Raspberry Pi 4 IoT Linux Programmable Controller with Digital Input Digital Output
Pi640
Ethernet, WiFi, Bluetooth
1 x RS232/422/485
GPIO, HDMI, I2C, SD, USB, RTC, Buzzer
M.2 (for 5G/SSD)
Mini-PCIe (for 4G/LoRa)
1 x Digital input
1 x Digital output