AnalogRead() causes CC1101 RF module receiver to hang up.

Projects Programming
1

Hi all,
I'm using a NEXT CC1101RF module to send sensor values from AnalogRead(A0). This causes the receiver to receiver a packet the is empty, then not receiver any more packets. If I comment out the AnalogRead(), every thing works normal.
It's using the SPI interface on an UNO.
I have it connected according to: Arduino : use a Texas CC1101 – Erwan's Blog Those example do work ok.

I've looked thru the CC1101.cpp & h files, but don't see anything that would affect the analogRead().

The NEXT receiver is this:
http://www.amazon.com/gp/product/B00NPZ3YUA/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

CC1101 uses the spi library, but that shouldn't screw up AnalogRead().

I just thought, maybe I need to add PinMode(A0,INPUT), though by default they're inputs, yes?

Any Ideas to get AnalogRead() to transmitt it's value?

2

Any Ideas to get AnalogRead() to transmitt it's value?

Fix your code. If you don't know how, perhaps you might give some fleeting thought to posting it.

3

I would fix it if I new where. I've been working this problem for about three days, so I turned here.
Transmitter code:

CODE TAGS PLEASE!

 #include "EEPROM.h"
#include "cc1101.h"

CC1101 cc1101;

// The LED is wired to the Arduino Output 4 (physical panStamp pin 19)
#define LEDOUTPUT 4

// counter to get increment in each loop
byte counter;
byte b;
byte syncWord = 199;
int sensorPin = A0;    // select the input pin for the potentiometer
byte sensorValue;
int x;

void blinker()
{
 digitalWrite(LEDOUTPUT, HIGH);
 delay(100);
 digitalWrite(LEDOUTPUT, LOW);
 delay(100);
}

void setup()
{
 Serial.begin(9600);
 Serial.println("start");

 // setup the blinker output
 pinMode(LEDOUTPUT, OUTPUT);
 digitalWrite(LEDOUTPUT, LOW);
 
 // blink once to signal the setup
 blinker();
 
 // reset the counter
 counter=0;
 Serial.println("initializing...");
 // initialize the RF Chip
 cc1101.init();
 
 cc1101.setSyncWord(&syncWord, false);
 cc1101.setCarrierFreq(CFREQ_915);
 cc1101.disableAddressCheck();
 //cc1101.setTxPowerAmp(PA_LowPower);
 
 delay(1000);
 
 Serial.print("CC1101_PARTNUM "); //cc1101=0
 Serial.println(cc1101.readReg(CC1101_PARTNUM, CC1101_STATUS_REGISTER));
 Serial.print("CC1101_VERSION "); //cc1101=4
 Serial.println(cc1101.readReg(CC1101_VERSION, CC1101_STATUS_REGISTER));
 Serial.print("CC1101_MARCSTATE ");
 Serial.println(cc1101.readReg(CC1101_MARCSTATE, CC1101_STATUS_REGISTER) & 0x1f);
 
 Serial.println("device initialized");
 //Serial.println("done");
}

void send_data() 
{
 CCPACKET data;
 
 data.length=3;
 
 byte blinkCount=counter++;
 
 data.data[0]=5;
 data.data[1]=sensorValue;
//  data.data[1]=blinkCount;
 data.data[2]=2;
 Serial.print("data.data[1] :");
 Serial.println(data.data[1]);
 
 //cc1101.flushTxFifo ();

 Serial.print("CC1101_MARCSTATE ");
 Serial.println(cc1101.readReg(CC1101_MARCSTATE, CC1101_STATUS_REGISTER) & 0x1f);

 if(cc1101.sendData(data))
 {
   Serial.print(blinkCount,HEX);
   Serial.println(" sent ok :)");
   blinker();
 }
 else
 {
   Serial.println("sent failed :(");
   blinker();
   blinker();
 }
}


void loop()
{
 sensorValue =analogRead(A0)/1000;
 send_data();
 delay(2000);
}

Receiver code:

#include "EEPROM.h"
#include "cc1101.h"

// The LED is wired to the Arduino Output 4 (physical panStamp pin 19)
#define LEDOUTPUT 4

#define DESTINATION_ADDR 5       // Receiver address

// The connection to the hardware chip CC1101 the RF Chip
CC1101 cc1101;

byte b;
byte i;
byte syncWord = 199;
long counter=0;
byte chan=0;

// a flag that a wireless packet has been received
boolean packetAvailable = false;

void blinker()
{
 digitalWrite(LEDOUTPUT, HIGH);
 delay(1000);
 digitalWrite(LEDOUTPUT, LOW);
 delay(100);
}

/* Handle interrupt from CC1101 (INT0) gdo0 on pin2 */
void cc1101signalsInterrupt(void)
{
 // set the flag that a package is available
 packetAvailable = true;
}

void setup()
{
 Serial.begin(9600);
 Serial.println("start");

 // setup the blinker output
 pinMode(LEDOUTPUT, OUTPUT);
 digitalWrite(LEDOUTPUT, LOW);
 // blink once to signal the setup
//  blinker();
 
 // initialize the RF Chip
 cc1101.init();

 cc1101.setSyncWord(&syncWord, false);
 cc1101.setCarrierFreq(CFREQ_915);
 
 cc1101.disableAddressCheck(); //if not specified, will only display "packet received"
 //cc1101.setTxPowerAmp(PA_LowPower);
 
 Serial.print("CC1101_PARTNUM "); //cc1101=0
 Serial.println(cc1101.readReg(CC1101_PARTNUM, CC1101_STATUS_REGISTER));
 Serial.print("CC1101_VERSION "); //cc1101=4
 Serial.println(cc1101.readReg(CC1101_VERSION, CC1101_STATUS_REGISTER));
 Serial.print("CC1101_MARCSTATE ");
 Serial.println(cc1101.readReg(CC1101_MARCSTATE, CC1101_STATUS_REGISTER) & 0x1f);

 attachInterrupt(0, cc1101signalsInterrupt, FALLING);

 Serial.println("device initialized");
}

void ReadLQI()
{
 byte lqi=0;
 byte value=0;
 lqi=(cc1101.readReg(CC1101_LQI, CC1101_STATUS_REGISTER));
 value = 0x3F - (lqi & 0x3F);
 Serial.print("CC1101_LQI ");
 Serial.println(value);
}

void ReadRSSI()
{
 byte rssi=0;
 byte value=0;

 rssi=(cc1101.readReg(CC1101_RSSI, CC1101_STATUS_REGISTER));

 if (rssi >= 128)
 {
   value = 255 - rssi;
   value /= 2;
   value += 74;
 }
 else
 {
   value = rssi/2;
   value += 74;
 }
 Serial.print("CC1101_RSSI ");
 Serial.println(value);
}

void loop()
{
 if(packetAvailable)
 {
   digitalWrite(LEDOUTPUT, HIGH);

   Serial.println("packet received");
   // Disable wireless reception interrupt
   detachInterrupt(0);
   
   ReadRSSI();
   ReadLQI();
   // clear the flag
   packetAvailable = false;
   
   CCPACKET packet;
  
     if(cc1101.receiveData(&packet) > 0)
     {
       if(!packet.crc_ok) 
       {
         Serial.println("crc not ok");
       }
     
       if(packet.length > 0)
       {
         Serial.print("packet: len ");
         Serial.print(packet.length);
         Serial.print(" data: ");
         for(int j=0; j<packet.length; j++){
           Serial.print(packet.data[j],DEC);
           Serial.print(" ");
         }
         Serial.println(".");
       }
     }
   // Enable wireless reception interrupt
   attachInterrupt(0, cc1101signalsInterrupt, FALLING);
   digitalWrite(LEDOUTPUT, LOW);
 }
}
4 
 sensorValue =analogRead(A0)/1000;

What values will be stored in sensorValue? Does sending 0 or 1 really make sense?

Does it matter if you use a different analog pin?

Does it matter if you post a link to the hardware and libraries you are using? (Hint: Absolutely)

5

Hi, it doesn't really matter, 0 or 1 or any number, the problem is AnalogRead() hangs up.

Any Analog pin causes the same problem.

I did post a link to the hardware:

The NEXT receiver is this:
http://www.amazon.com/gp/product/B00NPZ3YUA/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

And the libraries are #include "EEPROM.h" and #include "cc1101.h".

(CC1101 is from the PanStamp library: GitHub - panStamp/panstamp: panStamp wireless ecosystem - Project files)

Thanks for helping