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improve u8g lua examples

This commit is contained in:
devsaurus 2015-09-24 23:18:34 +02:00
parent f5ae0ed7c7
commit 4e235d8461
2 changed files with 142 additions and 124 deletions
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63
lua_examples/u8glib/u8g_bitmaps.lua
View File

@ -61,35 +61,46 @@ function draw(draw_state)
end end
function bitmap_test(delay) function bitmap_test()
-- read XBM picture dir = 0
file.open("u8glib_logo.xbm", "r") next_rotation = 0
xbm_data = file.read()
file.close()
-- read Bitmap picture disp:firstPage()
file.open("u8g_rook.bm", "r") repeat
bm_data = file.read() draw(draw_state)
file.close() until disp:nextPage() == false
print("--- Starting Bitmap Test ---") if (draw_state <= 7 + 1*8) then
dir = 0 draw_state = draw_state + 1
next_rotation = 0 else
print("--- Restarting Bitmap Test ---")
draw_state = 1
end
local draw_state print("Heap: " .. node.heap())
for draw_state = 1, 7 + 1*8, 1 do -- retrigger timer to give room for system housekeeping
disp:firstPage() tmr.start(0)
repeat
draw(draw_state)
until disp:nextPage() == false
tmr.delay(delay)
tmr.wdclr()
end
print("--- Bitmap Test done ---")
end end
--init_i2c_display() draw_state = 1
init_spi_display()
bitmap_test(50000) init_i2c_display()
--init_spi_display()
-- read XBM picture
file.open("u8glib_logo.xbm", "r")
xbm_data = file.read()
file.close()
-- read Bitmap picture
file.open("u8g_rook.bm", "r")
bm_data = file.read()
file.close()
-- set up timer 0 with short interval, will be retriggered in graphics_test()
tmr.register(0, 100, tmr.ALARM_SEMI, function() bitmap_test() end)
print("--- Starting Bitmap Test ---")
tmr.start(0)

203
lua_examples/u8glib/u8g_graphics_test.lua
View File

@ -11,148 +11,155 @@
-- setup I2c and connect display -- setup I2c and connect display
function init_i2c_display() function init_i2c_display()
-- SDA and SCL can be assigned freely to available GPIOs -- SDA and SCL can be assigned freely to available GPIOs
local sda = 5 -- GPIO14 local sda = 5 -- GPIO14
local scl = 6 -- GPIO12 local scl = 6 -- GPIO12
local sla = 0x3c local sla = 0x3c
i2c.setup(0, sda, scl, i2c.SLOW) i2c.setup(0, sda, scl, i2c.SLOW)
disp = u8g.ssd1306_128x64_i2c(sla) disp = u8g.ssd1306_128x64_i2c(sla)
end end
-- setup SPI and connect display -- setup SPI and connect display
function init_spi_display() function init_spi_display()
-- Hardware SPI CLK = GPIO14 -- Hardware SPI CLK = GPIO14
-- Hardware SPI MOSI = GPIO13 -- Hardware SPI MOSI = GPIO13
-- Hardware SPI MISO = GPIO12 (not used) -- Hardware SPI MISO = GPIO12 (not used)
-- CS, D/C, and RES can be assigned freely to available GPIOs -- CS, D/C, and RES can be assigned freely to available GPIOs
local cs = 8 -- GPIO15, pull-down 10k to GND local cs = 8 -- GPIO15, pull-down 10k to GND
local dc = 4 -- GPIO2 local dc = 4 -- GPIO2
local res = 0 -- GPIO16 local res = 0 -- GPIO16
spi.setup(1, spi.MASTER, spi.CPOL_LOW, spi.CPHA_LOW, spi.DATABITS_8, 0) spi.setup(1, spi.MASTER, spi.CPOL_LOW, spi.CPHA_LOW, spi.DATABITS_8, 0)
disp = u8g.ssd1306_128x64_hw_spi(cs, dc, res) disp = u8g.ssd1306_128x64_hw_spi(cs, dc, res)
end end
-- graphic test components -- graphic test components
function prepare() function prepare()
disp:setFont(u8g.font_6x10) disp:setFont(u8g.font_6x10)
disp:setFontRefHeightExtendedText() disp:setFontRefHeightExtendedText()
disp:setDefaultForegroundColor() disp:setDefaultForegroundColor()
disp:setFontPosTop() disp:setFontPosTop()
end end
function box_frame(a) function box_frame(a)
disp:drawStr(0, 0, "drawBox") disp:drawStr(0, 0, "drawBox")
disp:drawBox(5, 10, 20, 10) disp:drawBox(5, 10, 20, 10)
disp:drawBox(10+a, 15, 30, 7) disp:drawBox(10+a, 15, 30, 7)
disp:drawStr(0, 30, "drawFrame") disp:drawStr(0, 30, "drawFrame")
disp:drawFrame(5, 10+30, 20, 10) disp:drawFrame(5, 10+30, 20, 10)
disp:drawFrame(10+a, 15+30, 30, 7) disp:drawFrame(10+a, 15+30, 30, 7)
end end
function disc_circle(a) function disc_circle(a)
disp:drawStr(0, 0, "drawDisc") disp:drawStr(0, 0, "drawDisc")
disp:drawDisc(10, 18, 9) disp:drawDisc(10, 18, 9)
disp:drawDisc(24+a, 16, 7) disp:drawDisc(24+a, 16, 7)
disp:drawStr(0, 30, "drawCircle") disp:drawStr(0, 30, "drawCircle")
disp:drawCircle(10, 18+30, 9) disp:drawCircle(10, 18+30, 9)
disp:drawCircle(24+a, 16+30, 7) disp:drawCircle(24+a, 16+30, 7)
end end
function r_frame(a) function r_frame(a)
disp:drawStr(0, 0, "drawRFrame/Box") disp:drawStr(0, 0, "drawRFrame/Box")
disp:drawRFrame(5, 10, 40, 30, a+1) disp:drawRFrame(5, 10, 40, 30, a+1)
disp:drawRBox(50, 10, 25, 40, a+1) disp:drawRBox(50, 10, 25, 40, a+1)
end end
function stringtest(a) function stringtest(a)
disp:drawStr(30+a, 31, " 0") disp:drawStr(30+a, 31, " 0")
disp:drawStr90(30, 31+a, " 90") disp:drawStr90(30, 31+a, " 90")
disp:drawStr180(30-a, 31, " 180") disp:drawStr180(30-a, 31, " 180")
disp:drawStr270(30, 31-a, " 270") disp:drawStr270(30, 31-a, " 270")
end end
function line(a) function line(a)
disp:drawStr(0, 0, "drawLine") disp:drawStr(0, 0, "drawLine")
disp:drawLine(7+a, 10, 40, 55) disp:drawLine(7+a, 10, 40, 55)
disp:drawLine(7+a*2, 10, 60, 55) disp:drawLine(7+a*2, 10, 60, 55)
disp:drawLine(7+a*3, 10, 80, 55) disp:drawLine(7+a*3, 10, 80, 55)
disp:drawLine(7+a*4, 10, 100, 55) disp:drawLine(7+a*4, 10, 100, 55)
end end
function triangle(a) function triangle(a)
local offset = a local offset = a
disp:drawStr(0, 0, "drawTriangle") disp:drawStr(0, 0, "drawTriangle")
disp:drawTriangle(14,7, 45,30, 10,40) disp:drawTriangle(14,7, 45,30, 10,40)
disp:drawTriangle(14+offset,7-offset, 45+offset,30-offset, 57+offset,10-offset) disp:drawTriangle(14+offset,7-offset, 45+offset,30-offset, 57+offset,10-offset)
disp:drawTriangle(57+offset*2,10, 45+offset*2,30, 86+offset*2,53) disp:drawTriangle(57+offset*2,10, 45+offset*2,30, 86+offset*2,53)
disp:drawTriangle(10+offset,40+offset, 45+offset,30+offset, 86+offset,53+offset) disp:drawTriangle(10+offset,40+offset, 45+offset,30+offset, 86+offset,53+offset)
end end
function ascii_1() function ascii_1()
local x, y, s local x, y, s
disp:drawStr(0, 0, "ASCII page 1") disp:drawStr(0, 0, "ASCII page 1")
for y = 0, 5, 1 do for y = 0, 5, 1 do
for x = 0, 15, 1 do for x = 0, 15, 1 do
s = y*16 + x + 32 s = y*16 + x + 32
disp:drawStr(x*7, y*10+10, string.char(s)) disp:drawStr(x*7, y*10+10, string.char(s))
end end
end end
end end
function extra_page(a) function extra_page(a)
disp:drawStr(0, 12, "setScale2x2") disp:drawStr(0, 12, "setScale2x2")
disp:setScale2x2() disp:setScale2x2()
disp:drawStr(0, 6+a, "setScale2x2") disp:drawStr(0, 6+a, "setScale2x2")
disp:undoScale() disp:undoScale()
end end
-- the draw() routine -- the draw() routine
function draw(draw_state) function draw(draw_state)
local component = bit.rshift(draw_state, 3) local component = bit.rshift(draw_state, 3)
prepare() prepare()
if (component == 0) then if (component == 0) then
box_frame(bit.band(draw_state, 7)) box_frame(bit.band(draw_state, 7))
elseif (component == 1) then elseif (component == 1) then
disc_circle(bit.band(draw_state, 7)) disc_circle(bit.band(draw_state, 7))
elseif (component == 2) then elseif (component == 2) then
r_frame(bit.band(draw_state, 7)) r_frame(bit.band(draw_state, 7))
elseif (component == 3) then elseif (component == 3) then
stringtest(bit.band(draw_state, 7)) stringtest(bit.band(draw_state, 7))
elseif (component == 4) then elseif (component == 4) then
line(bit.band(draw_state, 7)) line(bit.band(draw_state, 7))
elseif (component == 5) then elseif (component == 5) then
triangle(bit.band(draw_state, 7)) triangle(bit.band(draw_state, 7))
elseif (component == 6) then elseif (component == 6) then
ascii_1() ascii_1()
elseif (component == 7) then elseif (component == 7) then
extra_page(bit.band(draw_state, 7)) extra_page(bit.band(draw_state, 7))
end end
end end
function graphics_test(delay) function graphics_test()
print("--- Starting Graphics Test ---")
-- cycle through all components disp:firstPage()
local draw_state repeat
for draw_state = 0, 7 + 8*8, 1 do draw(draw_state)
disp:firstPage() until disp:nextPage() == false
repeat
draw(draw_state)
until disp:nextPage() == false
--print(node.heap())
tmr.delay(delay)
-- re-trigger Watchdog!
tmr.wdclr()
end
print("--- Graphics Test done ---") if (draw_state <= 7 + 8*8) then
draw_state = draw_state + 1
else
print("--- Restarting Graphics Test ---")
draw_state = 0
end
print("Heap: " .. node.heap())
-- retrigger timer to give room for system housekeeping
tmr.start(0)
end end
--init_i2c_display() draw_state = 0
init_spi_display()
graphics_test(50000) init_i2c_display()
--init_spi_display()
-- set up timer 0 with short interval, will be retriggered in graphics_test()
tmr.register(0, 100, tmr.ALARM_SEMI, function() graphics_test() end)
print("--- Starting Graphics Test ---")
tmr.start(0)