I have had no luck getting a WaveShare 2.9" ePaper display to even clear so think that I am having an issue with hardware. I have code running (a cut down "test.py" from the examples on this GitHub) and have no errors or exceptions, everything initializes OK. I have no display though!
Has anybody managed to understand the pin definitions for this chip and has anybody managed to operate the SPI interface? I would love to know what hardware pins and definitions you are using, it is like i have a very basic wiring issue!
This may help?
Code: Select all
import epaper2in9, framebuf
from machine import SPI, Pin
print("MAIN: begins here")
# SPI0 on W600_Pico
spi = SPI(0, baudrate=100000, polarity=1, phase=0, sck=Pin(Pin.PB_16), miso=Pin(Pin.PB_17), mosi=Pin(Pin.PB_18))
cs = Pin(Pin.PB_15)
dc = Pin(Pin.PB_07)
rst = Pin(Pin.PB_08)
busy = Pin(Pin.PB_09)
e = epaper2in9.EPD(spi, cs, dc, rst, busy)
e.init()Code: Select all
>>> import machine
>>> help(machine.Pin)
object <class 'Pin'> is of type type
init -- <function>
value -- <function>
irq -- <function>
OPEN_DRAIN -- 1
IN -- 1
OUT -- 0
PULL_UP -- 1
PULL_DOWN -- 2
PULL_FLOATING -- 0
IRQ_DOUBLE_EDGE -- 2
IRQ_RISING -- 0
IRQ_FALLING -- 1
IRQ_HIGH_LEVEL -- 3
IRQ_LOW_LEVEL -- 4
PA_00 -- 0
PA_01 -- 1
PA_02 -- 2
PA_03 -- 3
PA_04 -- 4
PA_05 -- 5
PA_06 -- 6
PA_07 -- 7
PA_08 -- 8
PA_09 -- 9
PA_10 -- 10
PA_11 -- 11
PA_12 -- 12
PA_13 -- 13
PA_14 -- 14
PA_15 -- 15
PB_00 -- 16
PB_01 -- 17
PB_02 -- 18
PB_03 -- 19
PB_04 -- 20
PB_05 -- 21
PB_06 -- 22
PB_07 -- 23
PB_08 -- 24
PB_09 -- 25
PB_10 -- 26
PB_11 -- 27
PB_12 -- 28
PB_13 -- 29
PB_14 -- 30
PB_15 -- 31
PB_16 -- 32
PB_17 -- 33
PB_18 -- 34
PB_19 -- 35
PB_20 -- 36
PB_21 -- 37
PB_22 -- 38
PB_23 -- 39
PB_24 -- 40
PB_25 -- 41
PB_26 -- 42
PB_27 -- 43
PB_28 -- 44
PB_29 -- 45
PB_30 -- 46
PB_31 -- 47Garry