You are right. But I thought it would be a trivial thing that wouldn't require to post the full code.
So I send this message to the node radio: CMD:R1:1#
And this is the code I'm trying to use which gives me the error "cannot convert 'String' to 'uint8_t {aka unsigned char}' for argument '1' to 'void digitalWrite(uint8_t, uint8_t)'" when it reaches the last line: digitalWrite(deviceID, data.toInt()), which should convert the R1 to 14:
#include <Debounce.h>
#include <SPI.h>
#include <SPIFlash.h>
#include <RFM69.h>
#include <RFM69_OTA.h>
#include <RFM69_ATC.h>
#define GATEWAYID 1
#define ESP8266Gateway 10
#define THISNODEID 11 //unique for each node on same network
#define NETWORKID 100 //the same on all nodes that talk to each other
#define FREQUENCY RF69_433MHZ
#define ENCRYPTKEY "q2qwWreT97WeAV5Y" //exactly the same 16 characters/bytes on all nodes!
#define IS_RFM69HW //uncomment only for RFM69HW! Leave out if you have RFM69W!
#define ENABLE_ATC //comment out this line to disable AUTO TRANSMISSION CONTROL
#define ACK_TIME 100 // max # of ms to wait for an ack
#define RETRIES 5
#define LED 9
#define BTN_PIN 7
#define R1 14
#define R2 15
#define R3 16
#define R4 17
#define SERIAL_BAUD 115200
#define FLASH_SS 8 // Define FLASH SS on D23
#ifdef ENABLE_ATC
RFM69_ATC radio;
#else
RFM69 radio;
#endif
typedef struct {
int btnNum;
int btnSts;
} Payload;
Payload theData;
bool promiscuousMode = false; //set to 'true' to sniff all packets on the same network
char packet[15]; // Allocate some space for the packet array
boolean btnState = false;
unsigned long previousMillis = 0;
const long interval = 5000;
String inputString = "";
bool stringComplete = false; // whether the string is complete
String nodeID, deviceID, data;
SPIFlash flash(FLASH_SS, 0xEF30);
Debounce Button(BTN_PIN, 80); // BTN_PIN is the pin, 80 is the delay, in ms.
void setup()
{
Serial.begin(SERIAL_BAUD);//Initialize the Serial port at the specified baud rate
delay(10);//Wait for the Serial port to settle down
inputString.reserve(200); // reserve 200 bytes for the inputString
pinMode(LED, OUTPUT);
pinMode(BTN_PIN, INPUT_PULLUP);// Setup physical button pin (active low)
pinMode(R1, OUTPUT);
pinMode(R2, OUTPUT);
pinMode(R3, OUTPUT);
pinMode(R4, OUTPUT);
//Initialize the radio
radio.initialize(FREQUENCY, THISNODEID, NETWORKID);
radio.setHighPower();
radio.encrypt(ENCRYPTKEY);//Turn the radio Encryption ON
radio.promiscuous(promiscuousMode);//Turn the radio Promiscuous mode ON
#ifdef ENABLE_ATC
Serial.println("RFM69_ATC Enabled (Auto Transmission Control)");
#endif
if (flash.initialize())
Serial.println("SPI Flash Init OK!");
else
Serial.println("SPI Flash Init FAIL!");
char buff[23];//buff[] is an array that will hold the "Listening at XXX Mhz..." message
sprintf(buff, "\nListening at %d Mhz...", FREQUENCY == RF69_433MHZ ? 433 : FREQUENCY == RF69_868MHZ ? 868 : 915);//buff will be filled with th FREQUENCY variable content
Serial.println(buff);//Send the message to the serial monitor
radio.sendWithRetry(ESP8266Gateway, "RS", 2, RETRIES, ACK_TIME);
Serial.println("Notifying gateway of node restart...");
}
void loop()
{
if (radio.receiveDone())//If some packet was received by the radio, wait for all its contents to come trough
{
CheckForWirelessHEX(radio, flash, false);
if (radio.TARGETID == THISNODEID)//Check if the packet destination is this radio (NODE 2)
{
for (byte i = 0; i < radio.DATALEN; i++)
{
packet[i] = (char)radio.DATA[i];
if (packet[i] == '#') // Check if incoming byte is the end marker "#"
{
inputString += "#"; // Add the # to the end of the string
inputString.trim(); // remove all white spaces, carrieges returns and new lines
stringComplete = true; // If the end marker is reached, flag stringComplete as true
Serial.print("Message received from Gateway - ");
}
else
{
inputString += packet[i]; // if not the end marker, add it to the inputString
}
}
}
Serial.println(inputString);
if (radio.ACKRequested())
{
radio.sendACK();
Serial.println(" - ACK sent.");
}
if (stringComplete)
{
if (inputString.startsWith("CMD:")) // we received a CMD
{
byte firstMarker = inputString.indexOf(':');
byte secondMarker = inputString.indexOf(":", firstMarker+1);
byte endMarker = inputString.indexOf("#");
deviceID = inputString.substring(firstMarker+1, secondMarker);
data = inputString.substring(secondMarker+1, endMarker);
}
processData(deviceID, data);
inputString = ""; // clear the inputString:
stringComplete = false; // set stringComplete flag to false
}
}
if (!Button.read() && !btnState)
{
btnState = 1;
theData.btnNum = BTN_PIN;
theData.btnSts = btnState;
Serial.println("Sending Node Button 1 ON Status to Gateway ");
radio.sendWithRetry(ESP8266Gateway, (const void*)(&theData), sizeof(theData), RETRIES, ACK_TIME);
}
else if (Button.read() && btnState)
{
btnState = 0;
theData.btnNum = BTN_PIN;
theData.btnSts = btnState;
Serial.println("Sending Node Button 1 OFF Status to Gateway ");
radio.sendWithRetry(ESP8266Gateway, (const void*)(&theData), sizeof(theData), RETRIES, ACK_TIME);
}
unsigned long currentMillis = millis();
if (currentMillis - previousMillis >= interval)
{
previousMillis = currentMillis;
theData.btnNum = BTN_PIN;
theData.btnSts = btnState;
radio.sendWithRetry(ESP8266Gateway, (const void*)(&theData), sizeof(theData), RETRIES, ACK_TIME);
Serial.println("Sendind a Sync to Gateway");
}
}
void processData(String deviceID, String data)
{
digitalWrite(deviceID, data.toInt());
}
. I'll try it latter on.