http://www.next.gr/templates/cleancss/img/feed-esyndicat.pnghttp://www.next.gr/http://www.next.gr/microcontrollers/Arduino-projects/http://www.next.gr/microcontrollers/Arduino-projects/Guitar-Effects-Pedal-with-arduino-l8350.htmlMake your own Guitar Effects Pedal with an Arduino board. Bit crushing, rate reducing, weird noises. 10-bit effects/guitar pedal with an Arduino for lo-fi DSP Mon, 18 Mar 2013 00:03:00 MSThttp://www.next.gr/microcontrollers/Arduino-projects/7-segment-LED-display-driver-l7038.htmlIf you're not familiar with the Arduino, it is "an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software". It has a small microcontroller, a USB port to connect to your computer for programming, a power socket for providing power when the USB cable isn't connected, and various digital and analog input and output pins, for connecting up to leds, switches and various sensors. Wed, 13 Feb 2013 00:02:00 MSThttp://www.next.gr/microcontrollers/Arduino-projects/Arduino-based-AVR-High-Voltage-Programmer-l7040.htmlFortunately, my trusty Arduino came to the rescue I created an Arduino-based AVR programmer that uses the high voltage programming mode and can fix pesky fuses like RSTDISBL. The Arduino has just enough IO to implement the entire HV protocol plus a go” button. So far I have only implemented setting LFUSE and HFUSE in software, but there is no reason why the code couldn’t be extended to support chip erase and programming the entire flash as well. Sun, 13 Jan 2013 00:01:00 MSThttp://www.next.gr/microcontrollers/Arduino-projects/Control-the-speed-of-a-DC-motor-with-a-potentiometer-with-an-Arduino-board-l8353.htmlA quick circuit showing how to control the speed of a DC motor with a potentiometer with your Arduino board. Also shows how to use a TIP120 transistor to allow the Arduino control a larger power supply. Wed, 21 Nov 2012 00:11:00 MSThttp://www.next.gr/microcontrollers/Arduino-projects/MIDI-Output-with-Arduino-l7039.htmlThis page covers only the details of MIDI communication on the Arduino module. For a more general introduction to MIDI on a microprocessor, see the MIDI notes on Tom's physical computing site. MIDI, the Musical Instrument Digital Interface, is a useful protocol for controlling synthesizers, sequencers, and other musical devices. MIDI devices are generally grouped in to two broad classes: controllers (i.e. devices that generate MIDI signals based on human actions) and synthesizers (including samplers, sequencers, and so forth). The latter take MIDI data in and make sound, light, or some other effect. Sun, 18 Nov 2012 00:11:00 MSThttp://www.next.gr/microcontrollers/Arduino-projects/Arduino-Motion-Sensor-l8349.htmlGive your Adruino board a motion sense around it! Use any Arduino board: Uno, Mega, Duemilanove etc. Thu, 01 Nov 2012 00:11:00 MSThttp://www.next.gr/microcontrollers/Arduino-projects/Arduino-on-a-prototype-board-l7037.htmlThe USB to RS232 converter is called USB-2-bot and comes from another project. Any other converter would work as well, e.g. this USB-TTL-232-cable from adafruit. It has an ISP connector to program the bootloader and a serial connection used for uploading Arduino sketches. Also in place is a capacitor for the auto-reset function. It is connected to RTS line on pin 1 of the serial connection. The board should be feature compatible with Arduino. Sat, 27 Oct 2012 00:10:00 MSThttp://www.next.gr/microcontrollers/Arduino-projects/Arduino-Punk-Console-l8352.htmlA programmable 8 step tone sequencer using an Arduino microcontroller. Features a 2 line x 16 character backlit LCD display Thu, 09 Aug 2012 00:08:00 MSThttp://www.next.gr/microcontrollers/Arduino-projects/Arduino-Day-Night-Controller-l6879.htmlThe Circuit is composed of two sections, the light sensing and the power switching. The light sensing part consists of a photo-resistor R4, connected like a voltage divider to R2. Since the resistance of the photo-resistor changes depending on the amount of light that is shining on it, the voltage divider's voltage ratio changes depending on the amount of light present. The voltage going through this part of the circuit is 5 volts dc, supplied from the Arduino board to J4 of the circuit. So the voltage divider is dividing the voltage between the maximum 5 volts, to the minimum 0 volts. The Arduino senses this voltage on its "Analog Pin 0" that connects to J3 on the circuit. This is called "analogRead," it divides the 0 to 5 volts by 1024 (10 bits, or 2^10) so it can sense a change in voltage as small as .0048 of a volt. Tue, 31 Jul 2012 00:07:00 MSThttp://www.next.gr/microcontrollers/Arduino-projects/Arduino-Guitar-Delay-Pedal-l8354.htmlAn attempt at an Arduino guitar pedal. The guitar signal feeds through a PT2399 delay circuit, modified to include a JFET preamp phase. The delay circuit has Echo and Delay knobs. From there, it feeds into an optoisolated-Arduino-5V preamp, and out to the Arduino. The output from the Arduino is filtered and sent to the amp. Mon, 21 May 2012 00:05:00 MSThttp://www.next.gr/microcontrollers/Arduino-projects/Guitar-Loop-with-Arduino-l8351.htmlBuild a Guitar Looper with an Arduino board. Here is how to produce pedalboard for electric guitar. The idea is to connect pedals to the Arduino, and to use them to control a software of sound processing in Pure Data. Here I show you the example of a looper, but one can be also made a rack of effects without problem. Thu, 19 Apr 2012 00:04:00 MST