From 7a9dbb3b1fed9523b090ea1c483f622cc0b5eac6 Mon Sep 17 00:00:00 2001
From: Steffen Arntz <steffen.arntz@ucware.de>
Date: Thu, 5 Mar 2020 11:09:03 +0100
Subject: [PATCH] when the AXP192 is present, also display battery voltage and
 current.

this will give a good estimate on the current battery state.
---
 main/screen.ino | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/main/screen.ino b/main/screen.ino
index 9663689..5538895 100644
--- a/main/screen.ino
+++ b/main/screen.ino
@@ -39,8 +39,14 @@ void _screen_header() {
     display->setTextAlignment(TEXT_ALIGN_LEFT);
     display->drawString(0, 2, buffer);
 
-    // Datetime
-    gps_time(buffer, sizeof(buffer));
+    // Datetime (if the axp192 PMIC is present, alternate between powerstats and time)
+    if(axp192_found && millis()%8000 < 3000){
+        snprintf(buffer, sizeof(buffer), "%.1fV %.0fmA", axp.getBattVoltage()/1000, axp.getBattChargeCurrent() - axp.getBattDischargeCurrent());
+
+    } else {
+        gps_time(buffer, sizeof(buffer));
+    }
+    
     display->setTextAlignment(TEXT_ALIGN_CENTER);
     display->drawString(display->getWidth()/2, 2, buffer);