Sim800l is not responding anymore after few days of continuously working and requires restart. It won’t recover by itself or respond to any commands unless a restart or power off is made.
Restarting the Arduino does not help. If i restart only the Arduino, the module won’t initialise. If i restart the sim800l it will work for another few days.
Same behaviour on two different sim800l modules.
The module is powered by a 5v power supply, +2 electronic capacitors placed next to it. Logic levels are 3.3v and the vdd pin is connected to 3.3 v as well.its the blue version of the module.
115200 baud rate is set.
I’m currently modifying my configuration so i can reset the module using the mcu when it stops responding.
Don’t think that the high temperature is the problem as the mcu is working in my car and is really cold outside. Can it be the low ambiental temp? Min 1deg, low humidity.
Is someone else experiencing the same behaviour? Should I power the module after the diode using the proper voltage? Some more capacitors as close as possible to the chip?