Luxiaoban TJA1050 CAN Bus Module with Green PCB Circuit Board Sensor and Transceiver

$3.37

W5500 Ethernet Network Module Development Board with Integrated TCP/IP Stack SPI to Ethernet for 51/STM32

$4.50

Waveshare CH340/343 Module USB to TTL TTL to USB Serial Communication New Version High Speed Multiple Protections

$20.00

W5500 Ethernet Network Module SPI Interface/Ethernet/Hardware TCP/IP Protocol

$23.90

RS232/485 to Ethernet Serial Server 485 Serial to Network Port Module Modbus Gateway Industrial Grade

$86.00

Modbus-TCP Protocol Switch Quantity Remote IO Acquisition Module Input Output Remote IO Module

$60.00

Level Converter 2-Channel 4-Channel Bidirectional Level Shifting Module IIC/UART/SPI 3.3V to 5V

$2.53

Industrial Grade USB to RS232/485 Communication Module, RS232/RS485/RS422 Serial Cable Converter

$7.26

CW Trainer – Morse Code Keyer Connectable to PC and Mobile Devices, Training Companion for Amateur Radio HAM Operators

$33.00

Waveshare Industrial Grade FT232 USB Serial Communication Module USB to TTL Converter TTL to USB UART

$39.00

USB to 4-Channel High-Speed RS485 [15Mbps] Multi-channel 485 Serial Converter CH9114 Expansion Module

$69.00

Din Rail Isolated RS232 to RS485 Bidirectional Serial Converter, Powered RS485 to RS232 Adapter

$16.80