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Update epd2in7.py

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New flag & if condition to track if the display has been initialized &
avoid repeated initialization and accumulation of File descriptors  & system crash.
This commit is contained in:
infinition
2024-11-19 23:41:21 +01:00
committed by GitHub
parent 119dd19b07
commit 40c2c53c93
1 changed files with 5 additions and 5 deletions
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10
resources/waveshare_epd/epd2in7.py
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@@ -43,6 +43,7 @@ logger = logging.getLogger(__name__)
class EPD: class EPD:
def __init__(self): def __init__(self):
self.is_initialized = False # New flag to track if the display has been initialized #INFINITION
self.reset_pin = epdconfig.RST_PIN self.reset_pin = epdconfig.RST_PIN
self.dc_pin = epdconfig.DC_PIN self.dc_pin = epdconfig.DC_PIN
self.busy_pin = epdconfig.BUSY_PIN self.busy_pin = epdconfig.BUSY_PIN
@@ -222,11 +223,10 @@ class EPD:
self.send_data(self.gray_lut_ww[count]) self.send_data(self.gray_lut_ww[count])
def init(self): def init(self):
if (epdconfig.module_init() != 0): if not self.is_initialized: # Avoid repeated initialization and accumulation of File descriptors #INFINITION
return -1 if epdconfig.module_init() != 0:
return -1
# EPD hardware init start self.reset()
self.reset()
self.send_command(0x01) # POWER_SETTING self.send_command(0x01) # POWER_SETTING
self.send_data(0x03) # VDS_EN, VDG_EN self.send_data(0x03) # VDS_EN, VDG_EN