Enable deep sleep in zmk

Author: tsironis

boards/shields/charybdis/charybdis_right.conf

@@ -1,7 +1,12 @@
 CONFIG_SPI=y
 CONFIG_INPUT=y
 CONFIG_ZMK_POINTING=y
-CONFIG_ZMK_EXT_POWER=y
+# Disable external power control for reduced deep sleep consumption
+# Following 280Zo optimization: https://github.com/280Zo/charybdis-wireless-mini-zmk-firmware
+# CONFIG_ZMK_EXT_POWER is set to 'n' to reduce power consumption during deep sleep
+# Uncomment below if you need external power control for peripherals (displays, lighting)
+#CONFIG_ZMK_EXT_POWER=y
+CONFIG_ZMK_EXT_POWER=n
 
 CONFIG_PMW3610_ALT=y
 CONFIG_PMW3610_ALT_SMART_ALGORITHM=y

config/charybdis.conf

@@ -11,3 +11,9 @@ CONFIG_BT_L2CAP_TX_BUF_COUNT=32
 CONFIG_ZMK_BLE_EXPERIMENTAL_FEATURES=y
 CONFIG_ZMK_BEHAVIORS_QUEUE_SIZE=512
 
+# Deep Sleep Configuration
+# Enable deep sleep support to reduce power consumption when idle
+CONFIG_ZMK_SLEEP=y
+
+# Testing timeout: 1-2 minutes (60000-120000ms)
+# CONFIG_ZMK_IDLE_SLEEP_TIMEOUT=120000