Method setLNA

RFM69.cpp:1008–1013

============================================================================= setLNA() - disable the AGC and set a manual gain to attenuate input signal Makes receiver hear a "weaker" signal. Use this function to simulate a receiver "distance" from a transmitter newReg should be: (see table 26 RegLna 0x18 values) 000 - gain set by the internal AGC loop (when bits 001 - G1 = highest gain 010 - G2 =

//  111 - reserved
//=============================================================================
uint8_t RFM69::setLNA(uint8_t newReg) {
  byte oldReg;
  oldReg = readReg(REG_LNA);
  writeReg(REG_LNA, ((newReg & 7) | (oldReg & ~7))); // just control the LNA Gain bits for now
  return oldReg;  // return the original value in case we need to restore it
}

// ListenMode sleep/timer - see ListenModeSleep example for proper usage!
void RFM69::listenModeSleep(uint16_t millisInterval) {