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function update_time()
-- Update time
-- note that rtctime.get() provided updates only if time was set at least once
-- either with rtctime.set() or with sntp.sync() which sets it internally
sec, usec = rtctime.get()
local usingUptime=false;
if ( sec <= 0) then
sec = tmr.time(); -- uptime
usingUptime = true;
else
sec = sec + uts_offset;
end
tm = rtctime.epoch2cal(sec)
-- print(string.format("%04d/%02d/%02d %02d:%02d:%02d", tm["year"], tm["mon"], tm["day"], tm["hour"], tm["min"], tm["sec"]))
if ( usingUptime ) then
local days = math.floor(sec/86400)
dstr = string.format("up %03d days", days)
else
dstr = string.format("%04d/%02d/%02d", tm["year"], tm["mon"], tm["day"])
end
tstr = string.format("%02d:%02d:%02d", tm["hour"], tm["min"], tm["sec"])
time_tmr:start()
end
-- set up timer for time update
time_tmr=tmr.create()
time_tmr:register(time_update_interval, tmr.ALARM_SEMI, function() update_time() end)
print("--- Starting Time Updates ---")
time_tmr:start()
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