init
gabbapeople/4d-ulcd/init
Initializes a 4D uLCD device with custom settings
init
@/init
Initializes a 4D uLCD device with custom settings
UARTxod/uart/uart
An UART interface to which 4D ULCD display is wired
RSTport
Board port number the RST pin of the display is connected to. By default and for the 4D-Arduino-Adaptor-Shield-II RST pin is D4.
UPDpulse
Updates all objects states
INITpulse
Triggets a new connection to a display
DONEpulse
Fires on a successful connection
DEV@/4d-ulcd
a 4D ULCD device
C++ implementation
#pragma XOD require "https://github.com/4dsystems/ViSi-Genie-Arduino-Library"
// clang-format off
{{#global}}
#include <genieArduino.h>
{{/global}}
// clang-format on
struct State {
uint8_t mem[sizeof(Genie)];
Genie* genie;
uint8_t cmd;
uint8_t object;
uint8_t index;
uint16_t eventData;
};
{{ GENERATED_CODE }}
void evaluate(Context ctx) {
State* state = getState(ctx);
auto uart = getValue<input_UART>(ctx);
if (isInputDirty<input_INIT>(ctx)){
state->genie = new (state->mem) Genie;
state->genie->Begin(*(uart->toStream()));
const uint8_t port = getValue<input_RST>(ctx);
::pinMode(port, OUTPUT);
::digitalWrite(port, 1);
delay(100);
::digitalWrite(port, 0);
delay(3500);
emitValue<output_DONE>(ctx, 1);
}
if (isInputDirty<input_UPD>(ctx)){
state->genie->DoEvents();
genieFrame Event;
state->genie->DequeueEvent(&Event);
state->cmd = Event.reportObject.cmd;
state->object = Event.reportObject.object;
state->index = Event.reportObject.index;
state->eventData = state->genie->GetEventData(&Event);
}
ValueType<output_DEV>::T obj;
obj = { state->genie, state->cmd, state->object, state->index, state->eventData};
emitValue<output_DEV>(ctx, obj);
}