96 lines
2.5 KiB
Arduino
96 lines
2.5 KiB
Arduino
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/*
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RadioLib nRF24 Transmit Example
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This example transmits packets using nRF24 2.4 GHz radio module.
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Each packet contains up to 32 bytes of data, in the form of:
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- Arduino String
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- null-terminated char array (C-string)
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- arbitrary binary data (byte array)
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Packet delivery is automatically acknowledged by the receiver.
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For default module settings, see the wiki page
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https://github.com/jgromes/RadioLib/wiki/Default-configuration#nrf24
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For full API reference, see the GitHub Pages
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https://jgromes.github.io/RadioLib/
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*/
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// include the library
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#include <RadioLib.h>
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// nRF24 has the following connections:
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// CS pin: 10
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// IRQ pin: 2
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// CE pin: 3
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nRF24 radio = new Module(10, 2, 3);
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// or using RadioShield
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// https://github.com/jgromes/RadioShield
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//nRF24 radio = RadioShield.ModuleA;
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void setup() {
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Serial.begin(9600);
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// initialize nRF24 with default settings
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Serial.print(F("[nRF24] Initializing ... "));
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int state = radio.begin();
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if(state == RADIOLIB_ERR_NONE) {
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Serial.println(F("success!"));
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} else {
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Serial.print(F("failed, code "));
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Serial.println(state);
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while(true);
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}
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// set transmit address
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// NOTE: address width in bytes MUST be equal to the
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// width set in begin() or setAddressWidth()
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// methods (5 by default)
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byte addr[] = {0x01, 0x23, 0x45, 0x67, 0x89};
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Serial.print(F("[nRF24] Setting transmit pipe ... "));
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state = radio.setTransmitPipe(addr);
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if(state == RADIOLIB_ERR_NONE) {
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Serial.println(F("success!"));
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} else {
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Serial.print(F("failed, code "));
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Serial.println(state);
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while(true);
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}
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}
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void loop() {
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Serial.print(F("[nRF24] Transmitting packet ... "));
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// you can transmit C-string or Arduino string up to
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// 32 characters long
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int state = radio.transmit("Hello World!");
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if (state == RADIOLIB_ERR_NONE) {
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// the packet was successfully transmitted
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Serial.println(F("success!"));
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} else if (state == RADIOLIB_ERR_PACKET_TOO_LONG) {
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// the supplied packet was longer than 32 bytes
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Serial.println(F("too long!"));
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} else if (state == RADIOLIB_ERR_ACK_NOT_RECEIVED) {
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// acknowledge from destination module
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// was not received within 15 retries
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Serial.println(F("ACK not received!"));
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} else if (state == RADIOLIB_ERR_TX_TIMEOUT) {
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// timed out while transmitting
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Serial.println(F("timeout!"));
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} else {
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// some other error occurred
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Serial.print(F("failed, code "));
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Serial.println(state);
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}
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// wait for a second before transmitting again
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delay(1000);
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}
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