65 lines
1.4 KiB
Lua
65 lines
1.4 KiB
Lua
|
|
-- setup I2c and connect display
|
|
function init_i2c_display()
|
|
sda = 5
|
|
scl = 6
|
|
sla = 0x3c
|
|
i2c.setup(0, sda, scl, i2c.SLOW)
|
|
disp = u8g.ssd1306_128x64_i2c(sla)
|
|
end
|
|
|
|
-- the draw() routine
|
|
function draw()
|
|
disp:setFont(u8g.font_6x10)
|
|
disp:drawStr( 0+0, 20+0, "Hello!")
|
|
disp:drawStr( 0+2, 20+16, "Hello!")
|
|
|
|
disp:drawBox(0, 0, 3, 3)
|
|
disp:drawBox(disp:getWidth()-6, 0, 6, 6)
|
|
disp:drawBox(disp:getWidth()-9, disp:getHeight()-9, 9, 9)
|
|
disp:drawBox(0, disp:getHeight()-12, 12, 12)
|
|
end
|
|
|
|
|
|
function rotate()
|
|
if (next_rotation < tmr.now() / 1000) then
|
|
if (dir == 0) then
|
|
disp:undoRotation()
|
|
elseif (dir == 1) then
|
|
disp:setRot90()
|
|
elseif (dir == 2) then
|
|
disp:setRot180()
|
|
elseif (dir == 3) then
|
|
disp:setRot270()
|
|
end
|
|
|
|
dir = dir + 1
|
|
dir = bit.band(dir, 3)
|
|
next_rotation = tmr.now() / 1000 + 1000
|
|
end
|
|
end
|
|
|
|
function rotation_test()
|
|
init_i2c_display()
|
|
|
|
print("--- Starting Rotation Test ---")
|
|
dir = 0
|
|
next_rotation = 0
|
|
|
|
local loopcnt
|
|
for loopcnt = 1, 100, 1 do
|
|
rotate()
|
|
|
|
disp:firstPage()
|
|
repeat
|
|
draw(draw_state)
|
|
until disp:nextPage() == false
|
|
|
|
tmr.wdclr()
|
|
end
|
|
|
|
print("--- Rotation Test done ---")
|
|
end
|
|
|
|
rotation_test()
|