From 40d34dbd9cb96823e5fc645d9743469088459a55 Mon Sep 17 00:00:00 2001
From: Eric Duminil <eric.duminil@gmail.com>
Date: Tue, 20 Apr 2021 12:03:09 +0200
Subject: [PATCH] Only set time when NTP didn't run
---
ampel-firmware/util.cpp | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/ampel-firmware/util.cpp b/ampel-firmware/util.cpp
index cc2967b..e486033 100644
--- a/ampel-firmware/util.cpp
+++ b/ampel-firmware/util.cpp
@@ -32,13 +32,14 @@ String macToID() {
namespace ntp {
WiFiUDP ntpUDP;
NTPClient timeClient(ntpUDP, config::ntp_server, config::utc_offset_in_seconds, 60000UL);
+ bool connected_at_least_once = false;
void initialize() {
timeClient.begin();
}
void update() {
- timeClient.update();
+ connected_at_least_once |= timeClient.update();
}
void getLocalTime(char *timestamp) {
@@ -50,6 +51,9 @@ namespace ntp {
timeClient.getFormattedDate(time);
Serial.print(F("Current time : "));
Serial.println(time);
+ if (connected_at_least_once) {
+ Serial.println(F("NTP update already happened. Not changing anything."));
+ }
Serial.print(F("Setting UNIX time to : "));
Serial.println(unix_seconds);
timeClient.setEpochTime(unix_seconds - seconds());
--
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