RS485 Board (3.3V)
SP3485-based RS485 communication breakout board operating at 3.3 V. Half-duplex RS485 transceiver for UART-to-RS485 conversion in 3.3 V systems.
Pinout
- RO1
RO
Type · GPIO - RE2
RE
Type · Control - DE3
DE
Type · Control - DI4
DI
Type · GPIO - GND5
GND
Type · Ground - A6
A
Type · Unknown - B7
B
Type · Unknown - VCC8
VCC
Type · Power
| Pin | Position | Type | Function |
|---|---|---|---|
| RO | 1 | GPIO | RO |
| RE | 2 | Control | RE |
| DE | 3 | Control | DE |
| DI | 4 | GPIO | DI |
| GND | 5 | Ground | GND |
| A | 6 | Unknown | A |
| B | 7 | Unknown | B |
| VCC | 8 | Power | VCC |
Pin details
8 connections- RO1
RO
GPIO - RE2
RE
Control - DE3
DE
Control - DI4
DI
GPIO - GND5
GND
Ground - A6
A
Unknown - B7
B
Unknown - VCC8
VCC
Power
Start wiring
Ethernet · UART · SPI · Shield
Verify supply voltage and logic levels before powering up.
Module pins: VCC, GND. Schematik maps them to your board in the app.
Wired comms
118 other optionsW5100/W5500 Ethernet shields, LAN8720 RMII PHY boards, MAX3243 RS-232 level shifters, isolated USB-to-RS485 converters, CAN FD bridges, and passive or active PoE injectors and splitters.
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