R485P32 UART RS232 TTL to RS485 Converter Module – Auto Direction Serial Adapter for Arduino ESP32 Raspberry Pi

The R485P32 is an RS485-to-TTL module designed for the ESP32 Arduino. It features efficient automatic data flow redirection and surge protection. More importantly, it also features a unidirectional data path, allowing you to program the ESP32 Arduino directly while connecting to its RXD and TXD pins.

R485P32 ESP32 Arduino Specific RS485 converter

Working voltage: DC 3.3-5V
Working Current: 5-40MA
TTL level: DC 3.3V/5V
ESD protection:±20KV
True Fail-Safe Receiver
Anti-surge protection: 6.5V
Allow Up to 256 Transceivers on the Bus
Terminal spacing: 3.96mm.
Terminal Blocks: Wire Range 26-16AWG, Strip Length 3.96mm, Metric M2/M2.5 Slotted Screws.
Operating temperature : -40-85℃
Size : 34x17x4.0mm(No Terminal),34x17x12mm(With Terminal)
Weight :2.3g(No Terminal),5.3g(With Terminal)

Features:
Connects to RXD and TXD ports without affecting USB programming
Automatically switches between transmit and receive directions
Automatic baud rate: 100-128000BPS
Automatic parity: None/ODD/EVEN
Automatic stop bits: 1/1.5/2

Pin description:
VCC: Power Supply +(3.3-5V)
GND: Power Supply -
RXD: TTL receive port
TXD: TTL transmit port
GND : RS485 BUS construction site end (usually can not be connected)
A+ : RS485 BUS A+
B- :RS485 BUS B-

Application

For Arduino UNO MEGA2560 NANO Pro MINI etc.
For ESP32 S3 C3 C6 etc.
For Raspberry Pi Original PI etc.
RS485 Temperature and humidity sensor
PTZ Camera
MODBUS RTU IO
RS485 Relay/Switch/Sensor
Automated Manufacturing line
Wifi to RS485(ESP8266/ESP32)
Bluetooth to RS485(HC-05/HC06)
Wireless Module to RS485(HC-11)
Ethernet to RS485( Ethernet TTL Module)