An industrial-grade RS485 shield for LattePanda! It is designed to expand a reliable RS485 interface(OPEN4) for LattePanda V1. The receiving and sending of the module are isolated and it features signal isolation, power isolation, lightning surge protection, transient voltage resistance, and bus-protection, which assures reliable data transmission and effectively protects your LattePanda main-board. Apart from that, the module offers 12V power output and comes with on-board 120Ω terminal matching resistor that can be controlled by the switch.

The product employs a stackable connection, which makes it able to be easily fixed onto LattePanda main-board by copper columns without blocking the heat dissipation area of the main-board. This RS232 Connector Expansion Shield can be safely applied in industrial scenarios.

Board Overview

Connect the Shield and LattePanda V1

• Signal Isolation and Power Isolation
• Reliable Communication 
• 12V Power Output
• On-board 120Ω Terminal Matching Resistance
• Easy to Connect and Use
• 12mm Mounting Copper Columns

• RS485 communication scenarios

• Operating Voltage: 5V
• TTL Level: 1.8V
• Output Voltage: 12V
• Operating Temperature: -40℃ to +85℃
• Baud Rate: 115200 bps (LattePanda V1 TTL can only adjust to 115200 bps)
• Isolation Voltage: 2500VDC
• Not Support Hot Plugging

• Product wiki

• RS485 Connector Expansion Shield for LattePanda V1 x1
• M3 Double-way Hexagonal Copper Column(12mm) x3
• M3 Round Head Screw x6