{"id":289,"date":"2021-09-19T10:33:23","date_gmt":"2021-09-19T10:33:23","guid":{"rendered":"https:\/\/www.lightninglouk.nl\/?page_id=289"},"modified":"2021-11-03T22:19:20","modified_gmt":"2021-11-03T22:19:20","slug":"esp32-node-monitor-page-3","status":"publish","type":"page","link":"https:\/\/www.lightninglouk.nl\/index.php\/esp32-node-monitor-page-1\/esp32-node-monitor-page-3\/","title":{"rendered":"ESP32 node monitor page 3"},"content":{"rendered":"\t\t
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ESP32 node monitor<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Step 5 Running the LND-pussy code<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The first thing you’ll notice when trying to run the LND-pussy code is an error about missing libraries.<\/p>\n

I selected the WiFiManager.h by tablatronix (tzapu) (don’t ask me why). Furthermore, I had to install the ArduinoJson.h library (version 6.18.5).
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Then, when I uploaded the code to the ESP32…..nothing, as expected.<\/p>\n

Doing some debugging it appeared that there was no connection to my node.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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You can find the original LND pussycat node monitor software here<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Step 6 Test connection to your node<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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It took me a long time before I found the reason the ESP32 would not connect to my node.<\/p>

I started with the code from BTCIOT Tutorial \u2013 LND Pussycat, node monitor<\/a>. But somehow it could not connect to my node. During all sorts of testing, I found out that you can check the connection to your node with the following command in your browser:<\/p>

https:\/\/your_ip_adress:8080\/v1\/getinfo
Replace your_ip_adress with the adres of your node. Youy probably get a safety warning, that the certificate is self signed. You can make an exception, to allow this.
Now hopefully you will get the following message:<\/p>

error: “expected 1 macaroon, got 0”. This means there is no firewall blocking the access to your node. Normally you cannot get information from your node without sending a macaroon which tells your node what your clearance level is (are you allowed to get some info, make transactions etc.).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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So, now we know the connection to the node is ok, so we need to modify the code.
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ESP32 node monitor Previous page Next page Step 5 Running the LND-pussy code The first thing you’ll notice when trying to run the LND-pussy code is an error about missing libraries. I selected the WiFiManager.h by tablatronix (tzapu) (don’t ask me why). Furthermore, I had to install the ArduinoJson.h library (version 6.18.5). Then, when I… Continue reading ESP32 node monitor page 3<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":172,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"footnotes":""},"class_list":["post-289","page","type-page","status-publish","hentry","entry"],"_links":{"self":[{"href":"https:\/\/www.lightninglouk.nl\/index.php\/wp-json\/wp\/v2\/pages\/289","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lightninglouk.nl\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.lightninglouk.nl\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.lightninglouk.nl\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lightninglouk.nl\/index.php\/wp-json\/wp\/v2\/comments?post=289"}],"version-history":[{"count":48,"href":"https:\/\/www.lightninglouk.nl\/index.php\/wp-json\/wp\/v2\/pages\/289\/revisions"}],"predecessor-version":[{"id":885,"href":"https:\/\/www.lightninglouk.nl\/index.php\/wp-json\/wp\/v2\/pages\/289\/revisions\/885"}],"up":[{"embeddable":true,"href":"https:\/\/www.lightninglouk.nl\/index.php\/wp-json\/wp\/v2\/pages\/172"}],"wp:attachment":[{"href":"https:\/\/www.lightninglouk.nl\/index.php\/wp-json\/wp\/v2\/media?parent=289"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}