From 83b70b31670e46292c85bcf998c75bdaa63ad221 Mon Sep 17 00:00:00 2001
From: Matthew Harrold <github@marrold.co.uk>
Date: Tue, 17 Jun 2025 23:12:10 +0100
Subject: [PATCH] Add support for Seeed NRF + RTC

---
 variants/xiao_nrf52/target.cpp | 5 +++--
 variants/xiao_nrf52/target.h   | 3 ++-
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/variants/xiao_nrf52/target.cpp b/variants/xiao_nrf52/target.cpp
index 724e7c63..853855cd 100644
--- a/variants/xiao_nrf52/target.cpp
+++ b/variants/xiao_nrf52/target.cpp
@@ -8,7 +8,8 @@ RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BU
 
 WRAPPER_CLASS radio_driver(radio, board);
 
-VolatileRTCClock rtc_clock;
+VolatileRTCClock fallback_clock;
+AutoDiscoverRTCClock rtc_clock(fallback_clock);
 EnvironmentSensorManager sensors;
 
 #ifndef LORA_CR
@@ -16,7 +17,7 @@ EnvironmentSensorManager sensors;
 #endif
 
 bool radio_init() {
-//  rtc_clock.begin(Wire);
+    rtc_clock.begin(Wire);
   
 #ifdef SX126X_DIO3_TCXO_VOLTAGE
   float tcxo = SX126X_DIO3_TCXO_VOLTAGE;
diff --git a/variants/xiao_nrf52/target.h b/variants/xiao_nrf52/target.h
index ec298a43..eb299006 100644
--- a/variants/xiao_nrf52/target.h
+++ b/variants/xiao_nrf52/target.h
@@ -5,12 +5,13 @@
 #include <helpers/RadioLibWrappers.h>
 #include <helpers/nrf52/XiaoNrf52Board.h>
 #include <helpers/CustomSX1262Wrapper.h>
+#include <helpers/AutoDiscoverRTCClock.h>
 #include <helpers/ArduinoHelpers.h>
 #include <helpers/sensors/EnvironmentSensorManager.h>
 
 extern XiaoNrf52Board board;
 extern WRAPPER_CLASS radio_driver;
-extern VolatileRTCClock rtc_clock;
+extern AutoDiscoverRTCClock rtc_clock;
 extern EnvironmentSensorManager sensors;
 
 bool radio_init();