{"id":233,"date":"2020-01-28T10:26:31","date_gmt":"2020-01-27T23:26:31","guid":{"rendered":"http:\/\/www.vk1zdj.net\/?p=233"},"modified":"2020-02-12T11:22:18","modified_gmt":"2020-02-12T00:22:18","slug":"building-hardware-to-communicate-with-a-lora-satellite","status":"publish","type":"post","link":"http:\/\/www.vk1zdj.net\/?p=233","title":{"rendered":"Building Hardware to Communicate with a LORA Satellite"},"content":{"rendered":"\n<p>A couple of months ago, a Spanish PicoSatellite (5cm x 5cm x 5cm) was launched called FossaSat-1  ( <a href=\"https:\/\/fossa.systems\/\">https:\/\/fossa.systems\/<\/a> ).  It was designed using open source principles and provides a LORA downlink on 70cm UHF using a standard SX126x LORA chip.<\/p>\n\n\n\n<p>I was very enthusiastic, so I purchased a couple of modules, and quickly discovered that my eyes would never be able to solder wires onto the stupidly tiny pitch edge pads, so I designed an adaptor board for the Arduino ecosystem.   I sent it of to PCBGOGO and a week later I get a set of 10 boards back<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"686\" height=\"637\" src=\"http:\/\/www.vk1zdj.net\/wp-content\/uploads\/2020\/02\/2020-02-12-10.01.51.jpg\" alt=\"\" class=\"wp-image-236\" srcset=\"http:\/\/www.vk1zdj.net\/wp-content\/uploads\/2020\/02\/2020-02-12-10.01.51.jpg 686w, http:\/\/www.vk1zdj.net\/wp-content\/uploads\/2020\/02\/2020-02-12-10.01.51-300x279.jpg 300w, http:\/\/www.vk1zdj.net\/wp-content\/uploads\/2020\/02\/2020-02-12-10.01.51-80x74.jpg 80w\" sizes=\"(max-width: 686px) 100vw, 686px\" \/><\/figure>\n\n\n\n<p>When I designed the board I was very careful to make it as flexible as i could, supporting both the Chengdu eByte E22 series as well as the Thinker labs RA-01 modules.  Essentially, the board is a set of level converters and somewhere to solder the tiny tiny module \ud83d\ude42<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"709\" src=\"http:\/\/www.vk1zdj.net\/wp-content\/uploads\/2020\/02\/Schematic-1024x709.png\" alt=\"\" class=\"wp-image-241\" srcset=\"http:\/\/www.vk1zdj.net\/wp-content\/uploads\/2020\/02\/Schematic-1024x709.png 1024w, http:\/\/www.vk1zdj.net\/wp-content\/uploads\/2020\/02\/Schematic-300x208.png 300w, http:\/\/www.vk1zdj.net\/wp-content\/uploads\/2020\/02\/Schematic-768x532.png 768w, http:\/\/www.vk1zdj.net\/wp-content\/uploads\/2020\/02\/Schematic-80x55.png 80w, http:\/\/www.vk1zdj.net\/wp-content\/uploads\/2020\/02\/Schematic.png 1192w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Still to do &#8211; A bit of debugging, and making an antenna suitable for receiving the signal.  Unfortunately, the antennas of the FossaSat-1 satellite were unable to be deployed, so it is only receivable using RTTY at the moment.  But I will be ready for their next satellite \ud83d\ude42<\/p>\n\n\n\n<p>Its such a pretty little satellite<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"680\" height=\"452\" src=\"http:\/\/www.vk1zdj.net\/wp-content\/uploads\/2020\/02\/FossaSat1.jpg\" alt=\"\" class=\"wp-image-238\" srcset=\"http:\/\/www.vk1zdj.net\/wp-content\/uploads\/2020\/02\/FossaSat1.jpg 680w, http:\/\/www.vk1zdj.net\/wp-content\/uploads\/2020\/02\/FossaSat1-300x199.jpg 300w, http:\/\/www.vk1zdj.net\/wp-content\/uploads\/2020\/02\/FossaSat1-80x53.jpg 80w\" sizes=\"(max-width: 680px) 100vw, 680px\" \/><figcaption>FossaSat-1 &#8211; Image from their website<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>A couple of months ago, a Spanish PicoSatellite (5cm x 5cm x 5cm) was launched called FossaSat-1 ( https:\/\/fossa.systems\/ ). It was designed using open source principles and provides a LORA downlink on 70cm UHF using a standard&#8230; <\/p>\n","protected":false},"author":1,"featured_media":237,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false},"categories":[6,5],"tags":[],"jetpack_featured_media_url":"http:\/\/www.vk1zdj.net\/wp-content\/uploads\/2020\/02\/Arduino-Lora-Board.jpg","_links":{"self":[{"href":"http:\/\/www.vk1zdj.net\/index.php?rest_route=\/wp\/v2\/posts\/233"}],"collection":[{"href":"http:\/\/www.vk1zdj.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.vk1zdj.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.vk1zdj.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.vk1zdj.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=233"}],"version-history":[{"count":4,"href":"http:\/\/www.vk1zdj.net\/index.php?rest_route=\/wp\/v2\/posts\/233\/revisions"}],"predecessor-version":[{"id":242,"href":"http:\/\/www.vk1zdj.net\/index.php?rest_route=\/wp\/v2\/posts\/233\/revisions\/242"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.vk1zdj.net\/index.php?rest_route=\/wp\/v2\/media\/237"}],"wp:attachment":[{"href":"http:\/\/www.vk1zdj.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=233"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.vk1zdj.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=233"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.vk1zdj.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=233"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}