The NF-M667G with Optical Sensors RoHS is a CMOS type programmable micro-controller manufactured by Lipoo. It features a 16-bit MCU core, 1.2KBytes of internal ROM, 128 bytes of RAM, 130 GPIOs, 8 Serial Interfaces, 4 Timers, 4 Comparators, and a WDT. It also has a photoelectric interface to connect with optical sensors, which are RoHS compliant for a green environment. Additionally, a low-cost 32.768kHz crystal oscillator is used for accurate timing. The processor is suitable for various signal processing and communication applications for industrial and consumer products.