SIMCOM SIM7600 Power
Here is how to make a SIMCOM 7600 module work on an Arduino board (Uno, Mega 2560, Leonardo, Due, Micro, Zero, Nano, Pico), ESP8266, ESP32, Raspberry Pi Pico, MicroPython, or any...
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Here is how to make a SIMCOM 7600 module work on an Arduino board (Uno, Mega 2560, Leonardo, Due, Micro, Zero, Nano, Pico), ESP8266, ESP32, Raspberry Pi Pico, MicroPython, or any...
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Here is how to make a SIMCOM 7600 module work on an Arduino board (Uno, Mega 2560, Leonardo, Due, Micro, Zero, Nano, Pico), ESP8266, ESP32, Raspberry Pi Pico, MicroPython, or any other microcontroller.
If your module accepts 5-10V, the short answer is the following diagram:
SIMCOM SIM7600 GSM/GRPS/GPS/Bluetooth Modules will consume a peak current of 2A when communicating with the network. Most probably, your power source can not provide that current. I had those problems using a power supply connected to my home electricity that technically provides 10A, do not despair.
The solution is to add a couple of supercapacitors before feeding the module. The SIMCOM module I am using is a SIM7600E-H1C. I tested with other SIM7600 modules with similar success.
WARNING: Before connecting any capacitor or supercapacitor, ensure the details of your ones. Every capacitor has a “polarity” and a working “voltage”. If you supply a higher voltage to your capacitor than what it is specified, it may “EXPLODE”.
For 2 equal capacitors the equations will look like: VT = VC1 + VC2 CT = (C1 * C2) / (C1 + C2) For 9V power supply: VT = 9V VT = VC1 + VC2 (where VC1=Q/C1 and VC2=Q/C2 and C1=C2 so Q/C=VC1=VC2=VC) VT = 2VC VC = VT / 2 VC = 9V / 2 VC = 4.5V = VC1 = VC2 VC1 = 4.5V and VC2 = 4.5V For 2 supercapacitors of 1.5F each with 9V power supply: CT = (C1 * C2) / (C1 + C2) CT = (1.5F * 1.5F) / (1.5F + 1.5F) CT = 2.25F / 3F CT = 0.75F
Now you can check on YELLOW the results from these equations:
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