Traing to llisten to slave, or prhebs make some radio scanner

[Maksss2018]

Hi,
tying to get new skills in IoT
here code for master:
`const nrf24=require("nrf24"); // Load de module

// Init the radio
var rf24= new nrf24.nRF24(37,24);
rf24.begin();
// Configure the radio
rf24.config({
PALevel: nrf24.RF24_PA_LOW,
DataRate: nrf24.RF24_1MBPS,
});

// Register Reading pipes
var pipe=rf24.addReadPipe("0x65646f4e31",true) // listen in pipe "0x65646f4e31" with AutoACK enabled.

// Register callback for reading
rf24.read( function(data,n) {
// when data arrive on any registered pipe this function is called
// data -> JS array of objects with the follwing props:
// [{pipe: pipe id, data: nodejs with the data },{ ... }, ...]
// n -> number elements of data array
console.log(" reciver Onn");
console.dir(data);

},function(isStopped,by_user,error_count) {
console.log(" reciver stopped");
console.log(" isStopped ", JSON.stringify(isStopped));
console.log(" by_user ", JSON.stringify(by_user));
console.log(" error_count ", JSON.stringify(error_count));

// This will be if the listening process is stopped.
});

//rf24.stopRead();

// If you want to abort pending async writes
//rf24.stopWrite();

// Finally to assure that object is destroyed
// and memory freed destroy must be called.
//rf24.destroy();

`
result:
getting error 101
reciver stopped
isStopped true
by_user false
error_count 101

code for slave:
`SPI1.setup({sck:A5, miso:A6, mosi:A7});
var nrf = require("NRF24L01P").connect( SPI1, B0, B1 );
function onInit() {
nrf.init([0,0,0,0,1], [0,0,0,0,2]);
}
onInit();
setInterval(function() {
digitalWrite(LED1,1);

//var value = analogRead(A0); // read a value in
nrf.sendString("!!!!!!.");

}, 2000);
`

[ludiazv]

Hi @Maksss2018,
From the trace you are showing it seems that there is a problem in reading thread. It stops as the error_count is >100. This is a safety features to avoid non working radios and the application can detect this condition.
It seems that you have a wiring/pin assingantion problem. Your initialization command is also uncommon: var rf24= new nrf24.nRF24(37,24); What board are you using? How the radio is wired?

Regards,

[Maksss2018]

well, ludiazv, I'm using orange pi pc - I was using this instruction to connect nrf24l01 + adapter for receiver

As you can see this is schema for orange pi no Pc so i run WiringOP readall to get correct gpio

[ludiazv]

For Orange Pi you need to have spidev activated in your case spi0 is /dev/spidev0.0. Check constructor documentation CS pin in this case should be 0. (CS=*10+ for /dev/spidev.) for the CE pin should be 25 if this is the pin. check the documentation of the orange pi to map the pin to the number in linux.

[Maksss2018]

Sounds nice - I'll investigate in this way. Thank you very much

[Maksss2018]

Well, I've changed boot environment with armbian-config to . And than I found that al this time there was no power 8)))) now I wondering how to check is other pinc is working because after I run ls -l /dev/*spi* ... command return nothing

`

[ludiazv]

Without spidev the library can't work. Check armbian documentation on how to enable spidev overlays for your board. Armbian forums are great to solve this kind of issues. Sorry I can't help with that.

[Maksss2018]

Thank you anywhere ... I've turn on spidev overlay with armbian-config but steel no result. I was hoping to so some-sing with gpio readall - no changes there .. well thank you again, i will try luck on armbian dist forums