Initial scaffold: NixOS + SvelteKit dashboard + Python renderer

2026-06-07 18:15:06 +02:00
commit 50256fa384
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+# /*****************************************************************************
+# * | File        :	  epdconfig.py
+# * | Author      :   Waveshare electrices
+# * | Function    :   Hardware underlying interface
+# * | Info        :
+# *----------------
+# * |	This version:   V1.0
+# * | Date        :   2019-11-01
+# * | Info        :   
+# ******************************************************************************/
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+import time
+import os
+import logging
+import sys
+
+from ctypes import *
+
+EPD_SCK_PIN   =11
+EPD_MOSI_PIN  =10
+
+EPD_M1_CS_PIN  =8
+EPD_S1_CS_PIN  =7
+EPD_M2_CS_PIN  =17
+EPD_S2_CS_PIN  =18
+
+EPD_M1S1_DC_PIN  =13
+EPD_M2S2_DC_PIN  =22
+
+EPD_M1S1_RST_PIN =6
+EPD_M2S2_RST_PIN =23
+
+EPD_M1_BUSY_PIN  =5
+EPD_S1_BUSY_PIN  =19
+EPD_M2_BUSY_PIN  =27
+EPD_S2_BUSY_PIN  =24
+
+find_dirs = [
+    os.path.dirname(os.path.realpath(__file__)),
+    '/usr/local/lib',
+    '/usr/lib',
+]
+spi = None
+for find_dir in find_dirs:
+    val = int(os.popen('getconf LONG_BIT').read())
+    logging.debug("System is %d bit"%val)
+    if val == 64:
+        so_filename = os.path.join(find_dir, 'DEV_Config_64.so')
+    else:
+        so_filename = os.path.join(find_dir, 'DEV_Config_32.so')
+    if os.path.exists(so_filename):
+        spi = CDLL(so_filename)
+        break
+if spi is None:
+    RuntimeError('Cannot find DEV_Config.so')
+
+def digital_write(pin, value):
+    spi.DEV_Digital_Write(pin, value)
+
+def digital_read(pin):
+    return spi.DEV_Digital_Read(pin)
+
+def spi_writebyte(value): 
+    spi.DEV_SPI_WriteByte(value)
+ 
+def delay_ms(delaytime):
+    time.sleep(delaytime / 1000.0)
+        
+def module_init():
+    spi.DEV_ModuleInit()
+
+def module_exit():
+    spi.DEV_ModuleExit()
+
+
+def spi_readbyte(Reg):
+    return spi.DEV_SPI_ReadByte(Reg)
+    
+def delay_ms(delaytime):
+    time.sleep(delaytime / 1000.0)
+
+