Isolated RS485 RS232 Expansion HAT for Raspberry Pi, SPI Control
€21.41*
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Product information "Isolated RS485 RS232 Expansion HAT for Raspberry Pi, SPI Control"
Kurzbeschreibung: Isolated RS485 RS232 Expansion HAT For Raspberry Pi, SPI Control, Onboard Protection Circuits
Comes with development resources and manual

- Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards
- Adopts the combination scheme of SC16IS752, SP3485 and SP3232, converts SPI to one RS485 and one RS232
- Onboard resettable fuse and protection diodes, ensure the stable output of RS485 current and voltage, prevent over-current and over-voltage, improve shock proof performance
- Onboard TVS (Transient Voltage Suppressor), can effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic
- Breakout SPI control pins, for connecting with Arduino and other host control boards
- Comes with development resources and manual (examples in C and Python)
| uart expansion chip | SC16IS752 |
|---|---|
| Communication Interface | SPI |
| RS485 transceiver | SP3485 |
| RS232 transceiver | SP3232 |
| data rate | Up to 921600bps |
| Operating Voltage | 5V |
| Mounting hole size | 3.0mm |
| Dimensions | 65mm × 56.5mm |
Suitable for Raspberry Pi series boards

RS232: full-duplex communication, SP3232 transceiverRS485: semi/full-automatic communication, SP3485 transceiver

Onboard TVS (Transient Voltage Suppressor) And resettable Fuse, Can Effectively Suppress Surge Voltage And Transient Spike Voltage In The Circuit, Improve Shock proof performance



- Raspberry Pi GPIO interface for connecting to the Raspberry Pi Board
- MCU control interface for connecting to other host boards such as Arduino
- RS485 interface
- RS232 interface (DB9 male)
- SC16IS752 UART chip
- SP3485 RS485 Transceiver
- SP3232 RS232 Transceiver
- π142 Digital Isolator chip
- PC817 Optocoupler Isolation
- B0505LS Power Isolation Module
- RT9193-33 power chip
- TVS (Transient Voltage Suppressor)
- Resettable Fuse
- Status Indicator PWR: Power indicator RXD/TXD: UART transceiving indicator
- RS485 120Ω terminal resistor on/off
- Interrupt pin switching Use D24 pin by default, can be changed to D16/D12/D25 pin by re-soldering the position of 0Ω resistor
- RS485 operating mode selection Semi-automatic: A=1, B=0 Full-automatic: A=0, B=1


* Resources for different product may vary, please check the wiki page to confirm the actually provided resources.
Lieferumfang
- RS485 RS232 HAT x1
- 2x20PIN female pinheader x1
- RPi screws pack (2pcs) x1
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