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Fix PA on RAK3401 when GPS missing #3275

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Merged
liamcottle merged 1 commit into from
Aug 24, 2026
+10 −0
Merged

Fix PA on RAK3401 when GPS missing #3275

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10 changes: 10 additions & 0 deletions src/helpers/sensors/EnvironmentSensorManager.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -831,11 +831,15 @@ bool EnvironmentSensorManager::gpsIsAwake(uint8_t ioPin){
}
#endif

#ifndef RAK_3401
//set initial waking state
pinMode(ioPin,OUTPUT);
digitalWrite(ioPin,LOW);
delay(500);
digitalWrite(ioPin,HIGH);
#endif

// give gps time to power up
delay(500);

//Try to init RAK12500 on I2C
Expand Down Expand Up @@ -871,7 +875,9 @@ bool EnvironmentSensorManager::gpsIsAwake(uint8_t ioPin){
return true;
}

#ifndef RAK_3401
pinMode(ioPin, INPUT);
#endif
MESH_DEBUG_PRINTLN("GPS did not init with this IO pin... try the next");
return false;
}
Expand All @@ -880,8 +886,10 @@ bool EnvironmentSensorManager::gpsIsAwake(uint8_t ioPin){
void EnvironmentSensorManager::start_gps() {
gps_active = true;
#ifdef RAK_WISBLOCK_GPS
#ifndef RAK_3401
pinMode(gpsResetPin, OUTPUT);
digitalWrite(gpsResetPin, HIGH);
#endif
return;
#endif

Expand All @@ -896,8 +904,10 @@ void EnvironmentSensorManager::start_gps() {
void EnvironmentSensorManager::stop_gps() {
gps_active = false;
#ifdef RAK_WISBLOCK_GPS
#ifndef RAK_3401 // rak3401 shouldn't turn off WB_IO2 as it powers the PA
pinMode(gpsResetPin, OUTPUT);
digitalWrite(gpsResetPin, LOW);
#endif
return;
#endif

Expand Down
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