From 9edce2359a62cd56fa9787114df84868b7436843 Mon Sep 17 00:00:00 2001
From: etracer65 <github@etracer.net>
Date: Sat, 24 Mar 2018 20:56:25 -0400
Subject: [PATCH] Add current battery voltage as an option for the OSD stats
 page (#5531)

Allows the user to configure a new OSD stat item called "BATTERY" that will display a live and updating battery voltage. This would allow the user to see how their battery was recovering after disarming by comparing to the stat "END BATTERY".
---
 src/main/interface/settings.c | 1 +
 src/main/io/osd.c             | 6 ++++++
 src/main/io/osd.h             | 1 +
 3 files changed, 8 insertions(+)

diff --git a/src/main/interface/settings.c b/src/main/interface/settings.c
index cafc278074..aedddf6572 100644
--- a/src/main/interface/settings.c
+++ b/src/main/interface/settings.c
@@ -856,6 +856,7 @@ const clivalue_t valueTable[] = {
     { "osd_stat_max_alt",           VAR_UINT8   | MASTER_VALUE | MODE_LOOKUP, .config.lookup = { TABLE_OFF_ON }, PG_OSD_CONFIG, offsetof(osdConfig_t, enabled_stats[OSD_STAT_MAX_ALTITUDE])},
     { "osd_stat_bbox",              VAR_UINT8   | MASTER_VALUE | MODE_LOOKUP, .config.lookup = { TABLE_OFF_ON }, PG_OSD_CONFIG, offsetof(osdConfig_t, enabled_stats[OSD_STAT_BLACKBOX])},
     { "osd_stat_endbatt",           VAR_UINT8   | MASTER_VALUE | MODE_LOOKUP, .config.lookup = { TABLE_OFF_ON }, PG_OSD_CONFIG, offsetof(osdConfig_t, enabled_stats[OSD_STAT_END_BATTERY])},
+    { "osd_stat_battery",           VAR_UINT8   | MASTER_VALUE | MODE_LOOKUP, .config.lookup = { TABLE_OFF_ON }, PG_OSD_CONFIG, offsetof(osdConfig_t, enabled_stats[OSD_STAT_BATTERY])},
     { "osd_stat_bb_no",             VAR_UINT8   | MASTER_VALUE | MODE_LOOKUP, .config.lookup = { TABLE_OFF_ON }, PG_OSD_CONFIG, offsetof(osdConfig_t, enabled_stats[OSD_STAT_BLACKBOX_NUMBER])},
     { "osd_stat_rtc_date_time",     VAR_UINT8   | MASTER_VALUE | MODE_LOOKUP, .config.lookup = { TABLE_OFF_ON }, PG_OSD_CONFIG, offsetof(osdConfig_t, enabled_stats[OSD_STAT_RTC_DATE_TIME])},
     { "osd_stat_tim_1",             VAR_UINT8   | MASTER_VALUE | MODE_LOOKUP, .config.lookup = { TABLE_OFF_ON }, PG_OSD_CONFIG, offsetof(osdConfig_t, enabled_stats[OSD_STAT_TIMER_1])},
diff --git a/src/main/io/osd.c b/src/main/io/osd.c
index d9ed8b6dc7..aa8127258d 100644
--- a/src/main/io/osd.c
+++ b/src/main/io/osd.c
@@ -885,6 +885,7 @@ void pgResetFn_osdConfig(osdConfig_t *osdConfig)
     osdConfig->enabled_stats[OSD_STAT_TIMER_1]         = false;
     osdConfig->enabled_stats[OSD_STAT_TIMER_2]         = true;
     osdConfig->enabled_stats[OSD_STAT_RTC_DATE_TIME]   = false;
+    osdConfig->enabled_stats[OSD_STAT_BATTERY]         = false;
 
     osdConfig->units = OSD_UNIT_METRIC;
 
@@ -1187,6 +1188,11 @@ static void osdShowStats(uint16_t endBatteryVoltage)
         osdDisplayStatisticLabel(top++, "END BATTERY", buff);
     }
 
+    if (osdConfig()->enabled_stats[OSD_STAT_BATTERY]) {
+        tfp_sprintf(buff, "%d.%1d%c", getBatteryVoltage() / 10, getBatteryVoltage() % 10, SYM_VOLT);
+        osdDisplayStatisticLabel(top++, "BATTERY", buff);
+    }
+
     if (osdConfig()->enabled_stats[OSD_STAT_MIN_RSSI]) {
         itoa(stats.min_rssi, buff, 10);
         strcat(buff, "%");
diff --git a/src/main/io/osd.h b/src/main/io/osd.h
index 2dd18130d4..8661602f9c 100644
--- a/src/main/io/osd.h
+++ b/src/main/io/osd.h
@@ -103,6 +103,7 @@ typedef enum {
     OSD_STAT_MAX_DISTANCE,
     OSD_STAT_BLACKBOX_NUMBER,
     OSD_STAT_RTC_DATE_TIME,
+    OSD_STAT_BATTERY,
     OSD_STAT_COUNT // MUST BE LAST
 } osd_stats_e;