<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[M5DIN PowerOff when Vin is powered]]></title><description><![CDATA[<p dir="auto">Hi.<br />
I begin to love the M5DIN but I think there is a hardware issue either by design or my unit is faulty. Running the factory test program on a battery runs fine for manual power off and RTC based wake up. When off, the red LED is off. As soon as I power it on Vin 12V (green connector) I can't power off the unit anymore. The led does in a dimmed state and from that moment I can't power on or off completely. This happens with and without the battery connected. It seems that the train of FETs are not switched off completely when powered by Vin - probably the charger is trying to supply the unit (and battery). I see the effect of the HOLD pin in my firmware going LOW when the LED goes from full brightness to low brightness but again, never a clean off state. I expected that then Vin is on, the unit powers on (which it does, and it's fine) but I can still go sleeping. With that issue here, once I'm in this semi-sleep (semi bright led) adding Vin back will not power it on so my program is out of control.<br />
Is my understanding correct that this is a side effect in the design or is it just my unit that is faulty?<br />
Does your unit switch off completely (led off) when on Vin?</p>
<p dir="auto">PS: I also think the schematic needs to be updates as I see confusing signal labels and it's not completely drawn</p>
<p dir="auto">Many thanks.</p>
]]></description><link>https://community.m5stack.com/topic/6723/m5din-poweroff-when-vin-is-powered</link><generator>RSS for Node</generator><lastBuildDate>Sat, 16 May 2026 01:24:45 GMT</lastBuildDate><atom:link href="https://community.m5stack.com/topic/6723.rss" rel="self" type="application/rss+xml"/><pubDate>Fri, 23 Aug 2024 15:18:56 GMT</pubDate><ttl>60</ttl></channel></rss>