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feat(companion_radio): add external FEM gain preferences for RX and TX for companions

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Introduced consistent preferences for external LoRa FEM RX and TX gain settings in NodePrefs. Updated companion MyMesh to apply these settings during initialization and transmission. Added unit tests to verify the round-trip serialization of these new preferences.
This commit is contained in:
agessaman
2026-08-10 11:59:26 -07:00
parent c58c9b2f31
commit e2aa7b98f9
5 changed files with 144 additions and 15 deletions
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examples/companion_radio/MyMesh.cpp
+4
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@@ -885,6 +885,8 @@ MyMesh::MyMesh(mesh::Radio &radio, mesh::RNG &rng, mesh::RTCClock &rtc, SimpleMe
_prefs.tx_power_dbm = LORA_TX_POWER;
_prefs.gps_enabled = 0; // GPS disabled by default
_prefs.gps_interval = 0; // No automatic GPS updates by default
_prefs.radio_fem_rxgain = 1;
_prefs.radio_fem_txgain = 0;
//_prefs.rx_delay_base = 10.0f; enable once new algo fixed
_prefs.setRepeatEn(false);
#if defined(USE_SX1262) || defined(USE_SX1268)
@@ -974,6 +976,8 @@ void MyMesh::begin(bool has_display) {
radio_driver.setParams(_prefs.freq, _prefs.bw, _prefs.sf, _prefs.cr);
radio_driver.setTxPower(_prefs.tx_power_dbm);
radio_driver.setRxBoostedGainMode(_prefs.rx_boosted_gain);
board.setLoRaFemLnaEnabled(_prefs.radio_fem_rxgain);
board.setLoRaFemPaGainEnabled(_prefs.radio_fem_txgain);
MESH_DEBUG_PRINTLN("RX Boosted Gain Mode: %s",
radio_driver.getRxBoostedGainMode() ? "Enabled" : "Disabled");
}
examples/companion_radio/NodePrefs.h
+5 -2
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@@ -32,6 +32,8 @@ public:
uint32_t gps_interval = 0; // GPS read interval in seconds
uint8_t autoadd_config = 0; // bitmask for auto-add contacts config
uint8_t rx_boosted_gain = 0; // SX126x RX boosted gain mode (0=power saving, 1=boosted)
uint8_t radio_fem_rxgain = 0; // external LoRa FEM RX gain (LNA)
uint8_t radio_fem_txgain = 0; // external LoRa FEM TX gain (low by default)
uint8_t _client_repeat = 0; // DEPRECATED -> use repeat.disable_fwd
uint8_t path_hash_mode = 0; // which path mode to use when sending
uint8_t autoadd_max_hops = 0; // 0 = no limit, 1 = direct (0 hops), N = up to N-1 hops (max 64)
@@ -50,7 +52,8 @@ private:
//def("cad", _parent->cad_enabled);
//def("int_thr", _parent->interference_threshold);
def("rxgain", _parent->rx_boosted_gain);
def("fem_rxgain", _parent->rx_boosted_gain);
def("fem_rxgain", _parent->radio_fem_rxgain);
def("fem_txgain", _parent->radio_fem_txgain);
def("tx", _parent->tx_power_dbm);
def("af", _parent->airtime_factor);
def("rxdelay", _parent->rx_delay_base);
@@ -133,4 +136,4 @@ public:
// new accessor methods
bool isRepeatEn() const { return repeat.disable_fwd == 0; }
void setRepeatEn(bool en) { repeat.disable_fwd = en ? 0 : 1; }
};
};