<![CDATA[UIflow support for Relay module bases?]]>Is there any way to use the M121 4-Channel Relay module in UIFlow?

Is it going to use the same UIFlow Unit as the U097 4-Relay unit (that connects via Port A i2c)?

The U097 has some added features (the LEDs, NO and NC) that the M121 does not.

And if the M121 needs something different, how do I get that integrated with a UIFlow app?

]]>https://community.m5stack.com/topic/4691/uiflow-support-for-relay-module-basesRSS for NodeMon, 11 May 2026 18:09:28 GMTSat, 08 Oct 2022 23:21:36 GMT60<![CDATA[Reply to UIflow support for Relay module bases? on Sun, 09 Oct 2022 05:28:04 GMT]]>Hello @wkearney99

I don't see 4-Relay module in UIFlow (yet).

No, I don't think you can use the UIFlow for 4-Relay unit since the I2C registers are different. 4-Relay module uses register 0x10 to control the relay vs. 4-Relay unit uses register 0x11 to control the relay and LED (register 0x10 is a control register).

Documentation for 4-Relay module. Documentation for 4-Relay unit.

BTW: you could use the default I2C Master blocks (under Hardwares) to control the 4-Relay module.

Thanks
Felix

]]>https://community.m5stack.com/post/18912https://community.m5stack.com/post/18912Sun, 09 Oct 2022 05:28:04 GMT