 static RF12Config config;
 
 static char cmd;
-static byte value, stack[RF12_MAXDATA], top, sendLen, dest, quiet;
+static byte value, stack[RF12_MAXDATA+4], top, sendLen, dest, quiet;
 static byte testbuf[RF12_MAXDATA], testCounter, useHex;
 
 static void showNibble (byte nibble) {

  
  if (!rf12_config())
    Serial.println("config save failed");
}

// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  "  <n> b      - set MHz band (4 = 433, 8 = 868, 9 = 915)" "\n"
  "  <nnn> g    - set network group (RFM12 only allows 212, 0 = any)" "\n"
  "  <n> c      - set collect mode (advanced, normally 0)" "\n"
  "  t          - broadcast max-size test packet, request ack" "\n"
  "  ...,<nn> a - send data packet to node <nn>, request ack" "\n"
  "  ...,<nn> s - send data packet to node <nn>, no ack" "\n"
  "  <n> l      - turn activity LED on PB1 on or off" "\n"
  "  <n> q      - set quiet mode (1 = don't report bad packets)" "\n"
