Arduino by Davis: “TIMESQUARE Watch Class Results!” plus 19 more

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• TIMESQUARE Watch Class Results!
• Download and Print: Evil Mad Scientist Valentines
• Re: 433Mhz et wifi, interferance?
• Re: Guide to gyro and accelerometer with Arduino including Kalman filtering
• client.available returns 0 :O, but client.connected returns a true value
• Re: Connecting an Ethernet PHY to Arduino Due
• Re: Verständnisfrage zu einem Button/Schalter
• Re: problema imprecisione RTC PCF8563
• Comment controler deux moteurs pas à pas et un servo?
• Re: Non riesco a programmare ATmega644P
• Re: Non riesco a programmare ATmega644P
• Re: Multiple PWM Outputs with Unique Frequencies
• ethernet shield failure
• Re: solar tracker using RTC
• Re: The ants come marching in (and release magic smoke)
• Re: The ants come marching in (and release magic smoke)
• Re: firmata + processing problema esempi
• Re: Driving a speaker with an Arduino pin...
• Small 4700u capacitor
• Re: suntracker with actuator

TIMESQUARE Watch Class Results! Posted: 12 Feb 2013 02:00 AM PST Trammell Hudson writes in about the TIMESQUARE watch class he held at NYC Resistor: We had a great class yesterday. Four of the students had never soldered before, but the kits went together really easily and all eight worked on the first try.  We took a little longer on the assembly than I had expected — 2.5 hours instead of 1.5 — and as a result the software portion was a little bit shorter than I had planned.  Everyone successfully compiled and re-flashed their watches using the arduino IDE and the FTDI friend, so they should be in good shape for experimenting with them. TIMESQUARE DIY Watch Kit in five colors!

Download and Print: Evil Mad Scientist Valentines Posted: 12 Feb 2013 01:00 AM PST Evil Mad Scientist Valentines: Here's our collection of six little valentine cards, each of which adds a little authenticity and class to the not entirely uncommon "geek" valentine genre. Suppose that you want to communicate to your valentine just how hot you think they are. Sure, you could go with a picture of a thermometer— or a Sriracha bottle —but isn't the thermodynamic definition of temperature itself in a whole category of its own?

Re: 433Mhz et wifi, interferance? Posted: 12 Feb 2013 01:35 AM PST ca depend de la porté de ton emeteur recepteur. tu as un lien de ton recepteur?

Re: Guide to gyro and accelerometer with Arduino including Kalman filtering Posted: 12 Feb 2013 01:32 AM PST Hi Lauszus, All sorted out now. I had everything coded correctly but missed the initial offset from zero for the down axis accelerometer due to gravity. It works very well and rejects linear movements really well. Just need to feed the angle into my mo...

client.available returns 0 :O, but client.connected returns a true value Posted: 12 Feb 2013 01:31 AM PST Hello,

Re: Connecting an Ethernet PHY to Arduino Due Posted: 12 Feb 2013 01:30 AM PST I have the Taijuino board with it's extra header here.  What difference is there in using this "PHY module" over using one of the already available modules that don't rely on the built it interface?  Speed? Cost? ??

Re: Verständnisfrage zu einem Button/Schalter Posted: 12 Feb 2013 01:29 AM PST Mal ne ganz andere Frage hast du schon häufiger gebastelt oder gelötet? Normalerweise bestückt man eine Platine anders herum. gruß

Re: problema imprecisione RTC PCF8563 Posted: 12 Feb 2013 01:00 AM PST Domanda da ignorante, ed utilizare un trimmer capacitivo non è possibile? Barbezuan

Comment controler deux moteurs pas à pas et un servo? Posted: 12 Feb 2013 12:59 AM PST Bonjour, je souhaite utiliser un arduino pour déplacer une webcam de droite à gauche et de haut en bas. J'ai commencé le projet avec des servos mais d'après mes recherches il faut mieux utiliser deux moteurs pas à pas pour gérer les mouvements afin que...

Re: Non riesco a programmare ATmega644P Posted: 12 Feb 2013 12:58 AM PST @babbuino: fai un'ultima prova. Prova con il filtro RC e non usare jumper per fare il collegamento tra pin del convertitore e pin RX0 del micro ma utilizza la stessa resistenza come ponticello. Sembrerà una scemenza ma a me ha funzionato. In pratica ci...

Re: Non riesco a programmare ATmega644P Posted: 12 Feb 2013 12:56 AM PST @pitusso: mettendo 38400 però dovresti ricompilare il bootloader per lavorare a quella velocità. Il bootloader AtmegaBOOT lavora a 57600 mentre l'Optiboot 4.5 a 115200.

Re: Multiple PWM Outputs with Unique Frequencies Posted: 12 Feb 2013 12:55 AM PST Okay, I finally came up with a clean alternate approach for setting up PWM frequencies from within a sketch, for up to two unique frequencies.  The trick is to utilize the two PWM clocks (CLKA & CLKB) provided by the SAM3X8E chip. I wrote and enclosed...

ethernet shield failure Posted: 12 Feb 2013 12:38 AM PST Well i am not clear with what i mean at the subject. I use and ethernet shield with  w5100. I have arduino version 1.03 and i load the examples from the ethernet section. I get error that it has problem with DHCP. i do not find anything wrong. I plug a...

Re: solar tracker using RTC Posted: 12 Feb 2013 12:38 AM PST You can do a two axis tracker using at most four LDRs, a couple of op-amps and a couple of H-bridges. All the RTC needs to do is return the rig to "home" just before dawn.

Re: The ants come marching in (and release magic smoke) Posted: 12 Feb 2013 12:36 AM PST Maybe the ant bridged the pins and died causing a faulty input/output logic that caused the high power device to be powered to long, overheat and melt solder. It could also have been dead some time but damp air absorbed into it's body made it conduct. ...

Re: The ants come marching in (and release magic smoke) Posted: 12 Feb 2013 12:36 AM PST Well what i see is poorly made boards plus a bug or two and things start to fell. The bad soldering show up I've pulled power transistor off a board the solder not even holding them. buttons the same thing. Reflow the board and it works like new. It't ...

Re: firmata + processing problema esempi Posted: 12 Feb 2013 12:35 AM PST Gentilmente, puoi spiegare comunque cosa non andava e come hai risolto? Sarà utile per qualcuno che in futuro avrà lo stesso problema.

Re: Driving a speaker with an Arduino pin... Posted: 11 Feb 2013 11:56 PM PST One thing I don't get... Ideally a speaker should be driven backwards as well as forwards (ie. negative voltage across it) so the other wire on the speaker should really be at 2.5V. Is that possible with a couple of components? Would it make much diff...

Small 4700u capacitor Posted: 11 Feb 2013 11:56 PM PST Hello Im searching for either a short or thin 4700uf capacitor formy project, does anyone have any recomendations?

Re: suntracker with actuator Posted: 11 Feb 2013 11:55 PM PST Dear sir, congrats for the above success project . i  need few clarification 1)how did you locate sun elevation angle. For this sun position algorithm (SPA) not work with Arduino Board 2) did you used   Stoke of linear actuator to calculate sun elevati...

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