12V 4 Channel relay module programmable with opto isolated RS485 STM8S103F3

Specification:-

1. Number of channels : 4
2. Operating voltage : 12V
3. Max. current : 20mA
4. 4 Optocoupler isolation
5. 4 relay closed LED indicating lamp
6. 4 input connections
7. RS485 communication connection
8. STM8S103F3 programmable microcontroller

MAX485 TTL to RS485 Long range converter module

Specifications:-

1. IC chip : MAX485
2. Operating voltage : 5V DC
3. Slew-rate limited transceiver
4. Low power consumption
5. Convenient RS-485 communication wiring
6. Multiple Units can be connected

MAX485 Module/RS-485 Converter Module for Arduino

Specifications:-

• IC chip : MAX485
• Operating voltage: 5V DC
• Slew-rate limited transceiver
• Low power consumption
• Convenient RS-485 communication wiring
• Multiple Units can be connected   

DB9 Male Screw Terminal to RS232 RS485 Conversion Board

Specification:-

• Connector Type: DB9 Male
• Screw Terminal: 9
• Supported Protocols: RS232, RS485
• All-copper DR9 seat
• Mounting Hole(mm): 3 mm
• Dimensions: 40mm x 37mm x 15mm (approx)
• High-quality PCB material

ADM1485AR 1/1 Transceiver Half Interface IC RS422, RS485 8-SOIC

Specification:-

• Communication Standard: RS-422, RS-485
• Data Rate: Up to 5 Mbps
• Package: 8-pin SOIC
• Supply Current-Max: 2.2 mA
• Supply Voltage-Max: 5.25 V
• Supply Voltage-Min: 4.75 V
• Supply Voltage-Nom: 5 V
• Operating Temperature Range: -40°C to 85°C

DS3695 Multipoint RS485/RS422 Transceivers SMD IC

Specification:-

• Mounting: SMD
• Number of: 8 Pins
• Supply voltage range: 4.75V to 5.25V
• 70 mV typical receiver hysteresis
• Temperature Range: 0°C to + 70°C

RS485 12-24V PH Soil Detector Moisture Sensor

Specification:-

• Type: Soil Moisture Sensor
• Power Supply: 12-24V Dc
• Soil temperature: -40-80°C
• Soil temperature: ±0.5°C
• Conductivity: ±5%
• NPK: ±2%FS
• Soil temperature: 0.1°C
• Conductivity: 1us/cm

XY-485 TTL–RS485 Level Converter Module 3.3V/5V

Specification:

• Model: XY-485
• Product Type: TTL to RS485 Adapter Module
• Model: XY-485
• Operating Voltage: 3.3V – 5V DC
• Logic Level: 3.3V / 5V TTL Compatible
• Interface: UART (TXD, RXD)
• Communication Type: Half-Duplex RS485
• Chipset: Single-chip RS485 Transceiver