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    send analogic information with RN 171-EK

    hello, i successed to send hello message from RN171 EK to my PC (java code ) and with cable (pc and RN171) but now i want to program my card to send any information every 10s and withot using any cable so i m trying with this configuration in teraterm
    Code:
    <4.00> Joining wifi now..
    Associated!
    DHCP: Start
    DHCP in 4319ms, lease=86400s
    IF=UP
    DHCP=ON
    IP=192.168.1.5:2000
    NM=255.255.255.0
    GW=192.168.1.1
    set ip protocol 1
    AOK
    <4.00> set ip host 192.168.1.4
    AOK
    <4.00> set ip remote 999
    AOK
    <4.00> set ip local 2000
    AOK
    set sys auto 10 // Automatically connect every 10 seconds
    set option format 7 // Send the header and sampled binary data converted to ASCII
    set q sensor 0xFF // Set the sensor mask to sample all channels
    save // Save the configuration to the config file
    reboot // Reboot so that the settings take effect
    and when i put the battery i dont receive any information
    can you help me plz
    thanks

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  2. #2
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    Re: send analogic information with RN 171-EK

    how did you send the hello message from RN 171 to pc?i want to know the steps



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    Re: send analogic information with RN 171-EK

    find attached a MPLAB project for an Explorer 16 which enables keyboard commands to be transmitted to a TCP server via a RN171 and also will transmit ADC readings from the potentiometer when CTRL/A is hit

    the console terminal output was
    Code:
    PIC24 to RN171 test
    CMD
    join
    Auto-Assoc ssid chan=1 mode=MIXED SCAN OK
    <4.00> Joining ssid now..
    Associated!
    DHCP: Start
    DHCP in 1855ms, lease=86400s
    IF=UP
    DHCP=ON
    IP=192.168.1.64:2000
    NM=255.255.255.0
    GW=192.168.1.254
    set ip protocol 8
    AOK
    <4.00> open 192.168.1.65 20000
    Connect to 192.168.1.65:20000
    <4.00> *OPEN*CTRL/A hit - transmit ADC data to RN171
    transmitting adc = 52
    transmitting adc = 52
    transmitting adc = 52
    transmitting adc = 52
    transmitting adc = 440
    transmitting adc = 645
    transmitting adc = 799
    transmitting adc = 260
    the output of the Java TCP server program was
    Code:
    TCP server on IP address 192.168.1.65 port 20000
    TCP server starting: IP address PC/192.168.1.65 port 20000
    Client connect from IP address /192.168.1.64 port 57303
    *HELLO*transmitting ADC values
    adc = 52
    adc = 52
    adc = 52
    adc = 52
    adc = 440
    adc = 645
    adc = 799
    adc = 260
    the Java server code is
    Code:
    // server which waits for messages from a client
    import java.io.*;
    import java.util.*;
    import java.net.*;
    
    
    public class TCPserver extends Thread
    {
            private ServerSocket   serverSocket;
            InputStream br=null;
            OutputStream pw=null;
            int receivePort;                // port to receive  from
            boolean threadRunning = true;   // flag to terminate thread
    
            TCPserver(int receivePort)    // constructor to receive on port receivePort
        {
                    this.receivePort = receivePort;
        }
    
            // terminate the thread by setting flag
            public void stopTCPserver()
            {
                    threadRunning = false;
            }
    
            public void run()                // thread run method, receives and buffers datagrams
            {
              Socket socket=null;
              try
                  {
                  while (threadRunning)
                  {
                      System.out.println("TCP server starting: IP address " 
                           + InetAddress.getLocalHost().toString() + " port " + receivePort );
                      serverSocket = new ServerSocket(receivePort);
                      socket = serverSocket.accept(); // Wait for client to connect.
                      System.out.println("Client connect from IP address " + socket.getInetAddress()
                                      + " port " + socket.getPort());
                      br  =  socket.getInputStream();
                      pw = socket.getOutputStream() ;
                      while(threadRunning)
                        try
                        {
                          int code = br.read();
                          //System.out.println( "Server received byte: '" + code + "' char " + (char) code);
                          if(code==13) System.out.println();                // newline
                          else System.out.print( (char) code);
                        }
                        catch (Exception se) {System.err.println("done"); break;}
                      serverSocket.close();
                    }
                  }
              catch (Exception se) {System.err.println("run() " + se); }
         
              System.exit(1);                                                 // exit on failure
            }
    
    
    public static void main(String args[])
    {
         int receivePort=20000;                                 // port to receive datagrams on
         try
            {
            System.out.println("TCP server on IP address " + InetAddress.getLocalHost().getHostAddress() + " port " + receivePort);
            TCPserver frameInput = new TCPserver(receivePort);    // create server to receive messages
            frameInput.start();                                   // and start it
            }
          catch (Exception se) {System.err.println("main() " + se); }
     }
    
    }
    Last edited by horace1; 29th March 2015 at 13:33.


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  4. #4
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    Re: send analogic information with RN 171-EK

    thanks for your response but in my case i don't use the EXplrer16; i would like just to use the RN-171-EK;It is possible to detct the analogic value just with RN171-EK or it is ncessary too usee the explorer 16



  5. #5
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    Re: send analogic information with RN 171-EK

    Quote Originally Posted by ings View Post
    thanks for your response but in my case i don't use the EXplrer16; i would like just to use the RN-171-EK;It is possible to detct the analogic value just with RN171-EK or it is ncessary too usee the explorer 16
    to read the RN171 sensors you can use UDP broadcast
    Code:
    <4.00> join
    Auto-Assoc ssid chan=1 mode=MIXED SCAN OK
    <4.00> Joining SSID now..
    Associated!
    DHCP: Start
    DHCP in 1966ms, lease=86400s
    IF=UP
    DHCP=ON
    IP=192.168.1.64:2000
    NM=255.255.255.0
    GW=192.168.1.254
    Listen on 2000
    
    <4.00> set q s 0x0c		sample sensors 2 and 3
    AOK
    <4.00> set b a 192.168.1.65	set broadcast address
    AOK
    <4.00> set b p 999		set broadcast port
    AOK
    <4.00> set b i 7		set broadcast interval 1 packet every 8 seconds
    AOK
    on my RN171 pictail sensors 2 and 3 are connected to switches which can ground the inputs

    when I run the UDP sever I get
    Code:
    UDP server on IP address 192.168.1.65 port 999
    
    From IP /192.168.1.64 UDP string received - length 110
    battery volts 2796
    Sensors  0 0 0 0 0 3 0 12 0 0 0 0 0 0 0 0 0 0
    Sensor 2 = 48 Sensor 3 = 192
     UDP data 'X*5(V|*******H****Time NOT SET**wifly-EZX Ver 4.00.1, Apr 19testRN171----------------------*:'
    
    
    From IP /192.168.1.64 UDP string received - length 110
    battery volts 2796
    Sensors  0 0 0 0 0 9 62 23 0 0 0 0 0 0 0 0 0 0
    Sensor 2 = 144 Sensor 3 = 254320
     UDP data 'X*5(V|************Time NOT SET**wifly-EZX Ver 4.00.1, Apr 19testRN171----------------------*:'
    
    
    From IP /192.168.1.64 UDP string received - length 110
    battery volts 2797
    Sensors  0 0 0 0 62 20 63 14 0 0 0 0 0 0 0 0 0 0
    Sensor 2 = 254272 Sensor 3 = 258272
     UDP data 'X*5(V|************Time NOT SET**wifly-EZX Ver 4.00.1, Apr 19testRN171----------------------*:'
    I display the battery voltage, the raw snsors bytes and the values of sensor 2 and 3 (16 bit value received as two bytes)
    there are three datagrams shown
    1. both sensors grounded
    2. sensor 2 grounded
    3. both sensors floating

    the UDP server code is
    Code:
    // simple server waiting for datagrams and extracting ans displaying string
    
    import java.io.*;
    import java.util.*;
    import java.net.*;
    
    public class UDPserver extends Thread
    {
    public static void main(String args[])
    {
       try
            {
            // get machine IP address - two methods
            int receivePort=999, i;                                                                                        // port to receive datagrams from
            //Socket soc = new Socket("192.168.1.1", 80);
            //System.out.println("UDP server on IP address " + soc.getLocalAddress().getHostAddress() + " port " + receivePort);
            //soc.close();
            System.out.println("UDP sevrer on IP address " + InetAddress.getLocalHost().getHostAddress() + " port " + receivePort);
            InetAddress remoteIPaddress;                                    // IP address of remote host
            int remotePort;                                                 // port on remote host to send frames too
            byte[] buffer = new byte[65507];                                // array to put datagrams in
            DatagramPacket dp = new DatagramPacket(buffer, buffer.length);  // create packet for datagrams
                  // open DatagramSocket to receive and a DatagramePacket to hold the datagrams
                  DatagramSocket ds = new DatagramSocket(receivePort);
                  // loop forever reading datagrams from the DatagramSocket
                  while (true)
                    {
                     ds.receive(dp);                                         // wait for next datagram
                     byte[] data = dp.getData();                             // get datagram contents
                     System.out.println("\nFrom IP " + dp.getAddress() +" UDP string received - length " + dp.getLength() );
                     // display battery voltage
                     System.out.println("battery volts " + ((data[14]<<8) +data[15]) );
                     // print the sensor bytes - 16 bytes array index starting at 93 (not 94) 
                     System.out.print("Sensors ");
                     for  (i=93;i<=dp.getLength();i++)
                        System.out.print(" " + ((data[i])));
                     // print sensor 2 and 3 values
                     System.out.println("\nSensor 2 = " +  (((data[97]<<8) +data[98])<<4) + " Sensor 3 = " +  (((data[99]<<8) +data[100])<<4));
                     // print datagram contents (replace none printing characters with *)
                     for  (i=0;i<dp.getLength();i++)
                         if(data[i]<32) data[i]='*';
                     String s = new String(data, 0, 93);         // create a string from the data
                     System.out.println(" UDP data '" + s + "'\n");
                    }
                  }
            catch (IOException se) {System.err.println("error " + se);}
            System.exit(1);                                                 // exit on failure
    }
    }
    the UDP datagram packet is 110 bytes long with the sensors data in array index 93 to 109 (not 94 to 110 as specified in the RN171 WiFi manual)
    http://ww1.microchip.com/downloads/e.../50002230A.pdf


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  6. #6
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    Re: send analogic information with RN 171-EK

    Quote Originally Posted by ings View Post
    thanks for your response but in my case i don't use the EXplrer16; i would like just to use the RN-171-EK;It is possible to detct the analogic value just with RN171-EK or it is ncessary too usee the explorer 16
    to read the RN171 sensors you can use the TCP HTTP broadcast facility
    Code:
    join
    Auto-Assoc SSID chan=1 mode=MIXED SCAN OK
    <4.00> Joining SSID now..
    Associated!
    DHCP: Start
    DHCP in 1691ms, lease=86400s
    IF=UP
    DHCP=ON
    IP=192.168.1.64:2000
    NM=255.255.255.0
    GW=192.168.1.254
    Listen on 2000
    set ip h 192.168.1.65	set TCP server IP
    AOK
    <4.00> set ip r 80	set TCP server port for HTTP
    AOK
    <4.00> set i p 18	enable TCP and HTTP client mode
    AOK
    <4.00> set o f 7	append sensor data to HTTP
    AOK
    <4.00> set b i 7	set broadcast 1 packet every 8 seconds
    AOK
    <4.00> open		open TCP client connection
    <4.00> *OPEN*
    on my RN171 pictail sensors 2 and 3 are connected to switches which can ground the inputs

    when I run the TCP server i get
    Code:
    ready to receive TCP  from socket 80
    TCP server starting: IP address bb-TOSH/192.168.1.65 port 80
    TCP Client connect from IP address /192.168.1.64 port 20472
    
    TCP data '*HELLO*0D11000000003DFC000C0000000000000000 HTTP/1.0
    Host: dns1
    '
    sensor 2 0x3DFC sensor 3 0x00C0
    sensor 2 15868 sensor 3 192
    
    TCP data '*HELLO*0D11000000000007000D0000000000000000 HTTP/1.0
    Host: dns1
    '
    sensor 2 0x0007 sensor 3 0x00D0
    sensor 2 7 sensor 3 208
    
    TCP data '*HELLO*0D11000000003E243F110000000000000000 HTTP/1.0
    Host: dns1
    '
    sensor 2 0x3E24 sensor 3 0xF110
    sensor 2 15908 sensor 3 61712
    there are three readings shown
    1. sensor 3 grounded
    2. both sensors grounded
    3. both sensors floating

    the TCP server code
    Code:
    // TCP server which waits for messages from a client
    import java.io.*;
    import java.util.*;
    import java.net.*;
    
    
    public class TCPserver extends Thread
    {
            private ServerSocket   serverSocket;
            InputStream br=null;
            OutputStream pw=null;
            int receivePort;                // port to receive  from
            boolean threadRunning = true;   // flag to terminate thread
    
            TCPserver(int receivePort)    // constructor to receive datagrams on port receivePort
        {
                    this.receivePort = receivePort;
        }
    
            // terminate the thread by setting flag
            public void stopTCPserver()
            {
                    threadRunning = false;
            }
    
            public void run()                // thread run method, receives and buffers datagrams
            {
              Socket socket=null;
              int frame=0;
              try
                  {
                  while (threadRunning)
                  {
                      System.out.println("TCP server starting: IP address " 
                           + InetAddress.getLocalHost().toString() + " port " + receivePort );
                      serverSocket = new ServerSocket(receivePort);
                      socket = serverSocket.accept(); // Wait for client to connect.
                      System.out.println("TCP Client connect from IP address " + socket.getInetAddress()
                                      + " port " + socket.getPort());
                      br  = ( ( socket.getInputStream() ) );
                      pw = ( socket.getOutputStream() );
                      while(threadRunning)
                      try
                        {
                        // read TCP packet into byte array and convert to a string
                        byte data[]=new byte[10000];
                        int length = br.read(data);
                        String s = new String(data, 0, length);         // create a string from the data   
                        System.out.println("\nTCP data '" + s +"'");
                        // find start of data, e.g. *HELLO*
                        int hello = s.indexOf("*HELLO*");
                        // and extract the hexadecimal string for sensors 2 and 3
                        String sensor2 = s.substring(hello+19, hello+23);
                        String sensor3 = s.substring(hello+24, hello+28);
                        System.out.println("sensor 2 0x" + sensor2 + " sensor 3 0x" + sensor3 );
                        // convert the hexadecimal values to integer and display
                        System.out.println("sensor 2 " + Integer.parseInt(sensor2, 16) 
                              + " sensor 3 " + Integer.parseInt(sensor3, 16) );
                       }
                        catch (Exception se) {System.err.println("error " + se); break;}
                        serverSocket.close();
                    }
                  }
              catch (Exception se) {System.err.println("run() " + se); }
         
              System.exit(1);                                                 // exit on failure
            }
    
    
    public static void main(String args[])
    {
            int receivePort=80;//10000;//999;//20000;             // port to receive 
            TCPserver frameInput = new TCPserver(receivePort);    // create server to receive messages
            frameInput.start();                                   // and start it
            System.out.println("ready to receive TCP  from socket " + receivePort);
            }
    
    }
    the data starts with *HELLO* with sensors 2 and 3 at offset 19 and 24 respectively


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  7. #7
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    Re: send analogic information with RN 171-EK

    can you pllz explain me this line
    TCP data '*HELLO*0D11000000003DFC000C0000000000000000 HTTP/1.0
    Host: dns1
    thanks in advance



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  8. #8
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    Re: send analogic information with RN 171-EK

    the TCP packet data
    Code:
    *HELLO*0D11000000003DFC000C0000000000000000 HTTP/1.0
    Host: dns1
    1. starts at index 0 with *HELLO*
    2. followed by 4 characters 0D11 which I think is the GPIO pins (I have not found any documentation on this)
    3. followed by the 8 analogue sensor values represented by 4 characters each

    the sensors 2 and 3 (which on the RN171 pictail are connected to switches which can ground the inputs) are therefore at offsets in the string 19 and 24 respectively
    The strings representing the hexadecimal values of sensor 2 and 3 can be extracted using java method String.subString()
    Code:
               String sensor2 = s.substring(hello+19, hello+23);
                        String sensor3 = s.substring(hello+24, hello+28);
    and the integer parsed using Integer.parseInt()
    Code:
                        System.out.println("sensor 2 " + Integer.parseInt(sensor2, 16) 
                              + " sensor 3 " + Integer.parseInt(sensor3, 16) );


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  9. #9
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    Re: send analogic information with RN 171-EK

    So if i want to send just hello messsage it is possible to do this

    - - - Updated - - -

    because in my case i haven't any sensor and i want just to test the transmission of a hello message



  10. #10
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    Re: send analogic information with RN 171-EK

    Quote Originally Posted by ings View Post
    So if i want to send just hello messsage it is possible to do this

    - - - Updated - - -

    because in my case i haven't any sensor and i want just to test the transmission of a hello message
    yes, set up the TCP as the example in earlier post, e.g.
    Code:
    set ip h 192.168.1.65	set TCP server IP
    AOK
    <4.00> set ip r 80	set TCP server port for HTTP
    AOK
    <4.00> set i p 18	enable TCP and HTTP client mode
    AOK
    <4.00> set o f 7	append sensor data to HTTP
    AOK
    <4.00> set b i 7	set broadcast 1 packet every 8 seconds
    AOK
    <4.00> open		open TCP client connection
    <4.00> *OPEN*
    and you should receive the TCP packets - the sensor data will be 0's or possibly random if the inputs are floating


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    Re: send analogic information with RN 171-EK

    in your case
    192.168.1.65 is the adress of the receiver (TCP Server )?
    192.168.1.64 is the ip of your wireless network?

    - - - Updated - - -

    i have a problem with my rn171 because sometimes it dont' succed to detect and join the wireless network ; is it the problem in all RN171 or it is possible to solve this problem
    thanks in advance



  12. #12
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    Re: send analogic information with RN 171-EK

    Quote Originally Posted by ings View Post
    in your case
    192.168.1.65 is the adress of the receiver (TCP Server )?
    192.168.1.64 is the ip of your wireless network?
    yes

    Quote Originally Posted by ings View Post
    i have a problem with my rn171 because sometimes it dont' succed to detect and join the wireless network ; is it the problem in all RN171 or it is possible to solve this problem
    thanks in advance
    I had problems connecting to my main WiFi router which was a distance of about 10 metres from the RN171 board - I think the power output of the RN171 was too low for reliable communication
    using another WiFi router close to the RN171 worked OK
    if you do a scan one of the displayed parameters indicates the signal level


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    Re: send analogic information with RN 171-EK

    in my case i have receives this data witout using any sensor
    *HELLO**HELLO*1D17CF29CF2907F23D2307C107FD30773092 HTTP/1.0
    Host: dns1

    *HELLO*1D17CF29CF2907F53D2906BE07FD307D3088 HTTP/1.0
    Host: dns1

    *HELLO*1D17CF29CF2907F53D2309D407FC307C3093 HTTP/1.0
    Host: dns1

    *HELLO*1D17CF29CF2907F33D2507B907FE307B3094 HTTP/1.0
    Host: dns1


    so it is present the transmssion of hello message and
    1D17CF29CF2907F33D2507B907FE307B3094 present the data in sensor
    thanks in advace



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    Re: send analogic information with RN 171-EK

    i have a problem just in the Tcp mode ; when i configure with cable it work and when i put the battry it don't work and it display me this messgae in tera term
    <4.00> open
    <4.00> *OPEN**CLOS**CLOS*
    another question about RN171; the default of RN171 is about the connexion in wifi and the detection of an acess point



  15. #15
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    Re: send analogic information with RN 171-EK

    Quote Originally Posted by ings View Post
    in my case i have receives this data witout using any sensor
    *HELLO*1D17CF29CF2907F33D2507B907FE307B3094 HTTP/1.0
    Host: dns1

    so it is present the transmssion of hello message and
    1D17CF29CF2907F33D2507B907FE307B3094 present the data in sensor
    thanks in advace
    in my case I only have sensors 2 and 3 connected so my setting for the set q sensor command was
    Code:
    set q s 0x0c		sample sensors 2 and 3
    the other sensor values are transmitted as 0's, e.g.
    Code:
    TCP data '*HELLO*0D11000000003DFC000C0000000000000000 HTTP/1.0
    Host: dns1
    looking at your data its appears the default is to transmit all the sesnor values in broadcast, e.g. set up so
    Code:
    set q s 0xFF		sample all sensors
    and you get
    Code:
    *HELLO*1D17CF29CF2907F33D2507B907FE307B3094 HTTP/1.0
         Host: dns1
    if the inputs are floating you get ransom data - can you apply known values to some input (be careful I seem to remember the maximum input is 1.5volts)

    - - - Updated - - -

    Quote Originally Posted by ings View Post
    i have a problem just in the Tcp mode ; when i configure with cable it work and when i put the battry it don't work and it display me this messgae in tera term
    <4.00> open
    <4.00> *OPEN**CLOS**CLOS*
    another question about RN171; the default of RN171 is about the connexion in wifi and the detection of an acess point
    it looks like the TCP connection is opening OK and then immediatly closing
    possibly when working from battery the current drain when transmitting to too large, the battery volts drop and the RN171 resets?
    what does the server say?


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  16. #16
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    Re: send analogic information with RN 171-EK

    the rn171 don't reset and the tcp server play me error connection
    so when i m trying with putting the battery and the cable in same time and when the configuration seting is finish i discnnect the cable:; and it work
    if i put the cable and battery in the same time it work via the baterry or with the cable



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    Re: send analogic information with RN 171-EK

    Quote Originally Posted by ings View Post
    the rn171 don't reset and the tcp server play me error connection
    so when i m trying with putting the battery and the cable in same time and when the configuration seting is finish i discnnect the cable:; and it work
    if i put the cable and battery in the same time it work via the baterry or with the cable
    not sure what your problem is?
    have you set up the configuration and saved it to the configuration file using the save command

    in particular set autojoin
    set wlan join 1

    so on power up the RN171 will join the network, open the TCP and start broadcasting?


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  18. #18
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    Re: send analogic information with RN 171-EK

    another question about RN171-EK;
    i would like to know if i put the battery and the usb cable in the same time, so the RN171 will take power via the PC or via the2 battery



  19. #19
    Advanced Member level 5
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    Re: send analogic information with RN 171-EK

    Quote Originally Posted by ings View Post
    another question about RN171-EK;
    i would like to know if i put the battery and the usb cable in the same time, so the RN171 will take power via the PC or via the2 battery
    looking at the RN131/171 evaluation kit users guide
    http://ww1.microchip.com/downloads/e...S50002183A.pdf

    3.1.1 Powering the Module
    The RN131/RN171 Evaluation Board is powered using the USB cable or through the battery pack, which holds two AAA batteries. However, RN131 Evaluation Board can also be powered using air-wiring.
    Note: The RN171 module can also be powered through the USB cable while a battery pack is installed.


    also look at the schematic
    http://ww1.microchip.com/downloads/e...rev2_sch_r.PDF


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  20. #20
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    Re: send analogic information with RN 171-EK

    please it is possible to calculate the value of CRC



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