{"id":5986,"date":"2024-04-24T10:02:00","date_gmt":"2024-04-24T08:02:00","guid":{"rendered":"https:\/\/shakti.tattva.se\/?p=5986"},"modified":"2025-08-30T07:45:37","modified_gmt":"2025-08-30T05:45:37","slug":"using-a-meross-wi-fi-switch-with-openhab","status":"publish","type":"post","link":"https:\/\/shakti.tattva.se\/index.php\/using-a-meross-wi-fi-switch-with-openhab\/","title":{"rendered":"Using a Meross Wi-Fi switch with OpenHab"},"content":{"rendered":"
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The aim of this article to set up and configure a Meross Wi-Fi switch (I\u2019m using an MSS310) with OpenHab2 to work in offline mode \u2014 with MQTT and no dependency on the Meross online services.<\/p>\n

I gathered most, almost all, of the information required from this thread on github Offline-ONLY support<\/a>.<\/p>\n

For this article, you need to be comfortable with the command line, and have git and node.js installed; you should already have an OpenHab2 setup.<\/p>\n

Configure a MQTT server<\/h2>\n

Install mosquitto<\/a><\/p>\n

The Meross switch requires a secure MQTT server.<\/p>\n

ssldir=\"\/usr\/share\/licenses\/mosquitto\/\"\r\n\r\n# ca\r\nopenssl genrsa -out $ssldir\/ca.key 2048\r\nopenssl req -new -x509 -days 1826 -key $ssldir\/ca.key -out $ssldir\/ca.crt -subj \"\/CN=MQTT CA\"\r\n\r\n# broker\r\nopenssl genrsa -out $ssldir\/broker.key 2048\r\nopenssl req -new -out $ssldir\/broker.csr -key $ssldir\/broker.key -subj \"\/CN=broker\"\r\nopenssl x509 -req -in $ssldir\/broker.csr -CA $ssldir\/ca.crt -CAkey $ssldir\/ca.key -CAcreateserial -out $ssldir\/broker.crt -days 360\r\n\r\n\r\n<\/pre>\n
Edit mosquitto configuration<\/h2>\n
In \/etc\/mosquitto\/mosquitto.conf:<\/p>\n
listener 1883\r\nallow_anonymous true\r\nlistener 8883\r\nport 1883\r\nallow_anonymous true\r\nrequire_certificate false\r\n# replace with your CA Root \r\ncafile \/usr\/share\/licenses\/mosquitto\/ca.crt\r\n# replace with your server certificate and key paths \r\ncertfile \/usr\/share\/licenses\/mosquitto\/broker.crt\r\nkeyfile \/usr\/share\/licenses\/mosquitto\/broker.key<\/pre>\n
Create cert_regen.sh bash script, which will create a new certificate once a week:<\/h6>\n
#!\/usr\/bin\/env bash\r\nssldir=\"\/usr\/share\/licenses\/mosquitto\/\"\r\n\r\n# ca\r\nopenssl genrsa -out $ssldir\/ca.key 2048\r\nopenssl req -new -x509 -days 1826 -key $ssldir\/ca.key -out $ssldir\/ca.crt -subj \"\/CN=MQTT CA\"\r\n\r\n# broker\r\nopenssl genrsa -out $ssldir\/broker.key 2048\r\nopenssl req -new -out $ssldir\/broker.csr -key $ssldir\/broker.key -subj \"\/CN=broker\"\r\nopenssl x509 -req -in $ssldir\/broker.csr -CA $ssldir\/ca.crt -CAkey $ssldir\/ca.key -CAcreateserial -out $ssldir\/broker.crt -days 360<\/pre>\n
Create a cronjob for it<\/h6>\n
00 22 * * 7 \/....\/cert_regen.sh<\/pre>\n
Configure the Meross switch for your Wi-Fi and MQTT server<\/h2>\n
Get the meross tools, from your command line<\/h3>\n
git clone https:\/\/github.com\/bytespider\/Meross\r\ncd Meross\/bin\/src\r\nnpm i\r\n<\/code><\/pre>\n
Plugin the Meross smartplug.<\/h6>\n
If it\u2019s not your first time using the switch, press and hold the power button for 5 seconds. Connect to its Wi-Fi access point (Meross_XXX)<\/p>\n
Configure the switch for your Wi-Fi and MQTT Server<\/h6>\n
from Meross\/bin\/src directory<\/p>\n
.\/meross setup --gateway 10.10.10.1 --wifi-ssid <your-ssid> --wifi-pass <your-pass> --mqtt <mqtt-host-ip>:8883\r\n<\/code><\/pre>\n
At this stage, you may hear some clicks from the switch. You can also verify that it has connected using the mosquito logs:<\/p>\n
1595295630: New client connected from 192.168.30.7<\/code><\/p>\n
You should also see some messages from the new switch:<\/p>\n
\/appliance\/<\/code>1712281825467829030134298f151c4a<\/strong>\/publish<\/code><\/p>\n
{“header”:{“messageId”:”7c2834f83f9cc5b1c7ae1049280a9f3f”,”namespace”:”Appliance.Control.ToggleX”,”method”:”PUSH”,”payloadVersion”:1,”from”:”\/appliance\/1712281825467829030134298f151c4a\/publish”,”timestamp”:1557534775,”timestampMs”:955,”sign”:”f07e2a7ab622997508d359cb89c74038″},”payload”:{“togglex”:{“channel”:1,”onoff”:1,”lmTime”:1557534775}}}<\/p>\n
Note the appliance ID in bold above.<\/strong><\/p>\n
On my Mac, I also used MQTT Explorer<\/a> to view the messages and to determine the appliance id.<\/p>\n
Add the switch to Openhab<\/h2>\n
Add a new thing.<\/h3>\n