The Okdo processor core of The Okdo TelePort control board is ATmega328. Its IO port is extended as a registered jack, which is convenient for you to connect external sensors and modules. You will feel free to worry about wiring errors and damage to external products. The development board has five separate digital interfaces (D5-D9, and D5, D6, D9 are PWM ports), one dual digital interface (D3 and D4), four analog input interfaces (A0-A3), one joystick module interface (D2 A6 A7), 1 SPI communication interface, 1 serial communication interface, one I2C communication interface. Microcontroller core ATmega328P-AU
Digital signal I/O interface 5 (of which 3provide PWM output)
Analog signal input interface 4