Thank you visit my profile page.
My main skill is embedded engineering and PCB design and web front-end developer..
I have 10+ years experience in designing embedded system,webservice.
Technical area :
PCB Design: Altium Desinger, Eagle, Orcad..etc.
ARM : Cortex-A Series arm chips such as V3s, S3, A33, A20.
Exynos 4412, 4418, RK3399, RK1108 and so on.
Embedded Linux Kernel, Drivers, File System
MicroChips : ARM Cortex-M, ARM9 chips such as STM32, STM8
ATMEL, PIC, 8051 microchips programming
WIFI and Bluetooth : ESP32, ESP8266, nRF52832, nRF840, CC2541
Embedded Communication : UART, SPI, I2C, CAN and so on.
USB Drivers : USB-CDC, USB-MSD, USB-WIFI and so on
IoT Development : Smart Switch, Smart Lock
PCB : High speed signal wiring, Electrical Power Wiring and so on.
Xianghu is very versatile and was able to help us with our project effectively. He was able to develop or fix the firmware for the following:
1) OV5640 camera for Allwinner A64 processor
2) GT911 based touch panel for Allwinner A64 processor
3) A light sensor for an STM32 family processor
4) A camera ON led indicator for the STM32 processor