-
Notifications
You must be signed in to change notification settings - Fork 66
/
BasicUsage.ino
76 lines (67 loc) · 2.69 KB
/
BasicUsage.ino
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
// Adafruit Watchdog Library Basic Usage Example
//
// Simple example of how to use the watchdog library.
//
// Author: Tony DiCola
#include <Adafruit_SleepyDog.h>
void setup() {
Serial.begin(115200);
while (!Serial)
delay(10);
// wait for Arduino Serial Monitor (native USB boards)
Serial.println("Adafruit Watchdog Library Demo!");
Serial.println();
// First a normal example of using the watchdog timer.
// Enable the watchdog by calling Watchdog.enable() as below.
// This will turn on the watchdog timer with a ~4 second timeout
// before reseting the Arduino. The estimated actual milliseconds
// before reset (in milliseconds) is returned.
// Make sure to reset the watchdog before the countdown expires or
// the Arduino will reset!
int countdownMS = Watchdog.enable(4000);
Serial.print("Enabled the watchdog with max countdown of ");
Serial.print(countdownMS, DEC);
Serial.println(" milliseconds!");
Serial.println();
// Now loop a few times and periodically reset the watchdog.
Serial.println("Looping ten times while resetting the watchdog...");
for (int i = 1; i <= 10; ++i) {
Serial.print("Loop #");
Serial.println(i, DEC);
delay(1000);
// Reset watchdog with every loop to make sure the sketch keeps running.
// If you comment out this call watch what happens in about 4 iterations!
Watchdog.reset();
}
Serial.println();
// can not disable NRF or RP2040 wdt once enabled
#if !defined(NRF52_SERIES) || !defined(ARDUINO_ARCH_RP2040)
// Disable the watchdog entirely by calling Watchdog.disable();
Watchdog.disable();
#endif
// Finally demonstrate the watchdog resetting by enabling it for a shorter
// period of time and waiting a long time without a reset. Notice you can
// pass a _maximum_ countdown time (in milliseconds) to the enable call.
// The library will try to use that value as the countdown, but it might
// pick a smaller value if the hardware doesn't support it. The actual
// countdown value will be returned so you can see what it is.
countdownMS = Watchdog.enable(4000);
Serial.print("Get ready, the watchdog will reset in ");
Serial.print(countdownMS, DEC);
Serial.println(" milliseconds!");
Serial.println();
#ifndef ARDUINO_ARCH_ESP8266
delay(countdownMS + 1000);
#else
// Calls to delay() and yield() feed the ESP8266's
// hardware and software watchdog timers, delayMicroseconds does not.
delayMicroseconds(countdownMS * 1000);
#endif
// Execution will never get here because the watchdog resets the Arduino!
}
void loop() {
// We'll never actually get to the loop because the watchdog will reset in
// the setup function.
Serial.println("You shouldn't see this message.");
delay(1000);
}