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Devantech USB-RS485B Communications Module $21.72
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RS485 Raspberry Pi HAT

$14.99

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SKU: RB-Abu-16 Categories: , , , , ,
Description

Description

  • RS-485 Half Duplex Port
  • Up to 250 kbps transfer rate
  • Use the Raspberry Pi to control external RS-485 devices
  • Stackable with other Raspberry Pi accessory boards

The RS485 Raspberry Pi HAT is connected to the UART port on the Raspberry Pi using a SN65HVD72 interface. The SN65HVD72 IC converts the 3.3V UART signals to RS-485 voltages allowing communication with RS-485 compatible devices over a DB9 serial cable or twisted pair cable. The RS-485 port can be accessed through the DB9 port or the solder points on the PCB. The RS485 Pi contains protection against voltage spikes in the form of a TVS Diode and two 10-Ω, Pulse-Proof Thick-Film Resistors.

RS485 Raspberry Pi HAT- Click to Enlarge

PDF File

  • Supply Voltage
  • Logic Voltage at GPIO Port
  • Differential Input Voltage at A & B
  • High-level input voltage
  • Low-level input voltage
  • Signalling Data Rate
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