{"id":427,"date":"2016-09-18T20:54:35","date_gmt":"2016-09-18T19:54:35","guid":{"rendered":"http:\/\/darkandscary.co.uk\/?p=427"},"modified":"2016-09-18T20:54:35","modified_gmt":"2016-09-18T19:54:35","slug":"trying-out-the-raspberry-pi-touch-screen","status":"publish","type":"post","link":"https:\/\/darkandscary.co.uk\/?p=427","title":{"rendered":"Trying out the Raspberry Pi Touch-screen"},"content":{"rendered":"

Its time to power up the Pi and its touch screen. It is necessary to apply two sources of power, one for the screen and one for the Pi. I bought a suitable cable from SmartiCase at the same time as the case itself.<\/p>\n

\"usbsplitter_1\"<\/a>
USB Splitter cable for powering two devices.<\/figcaption><\/figure>\n

Place the two micro-USB plugs carefully in to the sockets – its a bit fiddly – and trail the cable away from the back of the device.<\/p>\n

\"Fitting<\/a>
Fitting the micro-USB power leads.<\/figcaption><\/figure>\n

Now to power up!<\/p>\n

\"Oops!<\/a>
Oops! The wrong OS.<\/figcaption><\/figure>\n

Oh dear. I forgot to wipe the SD card from the last time I used the Pi, helping to test a friend’s arcade machine build. Now here’s where things get fiddly. It will be necessary to undo the screws on the audio hat in order to allow its extraction before the trap-door can be opened and the Pi flipped out to allow the SD card to be extracted and replaced. Give me a moment to burn a new image on the card…<\/p>\n

While I’m preparing a new Raspian image, let’s have a look at Hector having fun checking the case for Lego compatibility…<\/p>\n

\"hectortryingpitouch_1\"<\/a>
Hector checking Lego compatibility<\/figcaption><\/figure>\n
\"hectorwithbothcases_1\"<\/a>
Hector with the old Pi2 in its SmartiCase, down from the attic after working as a Dump1090 server.<\/figcaption><\/figure>\n

OK, the SD card is now loaded with Raspbian. Lets see how it looks…<\/p>\n

\"abitlateros_1\"<\/a>
Raspian on the touch screen. It worked first time out of the box.<\/figcaption><\/figure>\n

It works beautifully. I plugged in a USB souncard into the hub that is powering everything and used it to hook up to one of my radio receivers. (Note, the Pi-DAC is for high quality audio output only. There is no line in). Forty metres was quite lively so I installed FLDIGI and tuned to the PSK section of the band…<\/p>\n

\"Decoding<\/a>
Decoding PSK31 on forty metres.<\/figcaption><\/figure>\n

It works beautifully. There is no jerkiness or lag on the waterfall display. I had to tweak the microphone level a bit to prevent it overloading. Finally I tried a screen capture on the Pi.<\/p>\n

\"screencapture40mpsk\"<\/a>
DD2MON in a conversation or ‘QSO’ with F4HGE on forty metres PSK31.<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"

Its time to power up the Pi and its touch screen. It is necessary to apply two sources of power, one for the screen and one for the Pi. I bought a suitable cable from SmartiCase at the same time as the case itself. Place the two micro-USB plugs carefully in to the sockets – … Continue reading Trying out the Raspberry Pi Touch-screen<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-427","post","type-post","status-publish","format-standard","hentry","category-raspberry-pi"],"_links":{"self":[{"href":"https:\/\/darkandscary.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/427","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/darkandscary.co.uk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/darkandscary.co.uk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/darkandscary.co.uk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/darkandscary.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=427"}],"version-history":[{"count":4,"href":"https:\/\/darkandscary.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/427\/revisions"}],"predecessor-version":[{"id":439,"href":"https:\/\/darkandscary.co.uk\/index.php?rest_route=\/wp\/v2\/posts\/427\/revisions\/439"}],"wp:attachment":[{"href":"https:\/\/darkandscary.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=427"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/darkandscary.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=427"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/darkandscary.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=427"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}