# Problem with node-red-node-serialport. No debug message
**URL:** https://discourse.nodered.org/t/problem-with-node-red-node-serialport-no-debug-message/23513
**Category:** General
**Created:** [23 March 2020 16:02 UTC](https://discourse.nodered.org/t/problem-with-node-red-node-serialport-no-debug-message/23513 "2020-03-23T16:02:07Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@markost](https://discourse.nodered.org/u/markost)
#### Post date: [23 March 2020 16:02 UTC](https://discourse.nodered.org/t/problem-with-node-red-node-serialport-no-debug-message/23513/1 "2020-03-23T16:02:07Z")
I was working with a serialport node today and have a weird problem.
The serial port is recognized in the editor and is connected.
I have a serial to TTL converter with short circuit TX to RT pins.
When I send a debug message I do not get it back to serial in.
TX and RX LEDs light up on the converter.
Also the converter works correctly with RealTerm.
I tried uninstalling and installing serialnode, the situation is the same.
Serialnode is 0.10.0.
Node-RED is 1.0.2 on Windows10.
node.js is v12.13.0
What else could I try?
Thx!
**UPDATE**
I made a program in Arduino that sends "Ping" and then "Pong" every 1000mS to a serial.
In the meantime, it waits for serial input and, if any, send it to a serial.
"Ping" and "Pong" are printed normally and the input data does not (in Node-RED).
Everything is fine with the Arduino serial monitor.
I also tried on LInux, on the new Node-RED installation, the situation is the same.
Is anyone interested in how his serial out behaves?
Thx for any help!
---
### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [22 May 2020 16:02 UTC](https://discourse.nodered.org/t/problem-with-node-red-node-serialport-no-debug-message/23513/2 "2020-05-22T16:02:12Z")
This topic was automatically closed 60 days after the last reply. New replies are no longer allowed.