Add initial files for the HH Hacking 101 - code and infos about board will follow soon

code-snippets/SD_Card_ESP32.py

@@ -0,0 +1,51 @@
+from machine import Pin, SPI
+import machine, sdcard, os, esp32
+
+spi = SPI(2, baudrate=10000000, polarity=0, phase=0, sck=machine.Pin(18), mosi=machine.Pin(23), miso=machine.Pin(19))
+sd = sdcard.SDCard(spi, machine.Pin(5))
+
+os.mount(sd, '/sd')
+
+def print_directory(path, tabs = 0):
+    for file in os.listdir(path):
+        stats = os.stat(path+"/"+file)
+        filesize = stats[6]
+        isdir = stats[0] & 0x4000
+    
+        if filesize < 1000:
+            sizestr = str(filesize) + " byte"
+        elif filesize < 1000000:
+            sizestr = "%0.1f KB" % (filesize/1000)
+        else:
+            sizestr = "%0.1f MB" % (filesize/1000000)
+    
+        prettyprintname = ""
+        for i in range(tabs):
+            prettyprintname += "   "
+        prettyprintname += file
+        if isdir:
+            prettyprintname += "/"
+        print('{0:<40} Size: {1:>10}'.format(prettyprintname, sizestr))
+        
+        # recursively print directory contents
+        if isdir:
+            print_directory(path+"/"+file, tabs+1)
+
+#with open("/sd/test1.txt", "w") as f:
+#    f.write("Hello world!\r\n")
+
+print("Files on filesystem:")
+print("====================")
+print_directory("/sd")
+
+#
+#print("Files on filesystem:")
+#print("====================")
+#print_directory("/sd")
+#
+#with open("/sd/test/test1.txt", "w") as f:
+#    f.write("Hello world!\r\n")
+#
+#print("Files on filesystem:")
+#print("====================")
+#print_directory("/sd/test")