Read RX Channels with Arduino

This is so easy, their is no reason you shouldnt use a remote control RX/TX(or uber cheap) in your next project :)

Connect the RX module to power(in my case +5v and GND), and then plug in each of the signal lines for each channel into a separate digital pin. Then just two lines of code:

pinMode(CHpin, INPUT); //make digital pin connected to signal a input
unsigned long CHvalue = pulseIn(CHpin, HIGH); //pulse in on HIGH, depends on what type of signal you have

That's it; CHvalue holds the value of whatever channel of the RX.

Reading PPM sum a little bit different, but still similar to the above code:

#define channumber 4 //number of ppm sum channels
int value[channumber]; //holds PPM values
#define PPMsumPin 3

void setup()
{
  Serial.begin(115200); //Serial Begin
  pinMode(PPMsumPin, INPUT); //Pin 3 as input, this is where the ppm sum pin from the RX is connected
}
void loop()
{
  while(pulseIn( PPMsumPin , LOW) < 5000){
  } //Wait for the beginning of the frame
  for(int x=0; x<=channumber-1; x++)//Loop to store all the channel position
  {
    value[x]=pulseIn( PPMsumPin, LOW); //LOW depends on what type of signal you have
    Serial.print(" CH");
    Serial.print(x);
    Serial.print(": ");
    Serial.print(value[x]); //Print the value
    value[x]=0; //Clear the value after is printed
  }
  Serial.println(""); //Start a new line
}