Add GSM Command to Update Mobile Number in Existing Firmware (ATmega1284P + SIM800C)

Posted on | November 25, 2025 | Comments Off on Add GSM Command to Update Mobile Number in Existing Firmware (ATmega1284P + SIM800C)

We have a device that uses an ATmega1284P microcontroller along with a SIM800C GSM module. In the current firmware, the mobile number is used for sending data. We need to add a more GSM-based command… (Budget: $10 – $40 USD, Jobs: C Programming, Embedded Systems)