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I flashed the latest integer version of the LUA nodeMCU firmware (nodemcu_integer_0.9.5_20150318).

The LUA program that runs on the chip measures every 15 minutes some things over the I2C bus and writes the results (18 Bytes) in a file. After about 40 cycles (10 hours) the system crashed if a dofile command is issued. The chip then draws a steady current of ca. 30 mA. There is no access over the serial interface possible. Only a power down/up brings the chip back to life.

I am clueless what to do. Any tips or hints?

Yes , you're right, but solving I do not know .

http://www.esp8266.com/viewtopic.php?p=12661#p12661

Moin,

are you able to speedup the crash by using e.g. a shorter timer period without changing too much in the code?
If possible create an example without using i2c then?
A reproducable example as small as possible would be helpful.
Have a console open on crash. Maybe you get a "wdt reset" (don't ask me what this means
If I get those only a reset does help.

Carsten

Hans174 wrote:I flashed the latest integer version of the LUA nodeMCU firmware (nodemcu_integer_0.9.5_20150318).

The LUA program that runs on the chip measures every 15 minutes some things over the I2C bus and writes the results (18 Bytes) in a file. After about 40 cycles (10 hours) the system crashed if a dofile command is issued. The chip then draws a steady current of ca. 30 mA. There is no access over the serial interface possible. Only a power down/up brings the chip back to life.

I am clueless what to do. Any tips or hints?

Here is short program init.lua for testing wake up from deep sleep. I am testing it with NodeMCU 0.9.5 build 20150318. It crashed about 1,5 hours after run.