{"id":203,"date":"2021-09-11T18:55:41","date_gmt":"2021-09-11T18:55:41","guid":{"rendered":"https:\/\/www.jeskevic.info\/?p=203"},"modified":"2021-09-11T18:55:41","modified_gmt":"2021-09-11T18:55:41","slug":"tx-rx-ack-nrf24l01","status":"publish","type":"post","link":"https:\/\/www.jeskevic.info\/?p=203","title":{"rendered":"TX->RX ACK nRF24L01+"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Actively experimenting with nRF24L01+<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A lot of code, a lot of documentation, and finally, after many years, they are running. One sending, one receiving &#8211; beautiful!<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"766\" data-src=\"https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/09\/image-7-1024x766.png\" alt=\"\" class=\"wp-image-211 lazyload\" data-srcset=\"https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/09\/image-7-1024x766.png 1024w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/09\/image-7-300x224.png 300w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/09\/image-7-768x575.png 768w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/09\/image-7-1536x1149.png 1536w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/09\/image-7-2048x1532.png 2048w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/09\/image-7-1568x1173.png 1568w\" data-sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/766;\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">After some more code, I&#8217;ve done a scanner. <\/p>\n\n\n\n<!--more-->\n\n\n\n<p class=\"wp-block-paragraph\">After running for 12 hours, it looks like this:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"578\" height=\"445\" data-src=\"https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/09\/image-3.png\" alt=\"\" class=\"wp-image-207 lazyload\" data-srcset=\"https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/09\/image-3.png 578w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/09\/image-3-300x231.png 300w\" data-sizes=\"(max-width: 578px) 100vw, 578px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 578px; --smush-placeholder-aspect-ratio: 578\/445;\" \/><figcaption>12 hours accumulated detected signal<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">You can see the Wi-Fi bandwidth of my router. And some signal from neighbors&#8230; (I have marked allowed WiFi frequencies). So I&#8217;ll recommend for nRF to use the channels > 90.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">So, let&#8217;s restart the integrating and push the transmit button on the other board.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"572\" height=\"450\" data-src=\"https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/09\/image-2.png\" alt=\"\" class=\"wp-image-206 lazyload\" data-srcset=\"https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/09\/image-2.png 572w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/09\/image-2-300x236.png 300w\" data-sizes=\"(max-width: 572px) 100vw, 572px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 572px; --smush-placeholder-aspect-ratio: 572\/450;\" \/><figcaption>Useful signal. It is pretty &#8220;fat&#8221; (transmitting on the channel 111)<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"575\" height=\"453\" data-src=\"https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/09\/image-4.png\" alt=\"\" class=\"wp-image-208 lazyload\" data-srcset=\"https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/09\/image-4.png 575w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/09\/image-4-300x236.png 300w\" data-sizes=\"(max-width: 575px) 100vw, 575px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 575px; --smush-placeholder-aspect-ratio: 575\/453;\" \/><figcaption>Active Wi-Fi + nRF signal<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"343\" data-src=\"https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/09\/image-6-1024x343.png\" alt=\"\" class=\"wp-image-210 lazyload\" data-srcset=\"https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/09\/image-6-1024x343.png 1024w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/09\/image-6-300x100.png 300w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/09\/image-6-768x257.png 768w, https:\/\/www.jeskevic.info\/wp-content\/uploads\/2021\/09\/image-6.png 1276w\" data-sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/343;\" \/><figcaption>I have integrated Wi-Fi over the time, looks interesting.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Interestingly, modules with PCB antenna are more powerful, than external antenna. Maybe they are better on the open air.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Actively experimenting with nRF24L01+ A lot of code, a lot of documentation, and finally, after many years, they are running. One sending, one receiving &#8211; beautiful! After some more code, I&#8217;ve done a scanner.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[52],"class_list":["post-203","post","type-post","status-publish","format-standard","hentry","category-electro","tag-nrf24l01","entry"],"_links":{"self":[{"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=\/wp\/v2\/posts\/203","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=203"}],"version-history":[{"count":1,"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=\/wp\/v2\/posts\/203\/revisions"}],"predecessor-version":[{"id":212,"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=\/wp\/v2\/posts\/203\/revisions\/212"}],"wp:attachment":[{"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=203"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=203"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=203"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}