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Green development board with dual UART headers and RJ45 port

LORDWORLD

LORDWORLD 2-CH UART to Ethernet Converter Module development board

SKU CH-BNNJ-HRQYP

Converts two UART TTL channels to 10/100M Ethernet with bi-directional transparent transmission and four TCP/UDP operating modes

  • Bi-direction transparent UART-to-Ethernet data transmission
  • 10/100M auto-negotiation Ethernet with 802.3 compliance
  • Auto-MDI/MDIX detects and switches cable type automatically
  • DHCP auto-obtains IP and DNS for easy network access
  • Four operating modes: TCP Client, TCP Server, UDP Client, UDP Server

UART-to-Ethernet Bridge for IoT Prototyping

This two-channel module converts UART TTL signals to a 10/100M Ethernet link using embedded MAC and PHY layers. It handles bi-directional transparent transmission and auto-negotiates full- or half-duplex operation under the 802.3 standard. Network parameters such as IP, port and operating mode are set through host-computer software or UART commands.

Makers and engineers adding wired connectivity

Suits projects that need DHCP address assignment, DNS access and automatic cable-type detection via Auto-MDI/MDIX. The four selectable modes — TCP Client, TCP Server, UDP Client, UDP Server — cover common IoT topologies. Builders requiring Power-over-Ethernet, gigabit speeds or wireless links should look at other hardware.

Dual UART channels on a single RJ45 port

Two independent serial streams share one 10/100M Ethernet connection, letting you bridge a pair of TTL devices to the network without extra cabling. This channel density is the key factor when deciding if the board fits your application.

How it compares

Measured against everything we stock in Single-Board Computers & Dev Kits, at today’s prices. Recalculated every night.

Price $34.99
Cheaper than about 63% of the 1,420 comparable items (median $44.99).

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Specifications

Product
Brand nameLORDWORLD

Questions about this item

What power supply must I already have to run this 2-CH UART to Ethernet module?

The module needs an external DC supply connected to its VCC and GND pins; check the board silkscreen or datasheet for the exact voltage before wiring.

Will the 10/100M 802.3 Ethernet port auto-negotiate with my older 10BASE-T switch?

Yes, the RJ45 interface supports 10/100M full- and half-duplex auto-negotiation and Auto-MDI/MDIX, so it will link with legacy 10 Mbit switches using straight or crossover cables.

How can I confirm bi-directional transparent transmission is working after I configure the module in TCP SERVER mode?

Connect the UART pins to a terminal, open a TCP client to the module's IP and port, then verify that characters typed on either side appear instantly on the other.

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