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Ligne 7 :
Ligne 7 : + + Ligne 31 :
Ligne 33 : − − {{asm-row|img=ADF-LED-BACKPACK-MATRICE-30mm-05.jpg}} − {{asm-text}} Solder in all 16 pins − − Then clip the matrix leads short
ADF-LED-BACKPACK-8x8-Matrice-30 (voir la source)
Version du 8 février 2013 à 12:16
, 8 février 2013 à 12:16aucun résumé de modification
This version of the LED backpack is designed for the 1.2" 8x8 matrices. They measure only 1.2"x1.2" so its a shame to use a massive array of chips to control it. This backpack solves the annoyance of using 16 pins or a bunch of chips by having an I2C constant-current matrix controller sit neatly on the back of the PCB. The controller chip takes care of everything, drawing all 64 LEDs in the background. All you have to do is write data to it using the 2-pin I2C interface. There are two address select pins so you can select one of 8 addresses to control up to 8 of these on a single 2-pin I2C bus (as well as whatever other I2C chips or sensors you like). The driver chip can 'dim' the entire display from 1/16 brightness up to full brightness in 1/16th steps. It cannot dim individual LEDs, only the entire display at once.
This version of the LED backpack is designed for the 1.2" 8x8 matrices. They measure only 1.2"x1.2" so its a shame to use a massive array of chips to control it. This backpack solves the annoyance of using 16 pins or a bunch of chips by having an I2C constant-current matrix controller sit neatly on the back of the PCB. The controller chip takes care of everything, drawing all 64 LEDs in the background. All you have to do is write data to it using the 2-pin I2C interface. There are two address select pins so you can select one of 8 addresses to control up to 8 of these on a single 2-pin I2C bus (as well as whatever other I2C chips or sensors you like). The driver chip can 'dim' the entire display from 1/16 brightness up to full brightness in 1/16th steps. It cannot dim individual LEDs, only the entire display at once.
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[[Fichier:ADF-LED-BACKPACK-MATRICE-30mm-INTRO.jpg|400px]]
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{{asm-text}} '''WATCH OUT! THE MATRIX MUST BE INSTALLED THE RIGHT WAY!'''<br /><br />
{{asm-text}} '''WATCH OUT! THE MATRIX MUST BE INSTALLED THE RIGHT WAY!'''<br /><br />
Slide the matrix into the backpack and flip it over. Triple check that the text is on the same side as the From Adafruit text
Slide the matrix into the backpack and flip it over. Triple check that the text is on the same side as the From Adafruit text
{{asm-row|img=ADF-LED-BACKPACK-MATRICE-30mm-06.jpg}}
{{asm-row|img=ADF-LED-BACKPACK-MATRICE-30mm-06.jpg}}