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Build a datalogger From a TTGO call

We are in need of a datalogger based on LILYGO® TTGO T-Call V1.4 ESP32

Main fictions is log of data from the 16 adcs (auto detect and only send data for active adcs) on the esp32 chip.

The data must be sent over mqtt to a server.

Log and upload interval (time between logs and amount of logs before upload happens must be remote changerable via mqtt, http read or alike)

The sensors we use are analog pressure and temperature sensors, they need 12v++ to run so there by we need to turn on a relay every time a log is performed.

Main point in this project is the ESP32 MUST be in "DEEP SLEEP MODE" most of the time, in order to save battery, GSM and alike can only be on, when its used.

The unit must also be able to wake up, and send alarm on a specific threshold set from the server.

Below is a simpler version of the same im asking for here, so most of the basis code can be taken from there.

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This project is only the start, this project will be in development for a long time, and will be in need of future upgrades, so if you do this well, you will get more work from us in the future...

Compétences : Microcontrôleur, Programmation C, Génie Électrique, Arduino, MQTT

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Concernant l'employeur :
( 1 commentaire ) Aulum, Denmark

Nº du projet : #29897799

6 freelances font une offre moyenne de 248 $ pour ce travail

jitendracf

Hi, I have more than 9 years of experience in embedded design and development. I have expertise in firmware development and PCB design for different applications. I have already worked on TTGo TCall V1.3 board for an I Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 7 jours
(15 Commentaires)
5.1
(1 Évaluation)
2.9
mpoonawala1

Dear Sir, I have experience in providing complete embedded solutions for 3years. I am skilled in programming microcontrollers like Renesas, Texas Instruments, PIC, Arduino, Espressif, and many more. I can design schema Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 7 jours
(4 Commentaires)
2.4
BobbITA

Hello, I have read the job description and taken a look at the link. I can confirm I have the ESP32 TTGO SIM800L and I have developed some project with GPRS and MQTT. If you want we can chat to discuss further. Bye

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 7 jours
(1 Évaluation)
1.3
maqsudbd

Hi! I can do your project. I did several data logging projects using ESP32/8266 using MQTT. Just curios to know how ESP32 will measure ADC values or get configuration data from web page if it is in deep sleep mode mo Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 30 jours
(0 Commentaires)
0.0
etrinitytech

Greetings to You, Thank you for the opportunity to BID. We have created a similar Data Logger. If you can ping us, i will share the video link. Please go through our profile which demonstrates our capablities http Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 20 jours
(0 Commentaires)
0.0