Supports passive and active digital input, with bi-directional optocoupler isolation. Supports digital output with optocoupler isolation, provides higher driving capability with up to 450mA sinking currentThis is standard version, without back case. Equipped with Xtensa 32-bit LX7 dual-core processor, up to 240MHz main frequency. Supports 2.4GHz Wi-Fi (802.11 b/g/n) and BLT 5 (LE), with onboard antennaOnboard voltage regulator, supports 7~36V wide range power supply. Onboard CAN, RS485, I2C interface and TF card slot, GH1.25 2P battery header and digital isolated IO interfaces, etc.Rich WiKi Resources We provide official Wiki resources, please contact us for more information.Onboard LED indicators for indicating the power and battery recharging status. Supports flexible clock, module power supply independent setting and other controls to realize low power consumption in different scenariosBuilt in 512KB SRAM and 384KB ROM, with onboard 16MB Flash and 8MB PSRAM. Onboard 4.3inch capacitive touch display, 800480 resolution, 65K color. Supports capacitive touch control via I2C interface, 5-point touch with interrupt support