{"id":25277,"date":"2018-10-09T09:53:35","date_gmt":"2018-10-09T16:53:35","guid":{"rendered":"https:\/\/blog.digilentinc.com\/?p=25277"},"modified":"2021-06-09T13:51:52","modified_gmt":"2021-06-09T20:51:52","slug":"analog-discovery-2-communicates-with-arduino","status":"publish","type":"post","link":"https:\/\/digilent.com\/blog\/analog-discovery-2-communicates-with-arduino\/","title":{"rendered":"Analog Discovery 2 Communicates with Arduino"},"content":{"rendered":"

Recently, for a project I was doing, I wanted to use the Analog Discovery 2<\/a> to help intelligently interpret live audio and send the data to LED strips controlled by an Arduino. However, in order to do this, I would need WaveForms<\/a> to have some way to talk to the Arduino. After exploring some options on my own, I turned to the Digilent Forum\u00a0<\/a>and posted the following question.<\/p>\n

\"\"
I am trying to send oscilloscope data from the Analog Discovery 2 to the Arduino Uno. Would there be a way I could do this so that the Arduino could read it in live time?<\/figcaption><\/figure>\n

Before I knew it I had a solution proposed to me by attila, a Technical Forum Moderator and WaveForms software developer. He suggested using the Python libraries in WaveForms SDK by doing the following:<\/p>\n

You could use the WaveForms SDK.\u00a0Starting with the AnalogIn_Record_int16.py or\u00a0AnalogIn_Record.py\u00a0example\u00a0script and modifying it to send the data chunks from the record loop to the desired protocol (like COM),\u00a0or using the device DIO (see Digital_Spi.py, Digital_Uart.py, Digital_I2c.py)
\nThe examples are located in the following path: C:\/Program Files (x86)\/Digilent\/WaveFormsSDK\/samples\/py\/
\n\"image.png.0f88183b5798f461989d6d3eda2669f5.png\"<\/a><\/p><\/blockquote>\n

He also suggested that I could also send acquisition data over SPI with a custom script in the script editor like the one shown below:<\/p>\n

\"image.thumb.png.9cd9a4660b5dd7cc9882b195e71307c7.png\"<\/a><\/p>\n

Scope1.<\/span>run<\/span>()<\/span>\r\nwhile<\/span>(<\/span>Scope1.<\/span>wait<\/span>()){<\/span>\r\n    var<\/span> rg16 <\/span>=<\/span> []<\/span>\r\n    var<\/span> r <\/span>=<\/span> Scope1.<\/span>Channel1.<\/span>Range.<\/span>value\r\n    <\/span>var<\/span> o <\/span>=<\/span> Scope1.<\/span>Channel1.<\/span>Offset.<\/span>value\r\n    <\/span>\/\/ convert float to 16bit integer<\/span>\r\n    Scope1.<\/span>Channel1.<\/span>alldata<\/span>.<\/span>forEach<\/span>(<\/span>function<\/span>(<\/span>v<\/span>){<\/span>\r\n        rg16<\/span>.<\/span>push<\/span>(<\/span>max<\/span>(-<\/span>32768<\/span>,<\/span> min<\/span>(<\/span>32767<\/span>,<\/span> v<\/span>*<\/span>32768<\/span>\/<\/span>r<\/span>+<\/span>o<\/span>)))<\/span>\r\n    })<\/span>\r\n    Protocol.<\/span>SPI<\/span>.<\/span>Start()<\/span>\r\n    if<\/span>(!<\/span>Protocol.<\/span>SPI<\/span>.<\/span>Write(<\/span>16<\/span>,<\/span> rg16<\/span>))<\/span> break<\/span>\r\n    Protocol.<\/span>SPI<\/span>.<\/span>Stop()<\/span>\r\n}<\/span><\/pre>\n
 <\/p>\n
For the design I am working on, this communication is essential, as I am basically using the Analog Discovery 2 as an advanced sound sensor. Since my current setup involves manipulating the data from WaveForms in the Arduino IDE, I am going to experiment with attila’s suggested option of using the AnalogIn_Record example scripts to send to the COM port that the Arduino is on.<\/p>\n
Stay tuned for updates on this project as well as how to use the Analog Discovery 2 with Arduino!<\/p>\n
-1<\/span><\/a><\/div><\/div> 
<\/div><\/div>
<\/div>","protected":false},"excerpt":{"rendered":"
Learn how to make Analog Discovery 2 communicate with Arduino using WaveForms!<\/p>\n","protected":false},"author":36,"featured_media":25321,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[4327,4312],"tags":[452],"ppma_author":[4485],"class_list":["post-25277","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-projects","category-usb-scopes-analyzers-generators","tag-waveforms"],"jetpack_featured_media_url":"https:\/\/digilent.com\/blog\/wp-content\/uploads\/2018\/08\/finally-e1534524676672.png","authors":[{"term_id":4485,"user_id":36,"is_guest":0,"slug":"mirandamay7","display_name":"Miranda Hansen","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/bcab037c32924b9f9b3ca4898e179f2764cb7d9a82aa2bd475170c8aaa884e1c?s=96&d=mm&r=g","1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":"","9":"","10":""}],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/digilent.com\/blog\/wp-json\/wp\/v2\/posts\/25277","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/digilent.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/digilent.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/digilent.com\/blog\/wp-json\/wp\/v2\/users\/36"}],"replies":[{"embeddable":true,"href":"https:\/\/digilent.com\/blog\/wp-json\/wp\/v2\/comments?post=25277"}],"version-history":[{"count":0,"href":"https:\/\/digilent.com\/blog\/wp-json\/wp\/v2\/posts\/25277\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/digilent.com\/blog\/wp-json\/wp\/v2\/media\/25321"}],"wp:attachment":[{"href":"https:\/\/digilent.com\/blog\/wp-json\/wp\/v2\/media?parent=25277"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/digilent.com\/blog\/wp-json\/wp\/v2\/categories?post=25277"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/digilent.com\/blog\/wp-json\/wp\/v2\/tags?post=25277"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/digilent.com\/blog\/wp-json\/wp\/v2\/ppma_author?post=25277"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}