通过串口发送字母给nrf2401来控制另一个arduino上的led，编译上传成功但是测试没有...
转自大师bigapplesama 的 https://www.arduino.cn/thread-45414-1-1.html下面的程序上传通过了可是测试时发射端的灯能亮，接收端的灯不亮，哪位大师知道是什么原因吗？
arduino nano与无线模块的连接是8-CSN,7-CE,13-SCK,11-MOSI,12-MISO
#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>
RF24 radio(7, 8); // CNS, CE
const byte addresses[] = {"00001", "00002"};
String indate="";
String val="";
int led=3;
void setup() {
Serial.begin(9600);
pinMode(led,OUTPUT);
radio.begin();
radio.openWritingPipe(addresses); // 00002
radio.openReadingPipe(1, addresses); // 00001
radio.setPALevel(RF24_PA_MIN);
}
void loop() {
delay(5);
radio.stopListening();
while(Serial.available()>0)
{
indate+=char(Serial.read());
delay(2);
if(Serial.available()<=0)
{
Serial.println(indate);
}
}
if(indate.length()>0)
{
val=indate;
if(val=="b")
{
digitalWrite(led,HIGH);
const char text1[] = "b";
radio.write(&text1, sizeof(text1));
}
else if(val=="a")
{
digitalWrite(led,LOW);
const char text2[] = "a";
radio.write(&text2, sizeof(text2));
}
}
indate=""; //清空indate为下一次输入做准备
}
这边是接收端的代码,读取收到的文本，是b就打开led,是a则关闭led，之前有写了个把读取的文字发送到串口的然后发现串口里
arduino uno的连接是CE <–> Arduino pin 9
CSN <–> Arduino pin 10
SCK <–> Arduino pin 13
MOSI <–> Arduino pin 11
MISO <–> Arduino pin 12
#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>
#define led 5
RF24 radio(7, 8); // CNS, CE
const byte addresses[] = {"00001", "00002"};
void setup()
pinMode(5, OUTPUT);
radio.begin();
radio.openWritingPipe(addresses); // 00001
radio.openReadingPipe(1, addresses); // 00002
radio.setPALevel(RF24_PA_MIN);
}
void loop() {
radio.startListening();
if (radio.available()) {
char text = "";
radio.read(&text, sizeof(text));
if (text == "a") {
digitalWrite(led, HIGH);
}
if (text == "b") {
digitalWrite(led, LOW);
}
}} 名字看成了huyanbin
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