<![CDATA[REXduino - REXLANG Error]]>Hi,
I have a big problem with communication between the Raspberry PI and the ArduinoMega2560. RPI stoped communication with Arduino after the error, see below. It happens several times per a day. I use REXYGEN 2.50.10.12932, Arduino IDE 1.8.12 and REXduino master/slave version 2.2.0.
Thanks for the reply.
Best regards.
Michal
e67d04fa-0873-486f-ab4b-c3f6cc88605a-obrazek.png

]]>https://forum.rexygen.com/topic/251/rexduino-rexlang-errorRSS for NodeMon, 10 Aug 2026 23:08:03 GMTThu, 01 Jul 2021 07:22:51 GMT60<![CDATA[Reply to REXduino - REXLANG Error on Fri, 23 Jul 2021 18:23:17 GMT]]>@mtomek Hi Michal,
you are welcome. I'm glad the problem has been fixed.

Cheers,
Jan

]]>https://forum.rexygen.com/post/999https://forum.rexygen.com/post/999Fri, 23 Jul 2021 18:23:17 GMT<![CDATA[Reply to REXduino - REXLANG Error on Fri, 23 Jul 2021 08:41:28 GMT]]>@reitinge Hi Jan,
I had downloaded the latest version 2.2.0 of the Rexduino library. The problem was that I only replaced the REXduino_master.c library, but I forgot replace the REXduino_library.mdl library. So I have an old function block left in the project.
Now the error didn´t appear.
Thank you so much for the solution.
Best regards
Michal

]]>https://forum.rexygen.com/post/998https://forum.rexygen.com/post/998Fri, 23 Jul 2021 08:41:28 GMT<![CDATA[Reply to REXduino - REXLANG Error on Fri, 02 Jul 2021 12:48:40 GMT]]>@mtomek It occurs to me that you do not have the latest version of REXduino block library. The Arduino_MEGA2560hex block should have the last input and output named userSendV and userRecvV. Please, download the git repository and look into REXduino_master/Examples/51_MEGA2560hex_IO.
obrázek_2021-07-02_144656.png

If you downloaded the new version of REXduino recently, you should replace the original Arduino_MEGA block with a new one. Also, please update the REXduino_master.c script and upload a new REXduino_slave.ino sketch into Arduino.

]]>https://forum.rexygen.com/post/991https://forum.rexygen.com/post/991Fri, 02 Jul 2021 12:48:40 GMT<![CDATA[Reply to REXduino - REXLANG Error on Fri, 02 Jul 2021 08:41:53 GMT]]>@reitinge Hi Jan,
I don't use the userSend input of block Arduino_MEGA2560Hex.
Thanks.
Michal
8752eea3-a610-4335-885c-863c4a952bc7-obrazek.png

]]>https://forum.rexygen.com/post/990https://forum.rexygen.com/post/990Fri, 02 Jul 2021 08:41:53 GMT<![CDATA[Reply to REXduino - REXLANG Error on Thu, 01 Jul 2021 18:20:27 GMT]]>@mtomek Hi Michal,
it seems that the problem occurs when REXYGEN sends some user data to Arduino and Arduino responds. Are you using userSendV input of the Arduino_MEGA2560hex block?

Cheers,
Jan

]]>https://forum.rexygen.com/post/985https://forum.rexygen.com/post/985Thu, 01 Jul 2021 18:20:27 GMT