Hi all,
I am using an nRF24L01+ for wireless communication, I have it working but I seem to have quite a lag between my TX and RX, and it also seems to update every second or so. Is there a way to increase how often the messages are being sent? Looking for lower latency. I am assuming it is a change needed within my void loop. Appreciate any help.
TX side
// SimpleTx - the master or the transmitter
#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>
#define CE_PIN 7
#define CSN_PIN 8
const byte slaveAddress[5] = {'R','x','A','A','A'};
RF24 radio(CE_PIN, CSN_PIN); // Create a Radio
char dataToSend[10] = "Message 0";
char txNum = '0';
int joyStick[32];
unsigned long currentMillis;
unsigned long prevMillis;
unsigned long txIntervalMillis = 1000; // send once per second
void setup() {
Serial.begin(9600);
Serial.println("SimpleTx Starting");
radio.begin();
radio.setRetries(1,5); // delay, count
radio.openWritingPipe(slaveAddress);
radio.stopListening();
}
//====================
void loop() {
joyStick[0] = analogRead(A0);
currentMillis = millis();
if (currentMillis - prevMillis >= txIntervalMillis) {
send();
prevMillis = millis();
}
}
//====================
void send() {
bool rslt;
rslt = radio.write( &joyStick, sizeof(joyStick) );
// Always use sizeof() as it gives the size as the number of bytes.
// For example if dataToSend was an int sizeof() would correctly return 2
Serial.print("Data Sent ");
Serial.print(joyStick[0]);
if (rslt) {
Serial.println(" Acknowledge received");
updateMessage();
}
else {
Serial.println(" Tx failed");
}
}
//================
void updateMessage() {
// so you can see that new data is being sent
txNum += 1;
if (txNum > '9') {
txNum = '0';
}
dataToSend[8] = txNum;
}
Thanks,