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Raspberry Pi 2-Channel Isolated RS232 Expansion HAT

$15.89

Part Number:2-CH RS232 HAT
Brand:Spotpear
SKU:0102004

Date:2020/07/07 18:13

This is a 2-channel isolated RS232 expansion HAT designed for Raspberry Pi, adopts the SC16IS752+SP3232 solution, with embedded protection circuits such as power supply isolation, ADI magnetical isolation, and TVS diode, etc.
It is easy to control the 2-channel RS232 via SPI interface. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for fields like industrial automation.

Do not include Raspberry Pi


Features


  • Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards
  • Adopts SC16IS752+SP3232 dual chip combination, converts SPI to RS232, data rate up to 921600bps
  • Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightning-proof & anti-electrostatic
  • Onboard LEDs for indicating the power and transceiver status
  • Breakout SPI control pins, for connecting with host control boards like Arduino
  • Comes with development resources and manual (examples in C and Python)

Specifications


  • UART expansion chip: SC16IS752
  • RS232 transceiver: SP3232
  • Communication interface: SPI
  • Data rate: 300 ~ 921600 bps
  • Operating voltage: 3.3V / 5V
  • Dimensions: 65mm × 56.5mm
  • Mounting hole size: 3.0mm


What's on Board


  1. SC16IS752 UART expansion chip
  2. SP3232 RS232 transceiver
  3. ADUM1412 digital isolator
  4. B0505LS power supply isolation module
  5. RT9193-33 power chip
  6. Raspberry Pi GPIO connector: for connecting Raspberry Pi
  7. MCU control header: for connecting host control boards like Arduino
  8. RS232 connector: 2 channels RS232 interface (RS232 9PIN male)
  9. Transient suppress diode array
  10. ESD protection two-way diode
  11. Serial port status indicator
    RXD1/TXD1: channel 1 transceiving indicator
    RXD2/TXD2: channel 2 transceiving indicator
  12. Power indicator
  13. Interrupt pin switch
    The interrupt pin IRQ is connected to P5 (BCM P24) by default
    Changeable via 0R resistor

Example


Note: the Raspberry Pi and serial cables are NOT included.

Pinouts

PINRASPBERRY PI (BCM)DESCRIPTION
VCC5V3.3V/5V power supply
GNDGNDGround
SCKP21 (SPI1 SCLK)SPI clock input
MOSIP20 (SPI1 MOSI)SPI data input
MISOP19 (SPI1 MISO)SPI data output
CSP18 (SPI1 CS)SPI chip select
IRQP24Interrupt output


Dimension