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ACM: prevent link flood with "Low Battery" warnings

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thanks to Marco for noticing this
This commit is contained in:
Andrew Tridgell 2012-06-05 11:31:40 +10:00
parent 9ef4595ad3
commit af1573ad30
1 changed files with 9 additions and 1 deletions
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10
ArduCopter/events.pde
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@ -59,7 +59,15 @@ static void failsafe_off_event()
static void low_battery_event(void)
{
gcs_send_text_P(SEVERITY_HIGH,PSTR("Low Battery!"));
static uint32_t last_low_battery_message;
uint32_t tnow = millis();
if (((uint32_t)(tnow - last_low_battery_message)) > 5000) {
// only send this message at 5s intervals at most or we may
// flood the link
gcs_send_text_P(SEVERITY_LOW,PSTR("Low Battery!"));
last_low_battery_message = tnow;
}
low_batt = true;
// if we are in Auto mode, come home