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An Arduino universal remote: record and playback IR signals. I've implemented a simple IR universal remote that will record an IR code and retransmit it on demand as an example for my IR library. Handling IR codes is a bit more complex than it might seem, as many protocols require more than simply recording and playing back the signal. To use the universal remote, simply point your remote control at the IR module and press a button on the remote control. Then press the Arduino button whenever you want to retransmit the code. My example only supports a single code at a time, but can be easily extended to support multiple codes.

The hardware The above picture shows the 9V battery pack, the Arduino board, and the proto board with (top-to-bottom) the IR LED, IR receiver, and pushbutton. The circuitry is simple: an IR sensor module is connected to pin 11 to record the code, an IR LED is connected to pin 3 to transmit the code, and a control button is connected to pin 12. The software Handling different protocols. Arduino – Basic Persistance of Vision. I think this’ll be the start of a few more projects for me. I’ve seen some cool LED PoV stuff (Persistance of Vision) with mounting displays on bikes, so hopefully I’ll get round to doing something like that. Anyway as a start I’ve got 5 LED’s connected to 5 pins on the Arduino, nothing complex there. The real struggle is to work out the timings, or rather the pauses between the patterns. Starting with how to make a character or drawing. Arduino POV LED parts Arduino Deumilanove w/ ATMEGA328 Breadboard / Prototyping board Jumper/ Connector wires 5 x LED (All the same colour!)

5 x 220 Ohm resistor (Red, Red, Brown, Gold) Using my knowledge of graphics etc.. the logical way to do this is to use a grid of pixels and I’ll have the column of LED’s change quickly to represent each column of the grid or frame. So we have a grid as below: pin 3: 10001 pin 4: 01010 pin 5: 00100 pin 6: 01010 pin 7: 10001 This shows a cross drawing, but you can make letters or drawings etc.. once you figure this out.

Arduino POV « Insignificant Bits. DIY Planet : Made in Fr - page 4. Un petit billet pour vous donner des nouvelles de Bleuette... Alimentation Pour fonctionner correctement, Bleuette à besoin d'une tension de 5V@1A pour alimenter son cerveau (un RaspberryPi) et d'une autre tension de 6V@3A pour alimenter les servos et la guirlande de led. Le développement d'une seconde carte fille permettant de générer les alimentations est prévue mais pour le moment, j'ai fait au plus simple, ainsi, pour le 6V, j'ai branché en parallèle 2 modules régulateurs de tension à découpage facilement trouvable sur le net, notamment, sur DealExtreme, ce sont des modules très pratiques que j'utilise assez souvent, ils sont capables de débiter 3A en pointe, mis en parallèle, nous avons donc théoriquement 6A, c'est amplement suffisant pour Bleuette qui comme dit plus haut doit avoir besoin de 3A maximum.

Note: Concernant la mise en parallèle des régulateurs à découpage, prenez garde à parfaitement bien régler la même tension sur les 2 modules à l'aide d'un multimètre fiable. Divers : DS1307 RTC tutorial. Review – Texas Instruments TLC5940 16-channel LED driver IC. Use the Texas Instruments TLC5940 16-Channel LED Driver IC with Arduino in Chapter 57 of our Arduino Tutorials. The first chapter is here, the complete series is detailed here. Introduction Today we are going to examine the Texas Instruments TLC5940 16-channel LED driver IC. Our reason for doing this is to demonstrate another, easier way of driving many LEDs – and also servos. First up, here is a few examples of the TLC5940 The TLC5940 is available in the DIP version above, and also surface-mount. During this tutorial we’ll explain how to control one or more TLC5940 ICs with LEDs and also look at controlling servos.

Build a TLC5940 demonstration circuit The following circuit is the minimum required to control sixteen LEDs from your Arduino or compatible. An Arduino Uno or compatible board16 normal, everyday LEDs that can have a forward current of up to 20 mAa 2 kΩ resistor (give or take 10%)a 0.1uF ceramic and a 4.7uF electrolytic capacitor R = 39.06 / Imax R = 39.06 / 0.02 = 1803 Ohms. COMMENT FONCTIONNE UN REGISTRE À DÉCALAGE ? Google Traduction.