{"id":372,"date":"2017-08-27T12:22:55","date_gmt":"2017-08-27T09:22:55","guid":{"rendered":"http:\/\/allchina.a-lisa.org\/?p=372"},"modified":"2017-11-05T23:22:08","modified_gmt":"2017-11-05T20:22:08","slug":"hmi-%d0%b4%d0%b8%d1%81%d0%bf%d0%bb%d0%b5%d0%b9%d0%bd%d1%8b%d0%b5-%d0%bc%d0%be%d0%b4%d1%83%d0%bb%d0%b8","status":"publish","type":"post","link":"https:\/\/allchina.a-lisa.org\/?p=372","title":{"rendered":"HMI \u0434\u0438\u0441\u043f\u043b\u0435\u0439\u043d\u044b\u0435 \u043c\u043e\u0434\u0443\u043b\u0438"},"content":{"rendered":"

Nextion Instruction Set<\/h1>\n

\u0421\u043e\u0434\u0435\u0440\u0436\u0430\u043d\u0438\u0435<\/h2>\n

<\/p>\n

2 Classification I: Operation Commands of Component and System<\/strong><\/a>\n\n
2.1 page: Refresh page<\/a><\/li>\n
2.2 ref: Refresh component<\/a><\/li>\n
2.3 click: Activate component’s press\/release event<\/a><\/li>\n
2.4 ref_stop: Stop refreshing screen<\/a><\/li>\n
2.5 ref_star: Recover refreshing screen<\/a><\/li>\n
2.6 get: Get variable\/constant value with format<\/a><\/li>\n
2.7 sendme: send current pageID to UART<\/a><\/li>\n
2.8 cov: variable type conversion<\/a><\/li>\n
2.9 touch_j: Touch calibration<\/a><\/li>\n
2.10 substr: Extracts the characters from a string<\/a><\/li>\n
2.11 vis: Hide\/show component<\/a><\/li>\n
2.12 tsw: Enable\/disable component touch function<\/a><\/li>\n
2.13 com_stop: Stop execute instructions from UART<\/a><\/li>\n
2.14 com_star: Execute instructions from UART<\/a><\/li>\n
2.15 randset: Set random value range<\/a><\/li>\n
2.16 code_c: Clear the buffer<\/a><\/li>\n
2.17 print: Get variable variable\/constant value without format<\/a><\/li>\n
2.18 printh: Send hexadecimal string<\/a><\/li>\n
2.19 add: Add data to waveform component<\/a><\/li>\n
2.20 addt: Add data to waveform component in volume<\/a><\/li>\n
2.21 cle: Clear data in waveform component<\/a><\/li>\n
2.22 rest: Reset Nextion device<\/a><\/li>\n
2.23 doevents: Force refresh the screen immediately<\/a><\/li>\n
2.24 strlen: check length of a string<\/a><\/li>\n
2.25 if: if statement<\/a><\/li>\n
2.26 while: while statemet<\/a><\/li>\n
2.27 for: for statemet<\/a><\/li>\n
2.28 repo: read EEPROM — Enhanced Model Only<\/a><\/li>\n
2.29 wepo: write EEPROM — Enhanced Model Only<\/a><\/li>\n
2.30 wept: write data in hex to EEPROM through UART — Enhanced Model Only<\/a><\/li>\n
2.31 rept: read data in hex from EEPROM to UART — Enhanced Model Only<\/a><\/li>\n
2.32 cfgpio: configure GPIO — Enhanced Model Only<\/a><\/li>\n<\/ul>\n<\/li>\n
3 Classification II: GUI Designing Command<\/strong><\/a>\n\n
3.1 cls: clear the screen<\/a><\/li>\n
3.2 pic: display picutres<\/a><\/li>\n
3.3 picq: Crop picture<\/a><\/li>\n
3.4 xpic: Advanced crop picture<\/a><\/li>\n
3.5 xstr: Print string on the device<\/a><\/li>\n
3.6 fill x, y, w, h, color<\/a><\/li>\n
3.7 line x, y, x2, y2, color<\/a><\/li>\n
3.8 draw x, y, x2, y2, color<\/a><\/li>\n
3.9 cir x, y, r, color<\/a><\/li>\n
3.10 cirs x, y, r, color<\/a><\/li>\n<\/ul>\n<\/li>\n
4 Nextion HMI: System Variables List<\/strong><\/a><\/li>\n
5 Nextion HMI: Color Code List<\/strong><\/a><\/li>\n
6 Format of Device Return Data<\/strong><\/a><\/li>\n
7 Useful link<\/a><\/li>\n<\/ul>\n
Note:<\/strong><\/h2>\n
1. The instruction is end with three bytes «0xff 0xff 0xff»<\/p>\n
2. All the instrucitons and parametners are in ASCII<\/strong><\/p>\n
3. All the instrucitons are in lowercase letters<\/strong><\/p>\n
Classification I: Operation Commands of Component and System<\/strong><\/h2>\n
page: Refresh page<\/h3>\n
page pageid<\/p>\n
pageid: Page ID or Page Name<\/p>\n
\n
Example 1:<\/li>\n<\/ul>\n
page 0 \/\/Refresh page 0<\/pre>\n
\n
Example 2:<\/li>\n<\/ul>\n
page main \/\/Refresh the page main<\/pre>\n
Remarks:<\/p>\n
The device automatically refresh page 0 when power on.<\/p>\n","protected":false},"excerpt":{"rendered":"
Nextion Instruction Set \u0421\u043e\u0434\u0435\u0440\u0436\u0430\u043d\u0438\u0435<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[98,9,46],"tags":[],"class_list":["post-372","post","type-post","status-publish","format-standard","hentry","category-arduino","category-vsiashina","category-46"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p7OYvE-60","_links":{"self":[{"href":"https:\/\/allchina.a-lisa.org\/index.php?rest_route=\/wp\/v2\/posts\/372","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/allchina.a-lisa.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/allchina.a-lisa.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/allchina.a-lisa.org\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/allchina.a-lisa.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=372"}],"version-history":[{"count":1,"href":"https:\/\/allchina.a-lisa.org\/index.php?rest_route=\/wp\/v2\/posts\/372\/revisions"}],"predecessor-version":[{"id":389,"href":"https:\/\/allchina.a-lisa.org\/index.php?rest_route=\/wp\/v2\/posts\/372\/revisions\/389"}],"wp:attachment":[{"href":"https:\/\/allchina.a-lisa.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=372"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/allchina.a-lisa.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=372"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/allchina.a-lisa.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=372"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}