xiao-ble: add initial support for the Xiao BLE + Ebyte E22-900M30S (#2633)

Co-authored-by: Ben Meadors <benmmeadors@gmail.com>

src/main.cpp

@@ -250,6 +250,19 @@ void setup()
 
     fsInit();
 
+#if defined(_SEEED_XIAO_NRF52840_SENSE_H_)
+
+    pinMode(CHARGE_LED, INPUT); // sets to detect if charge LED is on or off to see if USB is plugged in
+
+    pinMode(HICHG, OUTPUT);
+    digitalWrite(HICHG, LOW); // 100 mA charging current if set to LOW and 50mA (actually about 20mA) if set to HIGH
+
+    pinMode(BAT_READ, OUTPUT);
+    digitalWrite(BAT_READ, LOW); // This is pin P0_14 = 14 and by pullling low to GND it provices path to read on pin 32 (P0,31)
+                                 // PIN_VBAT the voltage from divider on XIAO board
+
+#endif
+
 #ifdef I2C_SDA1
     Wire1.begin(I2C_SDA1, I2C_SCL1);
 #endif