Move device code from main.cpp to earlyInitVariant (#9438)

variants/esp32s3/ELECROW-ThinkNode-M5/platformio.ini

@@ -11,6 +11,10 @@ custom_meshtastic_requires_dfu = false
 
 extends = esp32s3_base
 board = ESP32-S3-WROOM-1-N4
+build_src_filter =
+  ${esp32s3_base.build_src_filter}
+  +<../variants/esp32s3/ELECROW-ThinkNode-M5>
+
 build_flags =
   ${esp32s3_base.build_flags}
   -D ELECROW_ThinkNode_M5

variants/esp32s3/ELECROW-ThinkNode-M5/variant.cpp

@@ -0,0 +1,12 @@
+#include "variant.h"
+#include <PCA9557.h>
+
+PCA9557 io(0x18, &Wire);
+
+void earlyInitVariant()
+{
+    Wire.begin(48, 47);
+    io.pinMode(PCA_PIN_EINK_EN, OUTPUT);
+    io.pinMode(PCA_PIN_POWER_EN, OUTPUT);
+    io.digitalWrite(PCA_PIN_POWER_EN, HIGH);
+}

variants/esp32s3/ELECROW-ThinkNode-M5/variant.h

@@ -4,6 +4,8 @@
 #define UART_TX 43
 #define UART_RX 44
 
+#define HAS_PCA9557
+
 // LED
 // Both of these are on the GPIO expander
 #define PCA_LED_USER 1  // the Blue LED