A9G and HX711 (SMS,TCP/IP, GPS,Weight,temp,humidity,low power) Firmware and PCB -- 2

!!!The applicants shall have the A9G, HX711, BMP280 and the load cell!!!


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The system shall get the weight/temp/GPS/battery voltage and sent it to a server(via JSON) and via a SMS.

The A9G shall read the first number saved on the SIM card and used it to send the SMS to it and accept the SMS commands from it.

Parse received SMSs from the number.

EG. SMS: "01 [login to view URL]"


01 --> [login to view URL] = set the json link where to send the data

02 --> 004321012345 = set a second number to send the SMS

03 --> 21:01 = set the hour and minute to automatically send the SMS

04 --> all = get weight/temp/humidity/GPS/battery data and send it

05 --> 1 = get GPS location and send it

06 --> 2 = get weight data and send it

07 --> "APN" "Password" = internet connection details -> may be more than those

99 --> [login to view URL] = set the default configuration(JSON link and remove the second phone number)

The system shall stay in low power until a SMS its received or until the set hour its hit( eg. 21.01).

For the web part -> dummy website(isn't needed a frontend just the lite backend)

The received data via the JSON api will be saved into a database.

JSON content shall include the phone number and all the data from the sensors/GPS.

The push button will act as an interrupt for the A9G → if the A9G its in low power the push button will woke it up.

The display shall show the weight when the push button its hold ON more than 5 seconds.

The display shall go to sleep/turn off after 30 seconds.

The display shall not drain the battery when its not used.

The PCB will have placeholders for all the modules on it(A9G, hx711, BMP280/BME280, power supply, connectors).

The power supply shall have a voltage range from 5v to 16V → for the time being the 6v and 12v lead acid will be used.

For the HW part, the freelancer will provide the project and all the files needed for the build, inclusively to name all the tools and versions used.

|For the SW part, the freelance will provide the code sources and a document with all the tools used to write the code/compiler and flash the board.

The freelancer will assume the deadline mentioned by himself in the proposal.

Compétences : PHP, Programmation C, Logiciels Embarqués, MySQL, PCB Design and Layout

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Concernant l'employeur :
( 1 commentaire ) Timisoara, Romania

Nº du projet : #30976087

12 freelances font une offre moyenne de 592 $ pour ce travail

(63 Commentaires)

hi. I have 8+ years of experience in building IoT/embedded systems. I have worked with all of the modules you mentioned (load cell, HX711, GSM modules for SMS, GPS etc) . I can show you my working demos. let's discuss Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 15 jours
(56 Commentaires)

Best PCB Design Expert at your doorstep! Dear Client, We can design PCB with voltage range 5v to 16V, all Modules (A9G, hx711, BMP280/BME280), Power Supply, using12v lead acid for you as per your requirements. We hav Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 2 jours
(5 Commentaires)

Hi, sir. Thank you for sharing your project A9G and HX711 (SMS,TCP/IP, GPS,Weight,temp,humidity,low power) Firmware and PCB -- 2, and I will be very happy to help you with your business. Let me share you with my expert Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 6 jours
(5 Commentaires)

Salut, Am deja toate componentele asadar pot sa dezvolt acest proiect pentru tine. Pentru mai multe detalii te rog contacteaza-ma pe chat. Multumesc!

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 30 jours
(2 Commentaires)

Hello dear project owner I am an Electronic engineer with experience in embedded systems designing and PCB designing i have mentioned components and can make it in minimum time. Please chat to discuss.

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 6 jours
(5 Commentaires)

Hi, I have 3 years working experience in Embedded System on many microcontrollers from famous companies such as STM, Texas Instrument, Arduino, ESP32 and Raspberry. My daily task is develop protocol communication betwe Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 3 jours
(2 Commentaires)

I have ESP, I have GPS, rest I dont have. I can buy it, it take 2 day max to ship. I can complete your project in 3-4 day. Please find my portfolio here: [login to view URL] Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 5 jours
(1 Évaluation)

Hello, I am interested in your project and I hope to help you realize it, I am passionate about electronics and embedded development and I hope to share with you my knowledge and experience. I can do this work in 7 da Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 7 jours
(0 Commentaires)

FREE OF COST CONSULTATION Dear Client, I can design PCB with all the modules, Power supply, Connectors, A9G, hx711, BMP280/BME280 in a quality and timely manner. I have huge experience in PCB Design so I will able to Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 2 jours
(0 Commentaires)

Dear sir, We go through your requirement. We work on similar project for humidity and temperature sensor for agriculture industries. We will develop your product as per your requirement. Awaiting for your requirement

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 14 jours
(0 Commentaires)

Hey, I have checked your requirement and understand that as well. I have done SIMILAR work past. Do you want to see the DEMO WORK??? Will show you Thanks.

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 7 jours
(0 Commentaires)