For the ESP8266 watchdog, can be very simple to use.
B4X:
#Region Project Attributes
#AutoFlushLogs: True
#CheckArrayBounds: True
#StackBufferSize: 300
#End Region
Sub Process_Globals
'These global variables will be declared once when the application starts.
'Public variables can be accessed from all modules.
Public Serial1 As Serial
Public wdt As ESP8266WatchDogTimer
Public tme1 As Timer
End Sub
Private Sub AppStart
Serial1.Initialize(115200)
Log("AppStart")
wdt.WDT_Enable(wdt.TME_250MS)
tme1.Initialize("tme1_Tick",150)
tme1.Enabled=True
End Sub
Private Sub tme1_Tick
wdt.WDT_Reset
End Sub