I will build custom pcb circuit, write firmware design schematic easyeda altium kicad

I'm Julius with 11 years of experience in PCB design, prototyping, and firmware development for IoT applications, robotics, and embedded systems... in addition to being a team leader for many startup projects.

1. WORK EXPERIENCE

- Multi-layer PCB design experience with:

Microprocessor: ARM Cortex-M3, Cortex-M4,

. Low-power chip: Nordic nRF52840, nRF5340, nRF52832, ESP32, STM32WL series

SoM, custom board design for: CM4, Rasp, Orange Pi, iMX8, Jetson Nano/Xavier/Orin, RK3588, RK3568, RV1126 Rockchip, TI AM6254 ,...

High-speed: USB 2.0, HDMI 2.0, DDR3/DDR4, PCIe, NAND Flash, Ethernet 10/100/1000base-T1, PoE++, etc.

Power supply: DC-DC (isolated, Flyback, Boost, Buck, LDOs).

Communication circuit with motor driver: BLDC, AC servo, DC servovia I/O, ADC and CAN.

Analog signal processing circuit: ADC, DAC, Audio.

Protocol/communication:

o QSPI, I2C, RS485, RS232, CAN, Modbus TCP/IP, RTU, etc.

o Wireless, IoT: RF, Wifi, Bluetooth 4.0, GSM (3G, 4G/LTE), LoraWAN...

- Experience in building evaluation kits such as Arduino, ESP32, ESP8266, STM32...

- Combine dimensional drawings on paper and actual PCBs to be performed into Gerber format with very high similarity.

- BOM creation