72 lines
2.0 KiB
Lua
72 lines
2.0 KiB
Lua
--Affiche simplement un Hello Wolrd sur le display OLED
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print("\nDémarrage hv20180720.1616 \n")
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-- Utilisation :
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-- pin_sda = 5
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-- pin_scl = 6
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-- disp_sla = 0x3c
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-- _dofile("i2c_display")
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-- disp_add_data(texte)
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-- avec texte un json du type
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-- texte = '{ "id": "id_du_texte",
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-- "column": [0-20], (si omis : 0)
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-- "row": [0-5], (si omis : 0)
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-- "text": "abcdef", (si omis : "")
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-- "angle": [0,90,180,270] }' (si omis 0°)
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--
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-- disp_add_data('{"id":"id_du_texte"}') efface le texte
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-------------------------------------------------
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-- Modules nécessaires dans le firmware :
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-- i2c, u8g(avec font ssd1306_128x64_i2c), cjson
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-------------------------------------------------
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pin_sda = 12
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pin_scl = 11
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disp_sla = 0x3c
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function init_OLED(sda, scl) --Set up the u8glib lib
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i2c.setup(0, sda, scl, i2c.SLOW)
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disp = u8g.ssd1306_128x64_i2c(disp_sla)
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-- https://github.com/olikraus/u8glib/wiki/fontsize
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disp:setFont(u8g.font_6x10)
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disp:setFontRefHeightExtendedText()
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disp:setDefaultForegroundColor()
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disp:setFontPosTop()
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end
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function draw()
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disp:drawStr(0,0,"Hello Hugo !")
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disp:drawStr(0,11,"et zuzu !")
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end
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init_OLED(pin_sda, pin_scl) --Run setting up
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disp:firstPage()
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repeat
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draw()
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until disp:nextPage() == false
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--print( string.gsub("hello+zuzu+%26+une+belle+%E9cole%5Cun+b%E2teau","+"," ")
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--[[ source OLED:
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https://www.google.ch/search?q=nodemcu+lua+oled+display&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjG8ba8ra3cAhVDCpoKHedlDS4Q_AUICigB&biw=1536&bih=828
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https://www.hackster.io/kayakpete/esp8266-oled-display-52ae50
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http://blog.rl.cx/2017/01/08/bien-d%C3%A9buter-avec-nodemcu/
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https://github.com/FredThx/nodemcu_iot/blob/master/i2c_display.lua
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https://www.instructables.com/id/NODEMCU-LUA-ESP8266-With-I2C-LCD-128-X-64-OLED-Dis/
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]]
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