OKY3338 is a 32-bit microcontroller from OKYSTAR. It is the flagship product of the company’s OKY series, and specifically designed for embedded control and monitoring applications in industrial automation, intelligent lighting, medical, security, and consumer electronics. The OKY3338 is powered by a 32-bit ARM7TDMI-S core and can support up to 256 KB flash memory, 42 KB RAM and 36 GPIO pins. It comes with an integrated 10/100 Ethernet controller, CAN transceiver, and various types of peripheral interfaces, including SPI, UART, and dual I2C. It also supports advanced functions such as USB device, LCD, DMA, and PWM.