The battery-powered mobile device is built on the ESP32 architecture.
The device wakes up every hour (deep sleep), receives data from the sensors, sends it via the GSM channel via the SIM800 module via the MQTT protocol to the server and goes back to sleep.
There is a sample code.
All sensors are connected via the i2c or 1-wire bus: ADC1115 (2 pcs.), BME280 (2 pcs.), DS18B20.
Basic requirements for the sketch:
1) Interaction of ESP32 and SIM800: GPRS connection, positioning by base stations.
2) Collecting data from sensors (about 10 pieces) and parsing them into JSON format.
3) Verification of sending data to the server and re-sending in case of communication failure (QoS).
4) Separation of sensors into two i2c buses.
5) Firmware update via OTA (MQTT).
Phased delivery of work is possible.
There is a sample of a working sketch, but without some features.
11 freelances font une offre moyenne de 160 $ pour ce travail
Hello, thank you for your job posting. I read your description about--Arduino I am a senior electrical engineer. I have plenty of experience in firmware development and micro-controller developments. I can write the fi Plus
This bid is for tasks 1-5 only (i.e. everything except the OTA protocol implementation). But firstly ... When do you need this work completed? Just to be 100% clear ... The SIM800 is connected to the ESP32 via UART, Plus
Hello Sir. I am a Mechatronics engineer and I have a lot of experience dealing with these things. I have made many similar projects using esp32 and gsm. I have the required hardware with me. I will definitely deliver y Plus
An easy proect to be done, Its me Imad, having tons of experience in IOT based on esp01, esp07, esp12e(node mcu), esp 32 and in making web and android apps.....u will get the best work done.............
Thanks for posting this project. I have experience working on all the mentioned technology and skills. I have experience developing firmware for - Raspberry - Sim800 - ESP32 - Arduino - ESP8266 etc I Plus
Hello, I have already developed some projects with ESP32 TTGO-T-Call (ESP32 board with SIM800L modem) and MQTT protocol. I would be very appreciated if you choose me for your project and, for this reason, I would lik Plus
Hi i am full expert in computer science and information security and i have completed my master in computer science kindly message me i will do this task properly according to your wish ..
I have developed atmega controller bootloader which can flash memory from eeprom(i2c) which is used for fota perpose, worked on nordic microcontrollers DFU mode, and i have worked on various projects which are having Plus
Hello, we have developed a similar architecture in the past using ESP32 & Sim800 module. Please see this demo video. [login to view URL] We will be able to it quickly and efficiently. Me &my team cover the enti Plus
Hey. I have implemented a system for collecting microclimate parameters as part of my student project. I know how to implement hibernation by sending data over GSM. I'm new to freelancing, so I set a minimum price.
Hi We have our own smart home automation system. we are especially working with smart switches, where we can able to control our home appliances using our smart phone, touch panel, Amazon Alexa and Google home. Experie Plus