '!', three times. As in: !!!

Re: Analog Input Problem

Posted: 10 Dec 2012 12:19 AM PST

It is a bit overly complex. Why do you go through two FETs before turning on the top FET ?
If you are going to use four pins to control the bridge then you can compensate for one FET's inversion in your code.
Most H-bridges have only two pins controlli...

Re: Clean, straight-forward MPU-6050 code

Posted: 10 Dec 2012 12:19 AM PST

I tried to do just that: http://playground.arduino.cc/Main/MPU-6050
But it doesn't use the DMP.

Re: Chinese Pcb Manufacturer Reccomendation.

Posted: 10 Dec 2012 12:18 AM PST

I've used PCBcart as well. Very good and they take Altium files so no gerber mistakes which I like. They even spotted a small mistake once and because they had the CAD file they could fix it.

That said, from what I've heard here I may give Sitopway a g...

Re: how to upload contiki to arduino

Posted: 10 Dec 2012 12:14 AM PST

Maybe this is a FAQ, but I see no reference to Arduino on contiki website (rather ATmega128 in Micaz platform ?) On github, the files seem to be 3-4 years old...

Could you provide a small description of the Contiki requirements and features ? It seems ...

Re: Stepper Motor L297 Step Program

Posted: 10 Dec 2012 12:14 AM PST

I have a stepper  motor application that uses switches that manually command movement of the motor.  The software uses a while loop like this:

while(CWCommand()) rotate(CW);//Single step CW while switch is ON.
while(CCWCommand()) rotate(CCW);//Single s...

Re: MCP2200

Posted: 10 Dec 2012 12:14 AM PST

E pensare che rileggendo il post che ti ho inviato poco fa e guardando gli schemi di arduino ed MCP2200 la soluzione era davanti agli occhi.......Beh ,io dico sempre che sbagl...

Re: To Bing or not to Bing

Posted: 10 Dec 2012 12:12 AM PST

I get the same.

Confidence--

______
Rob

Re: MCP2200

Posted: 09 Dec 2012 11:42 PM PST

Ciao astrobeed e grazie per il tuo intervento.
Quote
Non serve assolutamente nessuna pull down, la situazione descritta da Tonid è semplicemente assurda e può essere dovuta solo a problemi hardware sulle sue schede.
Vedo anche io molto strana ...

Re: Kriege den SPI Bus nicht zum laufen

Posted: 09 Dec 2012 11:42 PM PST

[code]#include <ST7735.h>
#include <SD.h>
#include <SPI.h>

// If we are using the hardware SPI interface, these are the pins (for future ref)
#define sclk 13
#define mosi 11

// You can also just connect the reset pin to +5V (we do a software reset)
#de...

Re: Kriege den SPI Bus nicht zum laufen

Posted: 09 Dec 2012 11:40 PM PST

Das mit dem Code-Tag lief etwas schief bei meinem letzten Post.

Ja, habe das im Kommentar getestet, funktioniert dennoch nicht.

Kann es irgendwie an der SPI.h liegen, ohne dass ich es im Compiler mitkriege?
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