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I am sure there isn't any significant bad contacts between the modules.
We don't need exact real time from RTC, there is wider margin of error for this but what can be done to minimize this. The ambient temperature in Nepal is fairly stable in all seasons.
About the humidity inside the box, it...
Thanks for the advice.
You hit the target. We had hang issues but we partially solved it using the software reset but now as you have mentioned above I am sure now we certainly need watchdog timer.
Most importantly of all we are ready for design changes if Arduino is not suitable this kind of...
Thanks for your feedback.
The pcb with all the components has been fairly stable in our testing period of 1 months. But still I'm not comfortable with my microcontroller(Arduino Mega 2560) and software burnt in it. As for the power supply we are using a buck converter which converts 24V dc from...
I would like to know if sim900A will be reliable for long run, since this module is going to be used for upcoming 30 projects for sending sensor data (current, voltage, temperature) to a ftp server and also it will be retrieving messages from other cellphones which will be used for setting...
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