I am glad to find you as a professional client here, I hope my assumptions are right and we'll have a wonderful experience together. Here is my introduction.
I'm a professional electrical engineer with high expertise in "hardware-interacting mobile apps", and
1- Circuit Design (Electrical, Electronics, DC/DC converters, DC/AC inverters etc.)
2- PV-system design (both grid connected and off-grid systems)
3- Software simulation (Matlab, Proteus, Orcad, Logisim)
4- PCB tools (Proteus, Eagle, Altium, etc.)
5- Microcontrollers and modules (PIC/ATMEL, Arduino boards, Raspberry Pi, Zigbee, bluetooth/wifi modules, GSM modules).
6- Programming languages (C/C++, Java, Objective-C, Swift)
7- Professional report writing (charge $10/100 words)
EXTRAS:
1- Regular updates regarding the progress.
2- Constant communication
3- 110% satisfaction guarantee
In fact you will love to work with me that all your future projects will come to me. Just try me, and have the wonderful experience.
Regards.
Faraz Ahmad