Hi,
I write a code and I use NRF24l01 then I need to send info from transmitter to receiver to turn the LED's ON,I'm okay with but there is a problem,transmitter don't send 0 and you its between 0-255 it send the array from 1 - 255
I wanna send 0-255
how can I fix it
its my command for send
==============
uint8_t Array[4];
nrf24.send((uint8_t *)&Array, sizeof(Array));
==============
Post your complete program
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UKHeliBob:
A picture of you code is uselessPlease read this before posting a programming question and follow its advice on how to post or attach code here
if (ledPin == 11)
{
if (val != old_val3)
{
Array[2]=map(val, 0, 100, 0, 255);
nrf24.send((uint8_t*)&Array, sizeof(Array));
nrf24.waitPacketSent();
Serial.print("send data TIMER ch3 : ");
Serial.println(Array[2]);
old_val3= val;
final_val3=val;
}
}
UKHeliBob:
Try a simple example like this first
I did,
and I have no problem with that
but because of some reasons I had to use radiohead library until then I have this problem that I cant send 0 with the bellow code for send
nrf24.send((uint8_t*)&Array, sizeof(Array));
Your code
nrf24.send((uint8_t*)&Array, sizeof(Array));
Robin's code that you say works
rslt = radio.write( &dataToSend, sizeof(dataToSend) );
Why the difference ?
What happens if you send a byte with a value of zero rather than an array ?
sbabakp:
I did,
and I have no problem with that
but because of some reasons I had to use radiohead library
Why not use the TMRh20 RF24 library if you have proved to yourself that it works?
I have no experience with the Radiohead library.
...R