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Allow for quick updates to screen #228

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Allow for quick updates to screen #228

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13 changes: 13 additions & 0 deletions Adafruit_SSD1306.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -451,6 +451,19 @@ void Adafruit_SSD1306::ssd1306_command(uint8_t c) {
TRANSACTION_END
}

// Send one data byte directly to the display, bypassing the library.
// This allows for quick localized updates to the screen.
/*
@brief Write a single byte directly onto the SSD1306
display, bypassing the library.
@return None (void).
*/
void Adafruit_SSD1306::ssd1306_sendData(uint8_t d) {
wire->beginTransmission(i2caddr); // begin I2C transmission
WIRE_WRITE(0x40); // data mode
WIRE_WRITE(d); // send data
wire->endTransmission(); // stop I2C transmission
}
// ALLOCATE & INIT DISPLAY -------------------------------------------------

/*!
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1 change: 1 addition & 0 deletions Adafruit_SSD1306.h
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Expand Up @@ -157,6 +157,7 @@ class Adafruit_SSD1306 : public Adafruit_GFX {
void startscrolldiagleft(uint8_t start, uint8_t stop);
void stopscroll(void);
void ssd1306_command(uint8_t c);
void ssd1306_sendData(uint8_t d);
bool getPixel(int16_t x, int16_t y);
uint8_t *getBuffer(void);

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