Go Down

Topic: Christmas with Arduino...32 X 32 LED (Read 557 times) previous topic - next topic

Alain Bérubé


Christmas with Arduino...32 X 32 LED
display managed by Arduino Méga ; Pins 22 to 53 control the 32 rows via the required resistor (220 ohms) and a PNP transistor ( NEC B 546A) which allows the use of external courant ( 5 V. DC.).
Pin 9 controls columns via 4 shift registers (74HC595) in serie with 4 ULN 2803.
The music is from a miniature MP/ player coupled with a recycled amply from an old CD player.
Two relay and a time switch allow the unattended functioning of the unit.
Pictures are Icons (already 32 X 32) saved as black and white and processed by a house software (based on QB 64) that generates the array required by Arduino.

Ref: Arduino Méga: http://arduino.cc/en/Main/ArduinoBoardMega
Carylin Maw & Tom Igoe , Shifting out & 595 chip.: http://www.arduino.cc/en/Tutorial/ShiftOut

Circuit/Electronic involved: //foamcastel.com/berube/berube1/extdoc/photo_pps/Shéma2.jpg

Contact: mailto:aladin910@gmail.com?subject=Christmas with Arduino

Go Up
 


Please enter a valid email to subscribe

Confirm your email address

We need to confirm your email address.
To complete the subscription, please click the link in the email we just sent you.

Thank you for subscribing!

Arduino
via Egeo 16
Torino, 10131
Italy