My name is CM4-ETH-RS485-BASE-B, which is an expansion board that can be used with Raspberry Pi Compute Module 4, and supports a 7-36V DC power supply and 5V DC-DC power supply of Typc-C interface. Onboard four isolated RS485 interfaces, 100M+1000M dual network ports, HDMI interface, two CSI interfaces, two USB interfaces, etc…
Packages Includes:
1 x Waveshare Dual ETH Quad RS485 Base Board (B) for Raspberry Pi Compute Module 4c
Official Raspberry Pi Debug Probe
Waveshare USB HUB HAT (B) for Raspberry Pi Series with 4x USB 2.0 Ports
R307 Optical Fingerprint Reader Sensor Module
Official Raspberry Pi High Quality Camera- C/CS Mount
X2 ELF 88MM Micro brushless racing kit
Sonoff 230V AC 4CH R3 4 Channels Smart Switch Support Google & Alexa Smart Home Automation 10A
DJI NAZA-M Lite V1.1 with GPS Kit
600mm Trapezoidal 4 Start Lead Screw 8mm Thread 2mm Pitch Lead Screw with Copper Nut
Official Raspberry Pi 3 Case of Raspberry Pi 3 Model B and B+ (Red-White)
Maxbotix MB1010 LV-MaxSonar-EZ1 Ultrasonic Rangefinder
APM 2.8 Upgraded Flight Controller kit with GPS Module Combo Kit
WIZnet Ethernet HAT 








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