4x4 matrix pin pad

hi I am an expert electronics engineer with more than 8 years of experience in this field. Please have a look at my profile I assure you quality work and on time delivery I am waiting for your reply to start Regards

Hi, I am a post graduate power electronics engineer and having very good industrial experience of 8+ years in R&D and project development. I am excellent welding power supplies design, high frequency transformers design, circuits design, multi-channel LED Drivers, Regulated power supplies design with universal input to DC output, Audio amplifier, drives design, Filters design for harmonic analysis and Power factor correction, SMPS, LED drivers, DC-DC, AC-DC converters design, PFC interleaved boost converter, Battery management system, Battery chargers, UPS design, sine wave Inverters, solar grid tie inverters, Solar battery chargers and street light systems design from few watts to KW range using Buck, Boost, and Buck –boost, Interleaved boost/buck, Fly back Push Pull and H-bridge inverters. I have very good experience to design high voltage power supplies up to 50KV for capacitor charging power supplies using soft switching topologies. I have work experience to design from few watts to KW range meeting all compliances like EMI/EMC and safety standards UL etc.

Hello dear I have experience in designing electronics circuits and can make your project. I will make your project practically on breadboard and will provide you circuit, code and PCB design along with gerber files. I will design your project using extra cheap and reliable components that will be beneficial for you if you are planning to make a commercial product.I also have experience in bluetooth modules and android apps development. I can also develop android app for you that will be able to control your project and you will be able to monitor your data. If you wish we can discuss in chat.

hi there, can you please be more specific about the functionality of the whole device, or if you have a reference device which you plan to clone? I need to know what protocol the data needs to be sent over the USB. also, what is the need for the onboard battery. Also do you expect the buttons to protrude over the 1.35mm limit? thank-you

Hi, Can you please share your project requirements/task expected from us. About us: Micro-controllers we have worked on PIC, STM32, PSOC and AVR. Development kits and instruments available for testing purpose. For PCB designs we use KICAD. C#, LABVIEW, Python for GUI, Controlling or Datalogging purpose. Thanks and Regards, Santosh

Hi, I’m fast and creative with high quality work, i have more than 15 year experience as a packaging designer. Try us for a great packaging design experience. Check out our portfolio. https://www.freelancer.in/u/graphidesginer.html Handover files submit in AI (vector), EPS, PSD, PNG, PDF & JPG. Check out our portfolio here. Thanks!

Hello, We are a team of embedded hardware and software professionals with experience in circuit design, schematic entry and PCB layout. We do complete product design, development and manufacture. Would like to know more about the project. Looking forward to work on this project. Please feel free to contact us for any further discussions. Thanks and Regards Techoviz