Find Jobs
Hire Freelancers

ESP8266 project to get data from multiple ESP devices and post the JSON to online cloud server

₹1500-12500 INR

Completed
Posted over 1 year ago

₹1500-12500 INR

Paid on delivery
This project is based on ESP8285 microcontrollers and programming should be done in Visual Studio Code (PlatformIO) Background: This is supposed to be a monitoring system. It involves detecting sensor values at multiple locations (at least 25, with more to be added, on demand). Each sensor location is connected to an ESP8285 wifi board on UART1 (soft serial). All of the 25 individual wifi modules will connect to a central hub - which is another ESP8285 module. This central hub will be connected to a cloud server through a broadband router. It will send the data of all the 25 sensors to the cloud server. The cloud server will also reply back some data which needs to be transmitted back to the 25 sensor modules. Based on this data, the individual 25 sensors will perform some action, like setting a GPIO high or low. Tasks to be done: 1. All the 25 nodes should be starting their own Access Points, with SSIDs like "BSSUBMRL1", "BSSUBMRL2", "BSSUBMRL3".... passwords should be same as SSID. AP ahould be started in hidden form, so as not to crowd AP list in user domain. 2. The central hub should do following things every 30 min interval: a. Run a loop 25 times (no. of sensor nodes) and do next actions. b. The central hub will disconnect from the broadband router c. Central hub will connect to all the hotspots starting from 1. Eg. BSSUBMRL1. BSSUBMRL2... d. The connected hotspot will send its sensor value (float) and status (boolean) as a JSON message to the central hub (or any way you feel easy) e. The central hub will disconnect the hotspot node and connect to the broadband router again. f. Central hub will send the data collected for hotspot from previous step to the cloud server. g. Cloud server will send response element "BRCON" with value as 1 or 0. h. If value is 1, then disconnect broadband router again and connect to hotspot node. i. Set GPIO on nodal ESP HIGH k. Repeat for next BSSUBMRL... Any questions, feel free to ask
Project ID: 35844036

About the project

10 proposals
Remote project
Active 1 yr ago

Looking to make some money?

Benefits of bidding on Freelancer

Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
Awarded to:
User Avatar
Hi there, I am Ahmed an embedded systems developer, with a Master degree on EE. I have read your project requirements and I understand that you want to build a one master, multiple slaves network, using esp8285. I have aleady worked on a similar project, but we was using MQTT instead. I have a solid background in programming with python and C/C++, and I have worked on several prototyping project that are based on Arduino, esp boards and raspberry pi. contact me over chat with more details on your project. I hope to hear from you soon.
₹7,000 INR in 7 days
4.9 (11 reviews)
4.4
4.4
10 freelancers are bidding on average ₹18,950 INR for this job
User Avatar
I am a professional PCB design engineer i have expertise in PCB and circuit design for industrial level products. I can help you to reduce the cost of the board, dealing with industrial level-based PCB and circuit to make it cost effective and design improved is my daily routine. I have more than 4 years of experience as hardware design engineer. I am working as hardware design engineer in a reputed firm based in Germany, where my job is to analyze the working of electronic circuit and bring new improved design for our costumer. I understood the project description i can deliver your task as per your requirements at a reasonable budget. Your satisfaction will be my priority, you can trust on me. I am sure you will consider me for this task when you take a look to my portfolio. Looking forward to your earliest response. Best Regards Muhammad Adeel
₹7,000 INR in 7 days
4.9 (34 reviews)
5.3
5.3
User Avatar
I am professional embedded IoT engineer. I have experience with esp boards. I have read your requirement but need more clarification. And also i am sure i can do it. Drop me message to discuss more. Thank you .
₹20,000 INR in 14 days
5.0 (17 reviews)
4.5
4.5
User Avatar
I saw you need an electronic engineer specializing in embedded systems and IoT. But embedded systems may look complicated, when your prototype uses interfaces like UART, I2C, and SPI and communication through WiFi. I develop firmware for microcontrollers like STM32(ARM Cortex M), ESP32, ESP8266, and SoM(systems on modules) like Raspberry Pi in C/C++, Python, and MicroPython, which gives me the confidence I can help you. I am very interested in your project, and with the immediate availability to focus on it P.S. Shot me a message with timeslots you're available today and I can run you through it on a call together.
₹12,000 INR in 10 days
0.0 (0 reviews)
0.0
0.0
User Avatar
Hi I am a telecomunication engineer especializated in electronics. I have 5 years of experienced with C/C++ and also working with microcontrollers such as Esp32/Stm32/arduino etc. I think I can help you
₹6,000 INR in 7 days
0.0 (1 review)
0.0
0.0
User Avatar
Hi Greetings! I am available right now for the project discussion and can start the project on an immediate basis. I have understood your project requirement I have7++ experience in design and development. I can handle projects from small styling to full development from scratch. I will provide a good result in a short time and satisfy you fully. We have experienced developers in C Programming Electronics Microcontroller Arduino Internet of Things (IoT) WHY-ME: » Ready to Start as Immediate& Proper Testing. » Keep your Data & Website Secure: Daily Progress Updates. » You will get 30-days FREE BUG-SUPPORT even after Project-Completion Please give me in touch and let's discuss more detail about your task via chat. Project milestones will be decided during chat Thanks and Regards Monika Jain Black Grapes Softech
₹12,500 INR in 7 days
0.0 (0 reviews)
0.0
0.0
User Avatar
Hi there, I am from Kalyan. I know the Embedded Programming. I can complete your work. Also can give you support. i have worked on platform IO.
₹11,000 INR in 7 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of INDIA
Pune, India
0.0
0
Payment method verified
Member since Jan 24, 2023

Client Verification

Thanks! We’ve emailed you a link to claim your free credit.
Something went wrong while sending your email. Please try again.
Registered Users Total Jobs Posted
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2024 Freelancer Technology Pty Limited (ACN 142 189 759)
Loading preview
Permission granted for Geolocation.
Your login session has expired and you have been logged out. Please log in again.