GPRS MQTT gateway with OTA feature for target stm32

Need to design firmware to build MQTT gateway with following details

[login to view URL] for STM32 + sim800 + SPI flash memory

2. Gateway need to publish data received on uart of STM32 gate way from mother board

3. Gateway need to subscribe topic and when data recieved send that data to mother board via uart

4. Gateway need to check atleast once/twice a day for new firmware available on server.

5. If new file available then ask server to send that .bin or hex file and store it to SPI flash. If correct file received then reprogram mother board SMT32 using bootloader pin and uart.

Compétences : Microcontrôleur, Electronique, Arduino, Logiciels Embarqués, Programmation C

Concernant l'employeur :
( 0 commentaires ) Vadodara, India

Nº du projet : #21262034

8 freelance font une offre moyenne de ₹42361 pour ce travail


Hi, I'm an embedded software engineer with lots of experience with STM32s. I understand you'd like to build an STM32 gateway between your motherboard and a web MQTT broker, with OTA support as well, all over GSM. I can Plus

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(21 Commentaires)

Hello, Deep is here. I have experience with STM32 series MCUs, SIM800 hardware as well as Firmware development. I have experience with MQTT, OTA. I can help you for this development.

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(20 Commentaires)

Hi i am embedded system engineer. i have a few experience with GSM module like SIM800 and a few other like sim900, 5320a or IoT-GA6. i have ever develop firmware update for stm32. i develop custom bootloader so no nee Plus

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(1 Évaluation)

I am an Embedded System Developer with an expertise in IOT. I have built firmware for Esp, Arduinos and STM board over parts and I can develop a customized one for you. I also build MQTT cloud servers and can build one Plus

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(2 Commentaires)

Hi we have a almost prototype ready to which will have ability to full fill your requirement by making some changes in it We are also having Expertise in following domains 1. Embedded. 2. Electronic & Electric Plus

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hello I am embedded system developer. I have developed project with mqtt server. I have developed OTA in stm32 and using quectel mc66. I have ota with openCpu.

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I am interested to work on this project as I have already experience on GPS, GSM products. I have worked on quectel, Simcom GPRS chips.

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I have worked as developer embedded system with microcontroller such as DSP, FPGA/CPLD, PIC, PLC and so on. In there years, I have experiences about electronics engineering, power converter, communication such as SCI, Plus

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