k74hc595(shiftout)
koadrobot/devices/k74hc595(shiftout)
No description
k74hc595(shiftout)
@/k74hc595(shiftout)
CLKport
CLOCK(Pin 11 on the chip)
DSport
DATA SERIAL (Pin 14 on the chip)
PINSbyte
State of Output Pins of the hc595 is high.
UPDpulse
Triggers new write
ERRpulse
Fires if write failed. E.g. `PORT` does not exist.
DONEpulse
Fires on writing complete
C++ implementation
struct State {
};
{{ GENERATED_CODE }}
void evaluate(Context ctx)
{
if (isInputDirty<input_UPD>(ctx))
{
const uint8_t ds = getValue<input_DS>(ctx);
const uint8_t clk = getValue<input_CLK>(ctx);
if (isValidDigitalPort(ds) && isValidDigitalPort(clk))
{
uint8_t bits = getValue<input_BITS>(ctx);
::pinMode(ds, OUTPUT);
::pinMode(clk, OUTPUT);
::digitalWrite(clk, 0);
for(uint8_t i=0; i<8; i++){
::digitalWrite(ds, 1 & (bits >> i));
}
::digitalWrite(clk, 1);
emitValue<output_DONE>(ctx, 1);
}
else
emitValue<output_ERR>(ctx, 1);
}
}