Library to drive a pair of Adafruit 16x8 led matrices (powered by Adafruit LED Backpack) rotated end to end and stuck together to make a larger matrix.
Dependencies: Adafruit_LEDBackpack
Dependents: Adafruit_LEDBackpack_32x8_App RubeGoldberg
Diff: Adafruit_32x8matrix.cpp
- Revision:
- 0:acc3c726ffe3
- Child:
- 1:ed6764fbda54
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Adafruit_32x8matrix.cpp Wed Jun 28 19:32:40 2017 +0000 @@ -0,0 +1,66 @@ +#include "mbed.h" + +#include "Adafruit_32x8matrix.h" + +Adafruit_32x8matrix::Adafruit_32x8matrix(I2C *i2c, uint8_t i2c_addr, uint8_t i2c_addr2, uint8_t rotation, uint8_t rotation2, uint8_t brightness) + + : _i2c(*i2c), _matrix(&_i2c), _matrix2(&_i2c), _i2c_addr(i2c_addr), _i2c_addr2(i2c_addr2), _rotation(rotation), _rotation2(rotation2), _brightness(brightness) + +{ + + _matrix2.begin(_i2c_addr2); + _matrix2.setBrightness(_brightness); + _matrix2.setRotation(_rotation2); + _matrix2.clear(); + _matrix2.writeDisplay(); + + _matrix.begin(_i2c_addr); + _matrix.setBrightness(_brightness); + _matrix.setRotation(_rotation); + _matrix.clear(); + _matrix.writeDisplay(); + + +} + +void Adafruit_32x8matrix::scrollText(char * buffer, uint8_t buf_len, uint8_t speed) +{ + + + // code inspired by LOLShield library + int xoff=31;// set offset to the right end of the screen - must be signed + for(int i=0; i< (31 + buf_len*6 +10); i++){ //scrolling loop + for(int j=0; j<buf_len; j++){ //loop over all of the chars in the text + if(xoff > 15){ + _matrix2.drawChar(xoff + j*6 - 16, 0, buffer[j], 1, 0, 1); + }else + { + _matrix.drawChar(xoff + j*6, 0, buffer[j], 1, 0, 1); + _matrix2.drawChar(xoff + j*6 - 16, 0, buffer[j], 1, 0, 1); + } + } + xoff--; // decrement x offset + + _matrix.writeDisplay(); + _matrix2.writeDisplay(); + Thread::wait(1000/speed); + _matrix.clear(); + _matrix2.clear(); + } +} + + +void Adafruit_32x8matrix::showText(char * buffer, uint8_t buf_len, uint8_t speed) +{ + for(int j=0; j<buf_len; j++){ //loop over all of the chars in the text + _matrix.drawChar(j*6, 0, buffer[j], 1, 0, 1); + _matrix2.drawChar(j*6 - 16, 0, buffer[j], 1, 0, 1); + } + _matrix.writeDisplay(); + _matrix2.writeDisplay(); + Thread::wait(1000/speed); + _matrix.clear(); + _matrix2.clear(); + +} + \ No newline at end of file