RfLink & Ethernet (TCP232-T2)

Information and news about RFLink development and releases

Moderators: rtenklooster, Voyager, BertB, Stuntteam

Post Reply
Normal user
Posts: 1
Joined: 24 Apr 2019, 13:45

RfLink & Ethernet (TCP232-T2)

#1 Post by rafa1213 » 24 Apr 2019, 14:16


i want to connect my mega2560 over ethernet with domoticz.

The Problem is, that the mega2560 doesn't receive my commands.
Sending(from mega to domoticz) works perfectly.

i have a chinese mega2560 board with a CH340G.

The Ethernet to TTL adapter is a USR-TCP232-T2 Module.

TX0 (Atmega) <--> RXD (TCP232)
RX0 (Atmega) <--> TXD (TCP232)
3.3V(Atmega) <--> 3.3V(TCP232)
GND(Atmega) <--> GND (TCP232)

I've already tested the atmega and the TCP232 with an serial to usb adapter(B75937). Both are working perfectly (sending and receiving).

but if i connect the tcp232 with the atmega i can only send from the atmega to the ethernet, but the atmega can't receive anything from ethernet.

I'm not sure if the Atmega uses Rs232 or RS485.

Post Reply

Who is online

Users browsing this forum: No registered users and 2 guests