Hi,
I have more than 8 years of experience in embedded design and development. I have designed no of IoT products based on WiFi, BLE, RF, GSMGPRS/LTE, GPS, ZigBee, Various sensors etc. I have expertise in pcb designing upto six layers using different cad tools.
I have already designed a GPS tracker using STM32F103, MC60E, Nano Sim Card, Accelerometer, LiPo battery with charging circuit, Micro USB for charging etc. I can share Pcb pics with you.
Thanks.
Jitendra