8x8 RGB Matrix display controller

8x8 RGB matrix controller with a TLC5947 from texas

zanzeoo

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Description

RGB matrix driver ,by a TLC5947 from Texas instrument (SPI) , and a PCF8574 (I2C)
Matrix are chainable
NO MCU on the board , you can use your own favorite MCU , you just need SPI and I2C BUS
Hardware is done , i 'm working on the sofware ( most difficult part for me ...:):) )

Details

Warning : mistake in the Matrix lib on eagle , for the green colors LSB and MSB are inverted , you have to correct it in the software if you dont want to have the green color in mirror mode .....

Components

1 × TLC5947 Interface and IO ICs / Display Interface
1 × PCF8574 Microprocessors, Microcontrollers, DSPs / Microprocessors (MPUs)
1 × UDN2982 Interface and IO ICs / Peripheral Drivers and Actuators
1 × GENTA RGB 8x8 LED MATRIX

Build Instructions

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1

Step 1

PCF8574 do the ROWS , and TLC5947 the colums
TLC5947 is the most tricky part to understant , it 's a kind of super 288 bit shift register
TLC5947 need 36 BYTE for lighting a line of the matrix . So you need 288 BYTE for 1 entire Matrix
and 1152 BYTE for four MATRIX ....

View all instructions