Arduino by Davis: “Re: please help!!!” plus 19 more

Re: please help!!!
Re: my arduino-projects: laser harp, thermoscan, 3d-scan, segway
Re: Bigger power supply
Re: my arduino-projects: laser harp, thermoscan, 3d-scan, segway
Re: Negative voltage from a summing opamp
Re: Siemens TC35 GSM Modul
Re: Frequenzimetro Digitale con micro ATMEL - FINITO -
Re: Onewire temperature sensor, just getting "no more addresses"?
Re: Bricked my ATTiny84?
Re: atmega8a-au come programmare con arduino?
Re: Bewegungsschranke
Suggestion: motor for medium-high load
Re: 433mhz reciever et RC-SWITCH
Re: loop nel loop
Re: nRF24L01+ and roles
Re: Problem with hardware serial on ATtiny 4313
Re: Move line in char array
Should I start with Arduino?
Re: 2 push buttons as switch to control 2 leds,
Re: Problem with hardware serial on ATtiny 4313

Posted: 25 May 2013 02:37 AM PDT

There's more to controlling a servo than just the pulse width.

The pulse has to happen at the proper frequency. Typical servos require around 50Hz pulses, with the duty cycle lasting between around 800uS and 2ms for 0° to 180° - actual values vary dep...

Re: my arduino-projects: laser harp, thermoscan, 3d-scan, segway

Posted: 25 May 2013 02:35 AM PDT

Third my 3D-ultrasonic-scanner, based on the same servo-plattform like the thermocam.

Re: Bigger power supply

Posted: 25 May 2013 02:34 AM PDT

Fungus, do you grow on trees? or just humans?

Re: my arduino-projects: laser harp, thermoscan, 3d-scan, segway

Posted: 25 May 2013 02:34 AM PDT

Second my cheap thermocam, using a Melexis 90614-DCI with 5°-resolution

Re: Negative voltage from a summing opamp

Posted: 25 May 2013 02:33 AM PDT

You need an opamp to convert the range into a range of 0..5V.
Perhaps a simple solution with 2 resistors is also possible.

Is that summing opamp powered with a negative and positive voltage ? Could you change that ? Could you replace that summing opamp...

Re: Siemens TC35 GSM Modul

Posted: 25 May 2013 01:52 AM PDT

Also gefunden habe ich mittlerweile noch was auch funktioniert mit dem TC35.
http://code.google.com/p/gsm-shield-arduino/downloads/detail?name=BETA_GSM_GPRS_GPS_IDE100_v302.zip.zip&can=4&q=

Aber alles halt merkwürdig. Habe den AT Sketch getestet. Manch...

Re: Frequenzimetro Digitale con micro ATMEL - FINITO -

Posted: 25 May 2013 01:52 AM PDT

Ca...volo

... ed io che pensavo che il mio progetto di frequenzimetro portatile da 500MHz fosse chissa cosa ... quasi quasi mi vergogno.

Complimenti, bella realizzazione davvero ... mi fa venire voglia di fregarti l'idea e trasformarla in una versio...

Re: Onewire temperature sensor, just getting "no more addresses"?

Posted: 25 May 2013 01:48 AM PDT

Well I fixed it, another thread suggested using a 2.2k ohm resistor instead and that worked.

Re: Bricked my ATTiny84?

Posted: 25 May 2013 01:48 AM PDT

You can't brick a chip by running a sketch.

You can destroy I/O pins by connecting them to other things without connecting the grounds together.

Re: atmega8a-au come programmare con arduino?

Posted: 25 May 2013 01:47 AM PDT

certo, ma gestendo i test in modo sequenziale ed oculato, riprogrammando solo i fuse ad esempio la signature deve tornare leggibile, anche se il programma e' incriccato o se i lockbit sono bloccati.
Dopo aver avuto accesso alla signature si passa al pr...

Re: Bewegungsschranke

Posted: 25 May 2013 01:19 AM PDT

Quote from: pylon on May 24, 2013, 08:14:53 am

Genau für solche Sachen eignet sich die Laser-Schranke sehr gut.

Darum möchte ich sie ja in mein Projekt mit einbinden. Aber wie bzw. mit welchen Teilen genau "bastel...

Suggestion: motor for medium-high load

Posted: 25 May 2013 01:18 AM PDT

Hi all guys,
I just need one suggestion about the choice of one electric motor for move a medium-high load - about 100kg.
My needings are not to have a motor with high number of rpm, infact as I have projected 100-120 rpm are the maximum rortation freq...

Re: 433mhz reciever et RC-SWITCH

Posted: 25 May 2013 01:17 AM PDT

Quote from: Artouste on May 24, 2013, 05:45:45 am

Quote from: Rovhell on May 24, 2013, 05:41:46 am

Je n'ai aps d'oscillo si c'est ce que tu demande. je n'ai qu'un simple "testeur" voltmètre et...

Re: loop nel loop

Posted: 25 May 2013 01:16 AM PDT

Per come lo hai scritto, ti lampeggia solo se premi il pulsante infatti le porzioni di codice che accendono il LED sono dentro l'IF che verifica la pressione.

Suddividilo in due parti.

- Verifica se il pulsante viene premuto, in tal caso incrementa il ...

Re: nRF24L01+ and roles

Posted: 25 May 2013 01:15 AM PDT

did you manage to get it working?
i would like to use this one https://www.sparkfun.com/products/152 to communicate data to a garmin watch.
I got everything concerning the ant protocol and messages i should send, but it seems i am unable to properly ...

Re: Problem with hardware serial on ATtiny 4313

Posted: 25 May 2013 12:45 AM PDT

Code:

int led = 13;

Put const in front of that.

Quote from: Zoran Djurisic on Today at 01:59:30 am

The LED blinks about 3 times slower than expected. But If I either disconnect the serial device, or leave...

Re: Move line in char array

Posted: 25 May 2013 12:45 AM PDT

That works perfectly! Thank you so much!

Mikael

Should I start with Arduino?

Posted: 25 May 2013 12:44 AM PDT

I am a 2nd year Mechanical Engineering student, and I'm interested in robotics.

I want to gain expertise in robotics, to be able to know robots and electronics inside out, and eventually design my own robots.

My concern with Arduino is that it's poss...