Slight delay for GC1109 FEM power-up

weebl2000 · weebl2000 · commit df0464c32e0a · 2026-01-10T18:26:58.000+01:00
diff --git a/variants/heltec_v4/HeltecV4Board.cpp b/variants/heltec_v4/HeltecV4Board.cpp
@@ -33,6 +33,7 @@ void HeltecV4Board::begin() {
       // CSD (GPIO2): Chip enable - must be HIGH for GC1109 to work
       pinMode(P_LORA_PA_EN, OUTPUT);
       digitalWrite(P_LORA_PA_EN, HIGH);
+      delay(1);  // Allow GC1109 FEM time to power up
     }
 
     periph_power.begin();

Original file line number	Diff line number	Diff line change
`@@ -33,6 +33,7 @@ void HeltecV4Board::begin() {`
`33`	`33`	`// CSD (GPIO2): Chip enable - must be HIGH for GC1109 to work`
`34`	`34`	`pinMode(P_LORA_PA_EN, OUTPUT);`
`35`	`35`	`digitalWrite(P_LORA_PA_EN, HIGH);`
	`36`	`+ delay(1); // Allow GC1109 FEM time to power up`
`36`	`37`	`}`
`37`	`38`
`38`	`39`	`periph_power.begin();`