i2c-custom-char-print-at
rsbabin/custom-characters/i2c-custom-char-print-at
No description
i2c-custom-char-print-at
@/i2c-custom-char-print-at
DEVxod-dev/text-lcd/text-lcd-i2c-device
ROWnumber
The row index on the display. Starts from 0.
POSnumber
Position in the row. Starts from 0.
numnumber
Custom character byte number (0-7)
DOpulse
Update the allocated area content
DONEpulse
Fires when the allocated area is updated
DEV'xod-dev/text-lcd/text-lcd-i2c-device
C++ implementation
struct State {
};
{{ GENERATED_CODE }}
void printAt(LiquidCrystal_I2C* lcd, uint8_t rowIndex, uint8_t posIndex, Number charnum) {
lcd->setCursor(posIndex, rowIndex);
lcd->write(byte(charnum));
}
void evaluate(Context ctx) {
auto t = getValue<input_DEV>(ctx);
if (isInputDirty<input_DO>(ctx)) {
uint8_t row = (uint8_t) getValue<input_ROW>(ctx);
uint8_t pos = (uint8_t) getValue<input_POS>(ctx);
Number charNum = getValue<input_num>(ctx);
if (row < 0 || row >= t.rows || pos < 0 || pos >= t.cols) {
raiseError<output_DONE>(ctx);
return;
}
printAt(t.lcd, row, pos, charNum);
emitValue<output_DONE>(ctx, 1);
}
emitValue<output_DEVU0027>(ctx, t);
}