Hello, I encountered a problem while connecting the circuit. Problems appear when I start it. I tried a lot, but I did not find a solution to the problem with the diagram. Can I seek help from your expertise, because I am very tired trying to find a defect?
I uploaded it to Google Drive in order for all connection information and voltages to appear
I moved your topic to an appropriate forum category @taif_iraqi.
In the future, please take some time to pick the forum category that best suits the subject of your topic. There is an "About the _____ category" topic at the top of each category that explains its purpose.
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Thanks in advance for your cooperation.
Which controller is that?
What is the problem?
What is the "plotter problem" and what has to do plotter with a gsm modem?
thx my dear ^.^
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A problem lies in the GND SIM808. When I take it from the Arduino Nano, the BMS piece does not work. The controller stops working. I want a solution to this problem. I do not know where the error is in the connection and whether the circuit connection is correct.
A problem lies in the GND SIM808. When I take it from the Arduino Nano, the BMS piece does not work. The controller stops working. I want a solution to this problem. I do not know where the error is in the connection and whether the circuit connection is correct
^^
Your battery connection looks incorrect for me. The "IN -" wire of your DC 5v converter is connected to "B1" terminal of the BMS - the same point as "plus" of the SIM800 module
The correct scheme should be:
You should connect the "IN -" of the DC 5v converter to the "B -" terminal of the BMS module rather than to "B1".
When adding gnd, which is in red (here), the sim808 stops working. The arduino nano also stops working, but when gnd is removed, it stops working. And I want gnd to work and send location gps without gnd (here) it will not work at all.
Again - you have a error in the schematic. The GND of arduino and VCC of Sim800 are connected to the same point, so when you connect Arduino to Sim800, the result is a short circuit and nothing works.
Can you help me with the plan in a way that this problem does not occur, even if you make me a new plan, please, if possible, because I am very tired and I am looking for some solution.
I drew you what needs to be corrected in the diagram in post #8
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