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add blit to mqtt functions #31

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neonsignal wants to merge 4 commits into from
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add blit to mqtt functions #31

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eab24f7
add npixel and blit to mqtt functions
Jan 24, 2021
b28f716
speed up mqtt blit
Jan 24, 2021
b23685c
select screen in mqtt blit
Jan 24, 2021
2df9fbb
use binascii for base64 conversion
Jan 25, 2021
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20 changes: 20 additions & 0 deletions lib/aiko/oled.py
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,8 @@
# (oled:log This is a test !)
# (oled:pixel x y)
# (oled:text x y This is a test !)
# (oled:blit0 {base64 bits} {base64 bits} ...)
# (oled:blit1 {base64 bits} {base64 bits} ...)
# oled.bg=1; oled.fg=0
#
# Topic: /in (oled:traits)
Expand Down Expand Up @@ -63,6 +65,7 @@
import gc
from machine import Pin
import machine, ssd1306
import binascii

import aiko.common as common

Expand Down Expand Up @@ -234,6 +237,23 @@ def on_oled_message(topic, payload_in):
oleds_show()
return True

if (payload_in.startswith("(oled:blit0 ") or
payload_in.startswith("(oled:blit1 ")):
blit = payload_in[12:-1].split()
out = ord(payload_in[10])-0x30
row = 128//8
image = bytearray(row*len(blit)+2)
padding = "AAAA"
line = 0
for blitline in blit:
bin = binascii.a2b_base64(blitline+padding[(len(blitline)-1)%4+1:])
image[line:len(bin)] = bin
line += row
fbuf = framebuf.FrameBuffer(image, 128, len(blit), framebuf.MONO_HLSB)
oleds[out].blit(fbuf, 0, 0)
oleds_show()
return True

# (oled:text x y message)
if payload_in.startswith("(oled:text "):
tokens = payload_in[11:-1].split()
Expand Down