Controllino Mega Industrial PLC, ATmega2560 CPU, Arduino open source, Serial TTL interface, I2C, SPI, RTC. 5x digital inputs (I16, I17, I18, IN0, IN1), Analog/digital inputs 16x (A0-A15), Digital outputs 12x Half -Bridge - 2A @ 12V or 24V (D0-D15) + 12x High Side Switch - 2A @ 12V or 24V (D12-D23), outputs 15x PWM (D0-D11, D14-D16) Features: Microcontroller:ATmega2560 from Atmel, Clock Speed @ 16MHz | 100% Arduino compatible Analog/Digital Inputs: 21 Interrupt Inputs: 2 Digital 2A Outputs: 24 (15 PWM) Relay Outputs: 16 Serial TTL Interface: 2 I2C Interface: 1 SPI Interface: 1 RS485 Interface: 1 RTC (Real-time clock): 1 Ethernet Interface: 1