Modify or recreate and program or re-program accordingly an existing Sim900 board that is part of an existing alarm
$30-350 USD
Dibayar saat pengiriman
Please bid only if you are expert in the required skills.
Already existing alarm system, with a main board and an attached 2nd board based on sim900 needs reprogramming of 2 ics or replacing, modification, and generally all corrections ion in respect of the SIM900 operation to make it work add more features and commands of sim900.
The bidder must re-program an IC on u1 in the main board and another one IC on the sim board and ensure that all parts of the alarm in respect of SIM900 works perfectly.
If its required the ICs could be replaced with another of the same mcu ic. Programming or Re-programmed with new firmware as per our needs is essential and required.
Replacement of existing MCU and other parts is welcome upon suggestion as long as the alarm will work correctly in the end.
The bidder can even provide a whole new designed PCBA sim900 instead of modifying the one provided as long as it’s of the same size and pins as the one provided so can be plugged into the main board and the alarm as a whole unit will work as per our requirements.
Bidder has to provide that solutions and make the existing or a new similar device working with more features via AT commands as per my requirements. Schematics and BOM of the PCBA/gsm900 part must be provided and also gerber files (not for the whole alarm but for the sim900 PCBA part and its connection with the main board).
More details will be discussed personally.
ID Proyek: #10109267
Tentang proyek
14 freelancer rata-rata menawar $595 untuk pekerjaan ini
Hi Sir I am an expert electrical engineer with almost 7 years of experience in this field. I can do it for you the price quoted is just for reference I would like to discuss the details with you before I can give you Lebih banyak
Hello dear I have worked on GSM modules and can make your project, I will make your project practically on breadboard and will provide you circuit, code and PCB along with other details, I can also assemble a PCB and Lebih banyak
Hello, I would like to be considered for your project. I have extensive experience of embedded systems development. I have designed circuits for SIM900, SIM908, and SIM808 modules. please have a look at my profile. I Lebih banyak
*Rich experience in the Design and Development of projects with microcontrollers on Arduino, PIC, etc *I have worked with different communication protocols and many types of interfacing sensor modules. -*Schematics and Lebih banyak
Rich Experience of 9.5 Years in GSM/GPRS communications using AT commands on SIMCOM modems. Wrote application software in C,Python. Can do the job in committed time.
Kalispera apo Athina Mporo na analavo plhrvw ton sxediasm;o - anasxediasm;o pou zitate, kai na pasadoso Gerber, NC Drill & BOM gia paragogi plaketon kai montarismatos. Pliforofories sto eksi ennia ennia epta epta Lebih banyak
Design of new PCB with SIM900 and NXP MCU. Have prior experience with SIM900. Please describe functionality of the board.
Hi I have a very good experiance in SIM900 module, work almost 5 projects on this module, and i have test all AT commands of this SIM900 module, I can handle this project as per your requirement Looking forward t Lebih banyak
