<![CDATA[RS485 on TAB5]]>I am trying to use RS485 on the TAB5 main board, whilst there is a connector and SIT3088 I can't find UIFlow support for it, there is for the UART and CAN, but not RS485, have I missed something?
Thanks

]]>https://community.m5stack.com/topic/7708/rs485-on-tab5RSS for NodeSun, 08 Mar 2026 23:02:53 GMTThu, 24 Jul 2025 15:48:27 GMT60<![CDATA[Reply to RS485 on TAB5 on Thu, 14 Aug 2025 06:17:23 GMT]]>@scroggyg Hi, the SIT3088 is a "converter" from UART to RS-485. To write/read the RS-485, use the UART1 (TX:20, RX:21).
The setup below works, although I have to store the arrays first somehow, before setting them into my text box (top_box), as the text appears briefly and then disappears ...but I can see I am receiving OK.
I got the tab5 yesterday ...and RS-485 was the first thing I wanted to test it.
35754316-24e0-4e02-9011-94aae5b44237-image.png

]]>https://community.m5stack.com/post/29750https://community.m5stack.com/post/29750Thu, 14 Aug 2025 06:17:23 GMT<![CDATA[Reply to RS485 on TAB5 on Fri, 25 Jul 2025 10:54:26 GMT]]>Hello @scroggyg

I created a Modbus example for M5Tab5 controlling an ACSSR relay. You can find it in the UIFlow Project Zone: M5Tab5_Modbus_ACSSR_Test_UIFlow2.3.1

Thanks
Felix

]]>https://community.m5stack.com/post/29614https://community.m5stack.com/post/29614Fri, 25 Jul 2025 10:54:26 GMT<![CDATA[Reply to RS485 on TAB5 on Fri, 25 Jul 2025 09:34:37 GMT]]>Thanks Robski, this is close, but not really the same thing, The Commu module allows native, and simpler RS485, but I will use Modbus.
Thanks

]]>https://community.m5stack.com/post/29613https://community.m5stack.com/post/29613Fri, 25 Jul 2025 09:34:37 GMT<![CDATA[Reply to RS485 on TAB5 on Fri, 25 Jul 2025 06:43:08 GMT]]>tab5modbus.PNG

]]>https://community.m5stack.com/post/29610https://community.m5stack.com/post/29610Fri, 25 Jul 2025 06:43:08 GMT