Firmware update OTA by GPRS.

Hello, My name is Andrei, i am a Romanian IOT Developer with a lot of experience in IOT projects and automatics . I have done the GPRS ota upload on an arduino with GPRS , is not a simple task but is doable, the idea is you to know the ip of the equipment , do you have it on a MQTT server ? I can work with all types of Microcontroles programming in C , C++ , Mikro C , CCS C , Atmel Studio , Arduino , gcc . Creating Schematics and PCB in Kicad , Eagle , EasyEDA and Proteus (+simulation). i have an workshop full of parts and the infrastructure to build PCB and test the solution end to end using special tools (Spectrum analyzers , oscilloscope , logic analyzers ) Derivable on the project : Wiring diagram for prof of concept . MCU code explained every line . Regards, Andrei

hello sir i am done similar task with my handheld billing machine. i have used stm32f4 microcontroller with on board SPI flash for firmware storage and SIM800L for GPRS connectivity. I can do your job. I have all the components/kits/module needed for this task. please reply so that we can discuss on it. thankx

Hello I'm an embedded software engineer and I would like to hear about your project requirements to estimate how much effort is needed to complete the job. so I can adjust my bid to job complexity. Best regards