As I stated in the previous post, the readings of this sensor take a lot of work to setup. You have to get a reading at each direction and then split the difference between them to get a high and low. Somewhere I have an excel file that I use to do all the calculations and print out the code. I’ll load it here if\/when I find it. <\/p>\n
To use this, you will need to place an include in your python program: <\/p>\n
Then when you want to get the value, you call the function with your ADC reading:<\/p>\n The annoying part of this is setting up this file. All it does is take your reading and see where it falls within the table of max & min values established through testing:<\/p>\n wind_dir_high_NNE=962 def wind_dir(amt): return wind_direction<\/p>\n <\/code><\/p>\n As you can see from the above, I get all the way down to the minor directions such as “NNE” & “ESE”, etc. You can change it to suit your needs. <\/p>\n","protected":false},"excerpt":{"rendered":" As I stated in the previous post, the readings of this sensor take a lot of work to setup. You have to get a reading at each direction and then split the difference between them to get a high and low. Somewhere I have an excel file that I use to do all the calculations […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3,2,7],"tags":[],"_links":{"self":[{"href":"http:\/\/blog.cup-of-joe.me\/index.php?rest_route=\/wp\/v2\/posts\/256"}],"collection":[{"href":"http:\/\/blog.cup-of-joe.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blog.cup-of-joe.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blog.cup-of-joe.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/blog.cup-of-joe.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=256"}],"version-history":[{"count":1,"href":"http:\/\/blog.cup-of-joe.me\/index.php?rest_route=\/wp\/v2\/posts\/256\/revisions"}],"predecessor-version":[{"id":257,"href":"http:\/\/blog.cup-of-joe.me\/index.php?rest_route=\/wp\/v2\/posts\/256\/revisions\/257"}],"wp:attachment":[{"href":"http:\/\/blog.cup-of-joe.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=256"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blog.cup-of-joe.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=256"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blog.cup-of-joe.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=256"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}from wind_dir import wind_dir<\/code><\/p>\nwind_direction = wind_dir(wind_dir_read)<\/code><\/p>\n
\n#!\/usr\/bin\/env python<\/p>\n
\nwind_dir_high_NE=937
\nwind_dir_high_ENE=885
\nwind_dir_high_E=839
\nwind_dir_high_ESE=798
\nwind_dir_high_SE=760
\nwind_dir_high_SSE=726
\nwind_dir_high_S=695
\nwind_dir_high_SSW=667
\nwind_dir_high_SW=641
\nwind_dir_high_WSW=616
\nwind_dir_high_W=593
\nwind_dir_high_WNW=571
\nwind_dir_high_NW=550
\nwind_dir_high_NNW=535
\nwind_dir_low_NNE=935
\nwind_dir_low_NE=884
\nwind_dir_low_ENE=838
\nwind_dir_low_E=797
\nwind_dir_low_ESE=759
\nwind_dir_low_SE=725
\nwind_dir_low_SSE=694
\nwind_dir_low_S=666
\nwind_dir_low_SSW=640
\nwind_dir_low_SW=615
\nwind_dir_low_WSW=592
\nwind_dir_low_W=570
\nwind_dir_low_WNW=549
\nwind_dir_low_NW=534
\nwind_dir_low_NNW=527<\/p>\n
\n if amt <= wind_dir_high_NNE and amt >= wind_dir_low_NNE:
\n\t\twind_direction = 'NNE'
\n\telif amt <= wind_dir_high_NE and amt >= wind_dir_low_NE:
\n\t\twind_direction = 'NE'
\n elif amt <= wind_dir_high_ENE and amt >= wind_dir_low_ENE:
\n wind_direction = 'ENE'
\n elif amt <= wind_dir_high_E and amt >= wind_dir_low_E:
\n wind_direction = 'E'
\n elif amt <= wind_dir_high_ESE and amt >= wind_dir_low_ESE:
\n wind_direction = 'ESE'
\n elif amt <= wind_dir_high_SE and amt >= wind_dir_low_SE:
\n wind_direction = 'SE'
\n elif amt <= wind_dir_high_SSE and amt >= wind_dir_low_SSE:
\n wind_direction = 'SSE'
\n elif amt <= wind_dir_high_S and amt >= wind_dir_low_S:
\n wind_direction = 'S'
\n elif amt <= wind_dir_high_SSW and amt >= wind_dir_low_SSW:
\n wind_direction = 'SSW'
\n elif amt <= wind_dir_high_SW and amt >= wind_dir_low_SW:
\n wind_direction = 'SW'
\n elif amt <= wind_dir_high_WSW and amt >= wind_dir_low_WSW:
\n wind_direction = 'WSW'
\n elif amt <= wind_dir_high_W and amt >= wind_dir_low_W:
\n wind_direction = 'W'
\n elif amt <= wind_dir_high_WNW and amt >= wind_dir_low_WNW:
\n wind_direction = 'WNW'
\n elif amt <= wind_dir_high_NW and amt >= wind_dir_low_NW:
\n wind_direction = 'NW'
\n elif amt <= wind_dir_high_NNW and amt >= wind_dir_low_NNW:
\n wind_direction = 'NNW'
\n\telse:
\n\t\twind_direction = 'N'<\/p>\n