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Create example code for ESP32-S3 (send and receive data via MQTT QoS 1)

€30-250 EUR

Completed
Posted over 1 year ago

€30-250 EUR

Paid on delivery
Initial situation: ESP32-S3-WROOM-1 is to send and receive data via MQTT QoS 1. WiFi: Entry of credentials in the web portal via initial access point (no hard coding of credentials) Protocoll: MQTT with "Quality of Service" 1 MQTT Broker: HiveMQ Data to be sent Publisher 1 (topic: /chip-id/stat/....) 1. temperature value e.g. 22.3°C 2. temperature setpoint e.g. 25°C 3. configuration parameter in piece e.g.: 1,0,-5,2,50,8 Data to be sent Publisher 2 (can be done via MQTT Explorer, topic: /chip-id/cmd/....) 1. temperature set point e.g. 24.0°C 2. configuration parameter in piece e.g.: 1,0,-5,2,23,7 If the Publisher 2 sends changed data, these are to be taken over from Publisher 1. MCU: ESP32-S3-WROOM-1 IDE: PlatformIO VS code Framework: Arduino/RTOS The freelancer should be familiar with ESP32, WiFi, MQTT, SSL/TLS and WebSocket. Knowledge in Home Assitant for later projects is an advantage.
Project ID: 35236147

About the project

9 proposals
Remote project
Active 2 yrs ago

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Hey I have worked with all the topics covered in here. I recently made a greenhouse controlled with esp32 that was sending humidity, temperature and VPD via secure MQTT (flespi broker), the message was packed in json and had retained flags for configuration values. It was implemented using FreeRTOS and in platformio with some configurations through platformio.ini. I feel pretty confident with this project and I believe I can deliver what is needed and more.
€230 EUR in 14 days
5.0 (1 review)
1.3
1.3
9 freelancers are bidding on average €170 EUR for this job
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Hi there, I have read your project description and i'm confident i can do this project for you perfectly.I still have a few questions. please leave a message on my chat so we can discuss the budget and deadline of the project. Thanks. .. .
€250 EUR in 5 days
4.8 (84 reviews)
7.6
7.6
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Hi, Greetings...! I am intereted to work on your project. I am experienced with ESP32 and Mqtt Protocol. Looking forward to working with you. Thank you Shivkant
€250 EUR in 7 days
5.0 (8 reviews)
4.3
4.3
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⭐⭐⭐⭐⭐I am senior Firmware & PCB Design,Java, C#,and C++ Developer ⭐⭐⭐⭐⭐ Hello I am Inigo H. I've seriously read your post and I have understood what you need. I am sure that I can be the best developer who can perfectly complete your project. I am a senior Firmware developer with 5+years of experience. I have rich experience in firmware development with ESP32 ,STM,ARDUINO,RSPBERRY and PIC,PLC,FPGA,etc. I also have rich experience GPRS, GPS, SMS, IoT I also have rich experience PCB Design. I have also rich experience C#,C++,QT,Java programming I have completed 20+ Projects over Freelancer with all 5 Star rating...without letting down a single Client....As Many Clients are still in touch based on my Working strategies and their satisfaction on their all previous Projects. I think it is necessary to discuss further over chat. Best Regards !
€140 EUR in 7 days
4.8 (3 reviews)
3.3
3.3
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Hi There....I will give you 25% Discount on my all services. Let’s get to the Project. Your Looking for a developer that expert in web node.js development. are you Looking for arduino Expert who write code for esp32 to send data and received As a MQTT According to your post description, you need the job done very quickly with an affordable budget. Your requirements are fully clear to me and I am applying only because I meet all the requirements that you are looking for. I have been working as a Embedded developer for more than 10 years and I know all the ins and outs of Embedded C + +development and customization Regards Hammyauen Naseer
€140 EUR in 7 days
5.0 (1 review)
2.6
2.6
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Hello. i am an electrial engineer and i have a great knowledge about the arduino and esp32 . i can do this prject for you but i like recomend you nodemcu instead of mqtt . thankyou
€140 EUR in 7 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of GERMANY
Bad Camberg, Germany
5.0
17
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Member since Apr 1, 2016

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