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// ATtiny412 / ARDUINO
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// _____
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// VDD 1|* |8 GND
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// (DAC) (AIN6) PA6 0 2| |7 4~ PA3 (AIN3)(SCK)(EXTCLK)
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// (AIN7) PA7 1 3| |6 5 PA0 (nRESET/UPDI)
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// (MOSI)(TXD*)(SDA) (AIN1) PA1 2 4|_____|5 3 PA2 (AIN2)(MISO)(RXD*)(SCL)
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// Programmieradapter linke Seite Laptop
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// Ausgang Trigger auf Pin 2&3 schält Pin 5&7
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// dazwischen schläft er, Stromverbrauch ~0,5µA
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// clock 8MHz, bei 1MHz ist RF-timing zu ungenau
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#include <avr/sleep.h> // Sleep Modes
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const int buttonPin = 2; // pin 4 / PCINT1
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const int reedPin = 1; // pin 3 / PCINT7
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const int rfPin = 3; // pin 5
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const int ledPin = 4; // pin 7
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const int Unused1 = 0; // pin 2
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const int Unused2 = 5; // pin 6 / UPDI
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volatile bool eventButton = false;
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volatile bool eventSensorOn = false;
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volatile bool eventSensorOff = false;
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const int txRepeat = 15; // Original 30
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const int txPulselength = 350; // protocol 1
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void rfSend(unsigned long code, byte length) {
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for (int nRepeat = 0; nRepeat < txRepeat; nRepeat++) {
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for (char i = length - 1; i >= 0; i--) {
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if (code & (1L << i))
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rfTransmit(3, 1); // protocol 1
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else
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rfTransmit(1, 3); // protocol 1
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}
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rfTransmit(1, 31); // protocol 1
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}
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digitalWrite(rfPin, LOW);
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}
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void delay_pulselengths(uint16_t us)
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{
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while (us > 0)
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{
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delayMicroseconds(txPulselength);
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us--;
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}
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}
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void rfTransmit(byte high, byte low) {
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digitalWrite(rfPin, HIGH);
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delay_pulselengths(high);
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digitalWrite(rfPin, LOW);
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delay_pulselengths(low);
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}
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void flashLed (int wait) {
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digitalWrite(ledPin, LOW); // LED ist low aktiv
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delay(wait);
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digitalWrite(ledPin, HIGH);
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delay(wait);
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}
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ISR(PORTA_PORT_vect) {
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if(!digitalRead(buttonPin)){
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eventButton = true; // Button triggert auf Masse
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}
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else if(digitalRead(reedPin)){
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eventSensorOn = true; // Vorrang Button, sonst Annahme, dass Interrupt vom Sensor kam
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}
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else if(!digitalRead(reedPin)){
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eventSensorOff = true; // Vorrang Button, sonst Annahme, dass Interrupt vom Sensor kam
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}
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PORTA.INTFLAGS = PORT_INT1_bm; // Clear PA6 interrupt flag
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PORTA.INTFLAGS = PORT_INT7_bm; // Clear PA7 interrupt flag
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}
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void setup () {
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pinMode(ledPin, OUTPUT); //
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digitalWrite (ledPin, HIGH); // LED liegt an Plus, beim Start ausschalten
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pinMode(rfPin, OUTPUT);
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PORTA.PIN1CTRL = PORT_PULLUPEN_bm; // Same as pinMode(Button, INPUT_PULLUP);
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PORTA.PIN7CTRL = PORT_ISC_INPUT_DISABLE_gc;
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pinMode(Unused1, INPUT_PULLUP); // Don't leave unused pins floating
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pinMode(Unused2, INPUT_PULLUP);
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set_sleep_mode(SLEEP_MODE_PWR_DOWN);
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sleep_enable();
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} // end of setup
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void loop () {
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if (eventButton == true) {
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flashLed(125);
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rfSend(3848390, 24); // toggle, 3848390₁₀ = 3AB8C6₁₆
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eventButton = false;
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}
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if (eventSensorOn == true) {
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flashLed(125);
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flashLed(125);
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rfSend(3848393, 24); // An, 3848393₁₀ = 3AB8C9₁₆
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eventSensorOn = false;
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}
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if (eventSensorOff == true) {
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flashLed(500);
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rfSend(3848396, 24); // Aus, 3848396₁₀ = 3AB8CC₁₆
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eventSensorOff = false;
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}
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delay(1000); // unklar, ob noch benötigt
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PORTA.PIN1CTRL = PORT_PULLUPEN_bm | PORT_ISC_LEVEL_gc; // Pullup + Trigger Button on low level
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PORTA.PIN7CTRL = PORT_ISC_BOTHEDGES_gc; // Trigger Sensor auf beide Flanken
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sleep_mode();
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// sleep_cpu();
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// Continue after interrupt
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PORTA.PIN1CTRL = PORT_PULLUPEN_bm; // Turn off pin sense interrupt
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PORTA.PIN7CTRL = PORT_ISC_INPUT_DISABLE_gc;
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} // end of loop
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sensor.png
(800 KB)
receiver.png
(1 MB)
