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Build a datalogger From a TTGO call

$30-250 USD

종료됨
게시됨 거의 3년 전

$30-250 USD

제출할때 지불됩니다
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. [login to view URL] 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...
프로젝트 ID: 29897799

프로젝트 정보

6 제안서
원격근무 프로젝트
활동 중 3년 전

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6 이 프로젝트에 프리랜서들의 평균 입찰은 $248 USD입니다.
사용자 아바타
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 IoT application. I have that board with to test applications as well. I have developed firmware which includes networks protocols i.e. http/s, mqtt/s, ftp etc. I have also developed firmware to integrate aws iot core using WiFi and also integrated mosquito mqtt using SIM800L module. Let' discuss about your complete requirement. Thanks.
$300 USD 7일에
5.0 (15 건의 리뷰)
5.1
5.1
사용자 아바타
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 schematics and PCBs regarding the projects, as I have done in many of my own projects I have worked with ESP32 and also with MQTT. It will be an easy and less time-consuming task for me. I can assure you that if you work with me once, you will always work with me on these kinds of projects. I will do whatever it takes to completely 100% deliver on this project and earn a 5-star rating from you as well. Also if you have any minor changes related to this task after completion, I will do it for free. Looking forward to working with you on this project. Awaiting your reply. Kind Regards, MPoonawala.
$250 USD 7일에
5.0 (4 건의 리뷰)
2.4
2.4
사용자 아바타
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
$250 USD 7일에
5.0 (1 건의 리뷰)
1.3
1.3
사용자 아바타
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 https://www.freelancer.com/u/etrinitytech We can use MQTT, make ESP32 in DEEP SLEEP while not in use. Make the device wake up on interrupts. We request you to discuss the project. Thanks & Regards, Gokul.
$250 USD 20일에
0.0 (0 건의 리뷰)
0.0
0.0

고객에 대한 정보

국기 (DENMARK)
kastrup, Denmark
5.0
2
결제 수단 확인
4월 16, 2021부터 회원입니다

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