Add recording, update poznamky.

download/smelko/cvicenie4.txt

 #include "funshield.h"
 
-constexpr int digit_positions = 4;
+constexpr int digit_positions = sizeof(digit_muxpos) / sizeof(digit_muxpos[0]);
 
 void writeGlyphBitmask( byte glyph, byte pos_bitmask) {
   digitalWrite( latch_pin, LOW);
@@ -77,3 +77,67 @@ void loop() {
 
   writeDigit(citac, pozicia);
 }
+###################################SERIAL READ###################################
+#include "funshield.h"
+
+constexpr int digit_positions = sizeof(digit_muxpos) / sizeof(digit_muxpos[0]);
+
+void writeGlyphBitmask( byte glyph, byte pos_bitmask) {
+  digitalWrite( latch_pin, LOW);
+  shiftOut( data_pin, clock_pin, MSBFIRST, glyph);
+  shiftOut( data_pin, clock_pin, MSBFIRST, pos_bitmask);
+  digitalWrite( latch_pin, HIGH);
+}
+
+void writeGlyphR(byte glyph, int pos)
+{
+  writeGlyphBitmask(glyph, digit_muxpos[digit_positions - pos - 1]);
+}
+
+void writeGlyphL(byte glyph, int pos)
+{
+  writeGlyphBitmask(glyph, digit_muxpos[pos]);
+}
+
+void writeDigit(int n, int pos)
+{
+  writeGlyphR(digits[n], pos);
+}
+
+void setup() {
+  Serial.begin(9600);
+  pinMode(latch_pin, OUTPUT);
+  pinMode(data_pin, OUTPUT);
+  pinMode(clock_pin, OUTPUT);
+}
+
+void loop() {
+  if (Serial.available() > 0)
+  {
+    int incomingByte = Serial.read();
+    int cislo = incomingByte - '0';
+    Serial.println(cislo);
+    writeDigit(cislo, digit_muxpos[1]);
+  }
+}
+###################################DEBUG PRINT###################################
+// pouzitie:
+// d_print("Teraz vypisem premennu FFF ", FFF, " a aby som odriadkoval, napisem newline \n.");
+#define DEBUG 1 // nastav na 0, aby si zakazal debug print 
+
+template <typename Arg>
+void d_print(Arg arg)
+{
+#if DEBUG
+  Serial.print(arg);
+#endif
+}
+
+template <typename Arg, typename... Rest>
+void d_print(Arg arg, Rest... rest)
+{
+#if DEBUG
+  d_print(arg);
+  d_print(rest...);
+#endif
+}
\ No newline at end of file

index.html

@@ -666,7 +666,7 @@ $(document).ready(function(){
 			<td class="right">21.4.2021</td>
 			<td>934 5196 8778</td>
 			<td><a class="extern" href="https://cesnet.zoom.us/j/93451968778">Join the lab - Šmelko</a></td>
-			<td>Recorded lab</td>
+			<td><a class="extern" href="https://web.microsoftstream.com/video/4f20668a-12ff-4159-b184-4bc1f85bba9a">Recorded lecture</a></td>
 		</tr>
 		<tr>
 			<td class="right">27.4.2021</td>