EmbeddedAT with SIM800

How to run my own code in sim800 without an extra MCU? Any tools like IDE or emulators for this? Please suggest me. I have SIM800 module.

I dont have much information about his. But SIMCOM doesnt support or help to do this as they feel the Embedded AT makes their module unstable as users code might interfere with module operation.

Check this link, Controlling GPIOs using AT commands: https://www.elecrow.com/wiki/index.php?title=SIM808_GPRS/GSM%2BGPS_Shield_v1.0#Using_AT_Commands_to_Control_GPIO_and_PWM_pins

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