Sim card communication device

Hi, please check [login to view URL] and [login to view URL]

This flexible pcb design has been used to provide dual sim capability to phones.

I assume that it is basically filtering sim card and phone communication and when it is catching #11 or #22 input, it does the switch from sim 1 to sim 2.

I need to filter something else between phone and sim card, I will explain it over chat, if you think that you can do similar pcb and embedded software please contact me. Thanks.

Skills: Circuit Design, Electrical Engineering, Electronics, Microcontroller, PCB Layout

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About the Employer:
( 0 reviews ) İstanbul, Turkey

Project ID: #19769636

11 freelancers are bidding on average $1322 for this job


Hi,client. I have 15+ years experience in a circuit, PCB design, manufacture and assemble, and firmware coding. I had developed many products ago using various microcontroller including STM32 serial, Arduino, Raspber More

$1500 USD in 7 days
(46 Reviews)

Thanks for sharing your project. As I'm a Senior Embedded System engineer, I have rich experiences in many embedded systems development, IOT(Internet of Things), and home automation programming over 8+ years. More

$1250 USD in 7 days
(24 Reviews)

Hello, I am an electrical engineer and expert in PCB design using Altium Designer. I have been using Altium Designer for 7 years, with which I have completed tons of PCB projects as below.. [login to view URL]!Aok2Eb2A More

$1125 USD in 15 days
(18 Reviews)

I am Excellent at the following:  Embedded C Programming.  VHDL/Verilog  Microcontroller like Arduino,RaspberryPi,FPGA, AVR, PIC and STM32.  IDEs like Keil MDK V5, ATmel studio and MPLab XC8.  IOT Technolog More

$1250 USD in 20 days
(23 Reviews)

Hello my name is Maria, I would like to work in this project, I’m an engineer with plenty of experience working with Circuit Design, Electrical Engineering, Electronics, Microcontroller, PCB Layout, I have made many PC More

$1250 USD in 20 days
(9 Reviews)

Hi. please send soem details about your requirements. may be a document. lets see if we can work with each other! Thanks!

$1666 USD in 20 days
(3 Reviews)

Hello! I am very interested in your post project. i have rich experience on it. I think this project is very suitable for me and i am sure i can give you good result . I can help you if you'd like looking forwar More

$1250 USD in 20 days
(2 Reviews)

Hi, I have inspected your project and some ideas about how to do it. We can discuss the details in chat.

$750 USD in 21 days
(1 Review)

Hello, i hope you will be doing good. i believe i can be useful for your project as i have worked on similar project such as ( GSM based drone, semi automatic mine detector using micro controller, smart Grid, robotic More

$1500 USD in 7 days
(0 Reviews)

Hi, My name is Jithin, I am a Hardware Design Engineer from India. I have more than 12 years of experience designing electronic products and have completed my Bachelors in 'Electronics and Communication Engineering' More

$1500 USD in 20 days
(0 Reviews)

Hi, nice to meet you. I checked your project description in detail. I am just a man who can deliver your project exactly. You can see my skills and certificates from my profile. Let's have a discussion in more detail t More

$1500 USD in 7 days
(0 Reviews)