From: Jan "Yenya" Kasprzak <kas@fi.muni.cz>
Date: Sun, 21 Dec 2014 21:35:48 +0000 (+0100)
Subject: Detect unplugged load
X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?p=heater.git;a=commitdiff_plain;h=7ee3a6c8a3314e24c98f2fb8c3a91a443e178758

Detect unplugged load
---

diff --git a/firmware/main.c b/firmware/main.c
index 0d45ac9..d238fa8 100644
--- a/firmware/main.c
+++ b/firmware/main.c
@@ -390,8 +390,14 @@ static void status_led_next_pattern()
 
 	if (display_power_level) {
 		n_blinks = power_level + 1;
-		blink_on_time = 1;
-		blink_off_time = 2;
+		if (batt_on >> 8 == batt_off >> 8) { // load unplugged
+			n_blinks = 2 * n_blinks;
+			blink_on_time = 0;
+			blink_off_time = 0;
+		} else {
+			blink_on_time = 2;
+			blink_off_time = 2;
+		}
 	} else {
 		unsigned char b_level = battery_level();
 		if (b_level) {
@@ -404,11 +410,11 @@ static void status_led_next_pattern()
 		}
 
 		n_blinks = b_level + 1;
-		blink_on_time = 3;
+		blink_on_time = 4;
 		blink_off_time = 0;
 	}
 
-	blink_counter = 10;
+	blink_counter = 12;
 	display_power_level = !display_power_level;
 }