<![CDATA[EspNow is receiving previous messages]]>I've started work on a project to make a sports tracker and it was working well for a bit, but now i'm a little confused on how the EspNow is working.

Esp Setup on Controller
0_1623026871180_2021-06-06_19-47-27.png

Esp Setup on Check-In Points
0_1623026831922_2021-06-06_19-46-47.png

My Setup
Core2 as the Brains
Atom X 2 as the check in points

When the player taps the RFID card against the reader at either check in point it send the device's MAC Address + "@" + "PYLON" + "@" + Players name to the hub device. Then the hub will receive the message and process it later. After it has been processed the hub send a signal to the check-in point to display a "!" symbol.

The odd thing is, if I restart every piece and start scanning, the wrong check-in point will get the signal. Then if I scan it again, it moves to the right point, but if I move to the next point, the last check-in point receives the signal. So it is acting like a buffer and the last one is making it through.

My Controller

0_1623026732446_2021-06-06_19-42-51.png

My Check-in Points

0_1623026742117_2021-06-06_19-44-09.png

]]>https://community.m5stack.com/topic/3354/espnow-is-receiving-previous-messagesRSS for NodeWed, 29 Apr 2026 12:22:46 GMTMon, 07 Jun 2021 00:48:05 GMT60<![CDATA[Reply to EspNow is receiving previous messages on Wed, 09 Nov 2022 07:12:37 GMT]]>I have same problem , after some time EspNow recieve callback block returns duplicate message.
Uiflow 1.10.7 , firmware m5 tough 1.10.6

]]>https://community.m5stack.com/post/19237https://community.m5stack.com/post/19237Wed, 09 Nov 2022 07:12:37 GMT<![CDATA[Reply to EspNow is receiving previous messages on Thu, 07 Apr 2022 23:43:33 GMT]]>Hello,
I'm seeing the same issue with espnow receiving the previous message after the devices have been running for anywhere from couple of hours to a day. I'm using uiflow version 1.9.5 on a M5Stamp and Core2. The project is a home alarm system, I'm only sending 4 bytes of data when a zone is opened/closed or if the alarm is armed or disarmed.

If I can't find the solution I'm afraid I going to have to ditch uiFlow and try the Arduino API.

Did you ever figure out the issue?

Thank You
Austin

]]>https://community.m5stack.com/post/17131https://community.m5stack.com/post/17131Thu, 07 Apr 2022 23:43:33 GMT