TWELITE STAGE SDK / act

MWX Library and act

The MWX library aims to simplify the code representation for TWELITE wireless modules. Programs created with MWX are called act. There are two types of act: loop-based description and event-driven description (called behavior).

Loop-based description (setup(), loop())

Suitable for describing small-scale functions.

#include <TWELITE>
const uint8_t PIN_LED = 5;

void setup() {
  pinMode(PIN_LED, OUTPUT);
}

void loop() {
  if (TickTimer.available()) {
    uint32 t_now = millis();

    // blink LED every 1024ms
    digitalWrite(PIN_LED, (t_now >> 10) & 1 ? HIGH : LOW);
  }
}

Event-driven application description

You can define a state machine within a class to handle various events and interrupt handlers, enabling clear code for complex application behaviors. This method is called behavior.

// myApp.hpp
...
class myApp : MWX_APPDEFS_CRTP(myApp) {
...
  void loop() {
    // main loop
  }

  void receive(mwx::packet_rx& rx) {
    // on receive
  }
};

// myApp.cpp
...
MWX_DIO_EVENT(12, uint32_t arg) {
		// on event from DIO12
}

Simplifying peripheral procedures

Classes are defined to handle commonly used UART, I2C, SPI, ADC, DIO, timers, and pulse counters.

void loop() {
  while(Serial.available() {
    auto x = Serial.read(); ... } // serial message
  if (Analogue.available() {
    auto x = Analogue.read(...); } // adc values
  if (Buttons.available() {
    Buttons.read(...); } // DIO changes
  if (the_twelite.receiver.available()) {
    auto&& rx = the_twelite.receiver.read(); } // on rx packet
}

Defining a simple relay network

This relay network is implemented equivalently to the TWELITE standard application. It manages device addresses with 8-bit logical IDs and does not perform network construction communication, allowing wireless packets to be sent to the network immediately after power-on.

#include <TWELITE>
#include <NWK_SIMPLE>

void setup() {
  ...
  auto&& nwksmpl = the_twelite.network.use<NWK_SIMPLE>();
	nwksmpl << NWK_SIMPLE::logical_id(0xFE)
	           // set Logical ID. (0xFE means a child device with no ID)
	        << NWK_SIMPLE::repeat_max(3);
	           // can repeat a packet up to three times.
}

void loop() {
  ...
  vTransmit();
  ...
}

void vTransmit() {
  if (auto&& pkt =
    the_twelite.network.use<NWK_SIMPLE>().prepare_tx_packet();
  pkt << tx_addr(0x00)  // to parent
	  	<< tx_retry(0x3); // set retry

	pack_bytes(pkt.get_payload() // prepare payload data
	    , uint8_t(0x01)
	    , uint16_t(analogRead(PIN_ANALOGUE::A1))
	    , uint16_t(analogRead_mv(PIN_ANALOGUE::VCC)));

	pkt.transmit(); // transmit!
}

Board definitions for PAL and MONOSTICK

Easily handle sensors and other components on the board.

#include <TWELITE>
#include <PAL_AMB> // include the board support of PAL_AMB

void setup() {
	auto&& brd = the_twelite.board.use<PAL_AMB>(); // use PAL AMB
	uint8_t u8dip = brd.get_DIP_SW();   // check DIP switch status
	brd.set_led(LED_TIMER::BLINK, 100); // LED switches on/off every 100ms
	...

	// start capture of sensors
	brd.sns_SHTC3.begin();
}

void loop() {
	if (TickTime.available()) { // check every ms
		auto&& brd = the_twelite.board.use<PAL_AMB>();

		if (brd.sns_LTR308ALS.available()) {
		  Serial << brd.sns_SHTC3.get_temp();
		} else {
		  // notify sensor that 1ms passed.
			brd.sns_SHTC3.process_ev(E_EVENT_TICK_TIMER);
		}
	}
}