Lähettimen lähdekoodi V2 - Revision history

Exf: /* Versiohistoria */

2025-10-04T21:05:03Z

Versiohistoria

Exf at 14:53, 3 October 2025

2025-10-03T14:53:24Z

@@ Line 2: / Line 2: @@
 ==== 2.0 ====
 Lisätty CRC-16 tarkistussummafunktio. Lähettää singalin 4-10 sekunnin välein, jolla tarkoitus pienentää paristojen kulutusta. Voisi implementoida suoraan virransäästöominaisuudet.<syntaxhighlight lang="c#">
 #include <CRC16.h>  // include CRC16 library
 #include <RH_ASK.h>  // include RadioHead library
@@ Line 28: / Line 33: @@
    checksumValue = crc.calc();    // calculate CRC-16 checksum value for the DIP switch values
-   Serial.print("DIP switches: ");
+   rf_driver.init();             // initialize the radio driver
+}
@@ Line 54: / Line 40: @@
    rf_driver.send((uint8_t*)&checksumValue, sizeof(checksumValue)); // send the checksum value first
    rf_driver.waitPacketSent();                                     // wait for the packet to be sent
    rf_driver.send(data, sizeof(data)); // then send the DIP switch values
    rf_driver.waitPacketSent();         // wait for the packet to be sent
    delay(random(4000, 10000));          // add random delay of between 4-10 seconds before transmitting again
+}
 </syntaxhighlight>

Exf: Created page with "=== Versiohistoria === ==== 2.0 ==== Lisätty CRC-16 tarkistussummafunktio. Lähettää singalin 4-10 sekunnin välein, jolla tarkoitus pienentää paristojen kulutusta. Voisi implementoida suoraan virransäästöominaisuudet. #include // include CRC16 library #include // include RadioHead library RH_ASK rf_driver(1000, 11, 12, 10); // speed = 1000 bits/sec, tx pin = 12 byte data[4]; // create byte..."

2025-10-03T14:42:26Z

Created page with "=== Versiohistoria === ==== 2.0 ==== Lisätty CRC-16 tarkistussummafunktio. Lähettää singalin 4-10 sekunnin välein, jolla tarkoitus pienentää paristojen kulutusta. Voisi implementoida suoraan virransäästöominaisuudet.<syntaxhighlight lang="c#"> #include <CRC16.h> // include CRC16 library #include <RH_ASK.h> // include RadioHead library RH_ASK rf_driver(1000, 11, 12, 10); // speed = 1000 bits/sec, tx pin = 12 byte data[4]; // create byte..."

New page

=== Versiohistoria ===

==== 2.0 ====
Lisätty CRC-16 tarkistussummafunktio. Lähettää singalin 4-10 sekunnin välein, jolla tarkoitus pienentää paristojen kulutusta. Voisi implementoida suoraan virransäästöominaisuudet.<syntaxhighlight lang="c#">
#include <CRC16.h> // include CRC16 library
#include <RH_ASK.h> // include RadioHead library

RH_ASK rf_driver(1000, 11, 12, 10); // speed = 1000 bits/sec, tx pin = 12

byte data[4]; // create byte array to store DIP switch values
uint16_t checksumValue; // variable to store the checksum value

void setup() {
Serial.begin(9600);
randomSeed(analogRead(A0)); // seed the random number generator with noise from an unconnected analog pin
pinMode(2, INPUT_PULLUP); // set DIP switch pins as input pull-up
pinMode(3, INPUT_PULLUP);
pinMode(4, INPUT_PULLUP);
pinMode(5, INPUT_PULLUP);

data[0] = digitalRead(2); // read DIP switches and store in the array
data[1] = digitalRead(3);
data[2] = digitalRead(4);
data[3] = digitalRead(5);

CRC16 crc; // create an instance of CRC16 class with default parameters (you can customize them if needed)
crc.add(data, sizeof(data)); // add the DIP switch values to the CRC calculation
checksumValue = crc.calc(); // calculate CRC-16 checksum value for the DIP switch values

Serial.print("DIP switches: ");
Serial.print(data[0]);
Serial.print(", ");
Serial.print(data[1]);
Serial.print(", ");
Serial.print(data[2]);
Serial.print(", ");
Serial.println(data[3]);

Serial.print("CRC-16 checksum value: 0x");
Serial.println(checksumValue, HEX);

//rf_driver.init(); // initialize the radio driver
if (!rf_driver.init()) { // initialize the radio driver and check for errors
Serial.println("RF driver initialization failed.");
while (1); // stop execution in case of failure
} else {
Serial.println("RF driver initialized successfully.");
}
}

void loop() {

rf_driver.send((uint8_t*)&checksumValue, sizeof(checksumValue)); // send the checksum value first
rf_driver.waitPacketSent(); // wait for the packet to be sent

Serial.println(checksumValue, HEX);

rf_driver.send(data, sizeof(data)); // then send the DIP switch values
rf_driver.waitPacketSent(); // wait for the packet to be sent

Serial.print("DIP switches: ");
Serial.print(data[0]);
Serial.print(", ");
Serial.print(data[1]);
Serial.print(", ");
Serial.print(data[2]);
Serial.print(", ");
Serial.println(data[3]);

delay(random(4000, 10000)); // add random delay of between 4-10 seconds before transmitting again

Serial.println("ping");
}

</syntaxhighlight>