cleanup, display screen abstraction

1 files changed, 18 insertions, 0 deletions

diff --git a/source/rtc.cpp b/source/rtc.cpp
index c355c90..ddb68c0 100644
--- a/source/rtc.cpp
+++ b/source/rtc.cpp
@@ -4,6 +4,8 @@
 nrf_drv_rtc_t RTC::rtc = NRF_DRV_RTC_INSTANCE(2);
 unsigned int RTC::rtcCount = 0;
 
+char RTC::message[16] = "";
+
 void RTC::begin(void)
 {
 	//Initialize RTC instance
@@ -19,6 +21,22 @@ void RTC::begin(void)
 	nrf_drv_rtc_enable(&rtc);
 }
 
+void RTC::showTime(Display& display)
+{
+	static unsigned int oldTicks = 0;
+	if (auto t = rtcCount; t != oldTicks) {
+		oldTicks = t;
+
+		display.setCursor(0, 10);
+		display.printf("%2d:%02d:%02d", t / 3600, (t % 3600) / 60,
+			t % 60);
+		if (*message != '\0') {
+			display.setCursor(0, 100);
+			display.printf("%-16s", message);
+		}
+	}
+}
+
 void RTC::handler([[maybe_unused]] nrf_drv_rtc_int_type_t int_type)
 {
   static unsigned char counter = 0;