Hi,
I have read your project requirements. I am familiar with your required technologies and I have expertise resources to start with your project.
I have 3+ years of experience in design and development of embedded software as well as hardware development, I have expertise in Embedded Design, C, ARM, raspberry pi,stm32,stm8, PCB layout, circuit designs, etc.
I am an expert in having rich experience in BLE programming.
I hope to work with you on this project.
I'll try my best to help you finish it.