The “IOT data-logger” Project
IOT Data-logger for HVAC-R, based on open source platforms.
-The total cost of the data-logger should not exceed 9usd.
We need a solution based on SOC esp32 (or esp8266) and NodeMcu firmware (LUA).
-The data-logger should have data storage memory in the absence of available network and backup battery.
-Scalability and acceptance of different types of additional sensors (DS18B20 sensor, door sensor, RH, pressure etc)
-Up to 8 sensors/data-logger (for the esp8266 multiplexing is needed as it has only one analog input).
-The firmware (or at least sample rate and other settings) should be updated remotely via internet.
-M2M communication should be based on an open source MQTT Broker like Mosquito
-Connection with Amazon server (AWS)
After this first phase we will need help for:
Web page and APP development
-"WEB to SMS" with HTTP API
-Online management interface with triple access level: end user, technician, supervisor.
-End user should see, search, print and export data
-Easy changeable settings for data-logging from UI.
-Supervisor should set upper and lower limits per client for sample rate / data sending, open close accounts etc.
-notification (alert) using SMS under regulated conditions
-push notification via APP on android/iphone
-maybe a solution based on OpenHAB with custom front-end and back-end.
Turn key solution is welcomed, but we need to know fixed price for every part of solution pcb design, firmware, webpage, app
Budget refers to first phase only (PCB design and firmware)
15 freelancers are bidding on average €1180 for this job
Hello, Have a great day. We are a startup company offering services in product development. We will ship you fully working prototype. Please feel free to contact us. Best Regards, Shahbaz.
Hello, look my profile. There are pictures of project in progress with esp32. We are professional team from Bulgaria. We are one of the first that use esp32 in our projects.
Hello. I have 3 year expirience with microcontroller and more then 2 with ep8266 dev. alredy have few project that used thi module, MQTT and other. I think I can do it better then any other.