first test arduino sketch

KiCad/0004-DenshaBekutoru/0004-DenshaBekutoru.kicad_pro

@@ -370,9 +370,9 @@
     "meta": {
       "version": 1
     },
-    "net_format_name": "",
+    "net_format_name": "Spice Model",
     "page_layout_descr_file": "",
-    "plot_directory": "",
+    "plot_directory": "/home/tgohle/Desktop/git/ToGo-Lab/0004-DenshaBekutoru/KiCad/0004-DenshaBekutoru/",
     "spice_current_sheet_as_root": false,
     "spice_external_command": "spice \"%I\"",
     "spice_model_current_sheet_as_root": true,

KiCad/0004-DenshaBekutoru/0004-DenshaBekutoru_spice.txt

@@ -0,0 +1,39 @@
+*
+
+.subckt 0004-DenshaBekutoru
+
+
+.model __D2 D
+.model __D1 D
+R3 Net-_D10-A_ VCC 220
+D10 __D10
+C5 VCC GND 100n
+U4 __U4
+C4 VCC GND 4.7u
+U3 __U3
+R4 Net-_D11-A_ VCC 220
+D11 __D11
+R5 Net-_U3-_RESET/PB5_ VCC 10k
+R6 Net-_D4-A_ Net-_D6-K_ 220
+D6 __D6
+D5 __D5
+R7 Net-_D6-A_ Net-_D4-K_ 220
+D4 __D4
+C3 Net-_D3-K_ GND 100n
+U1 __U1
+C2 Net-_D3-K_ GND 47u
+D3 __D3
+U2 __U2
+D2 Net-_D2-A_ Net-_D2-K_ __D2
+C1 Net-_U3-_RESET/PB5_ GND 100n
+SW1 __SW1
+R8 Net-_D8-A_ Net-_D5-K_ 220
+D7 __D7
+D8 __D8
+D9 __D9
+R1 Net-_D2-A_ Net-_D1-K_ 1.8k
+R2 Net-_D1-A_ Net-_D2-K_ 1.8k
+D1 Net-_D1-A_ Net-_D1-K_ __D1
+J1 __J1
+
+.ends

firmware/ArduinoTest/VoltagePinOCCheck_V01/VoltagePinOCCheck_V01.ino

@@ -0,0 +1,58 @@
+/*
+  0004_DenshaBekutoru ? Optocoupler Averaging Test (UNO)
+
+  Measures average voltage on:
+   - A2 -> later ATtiny85 PB3 (XTAL1, Pin 2)
+   - A3 -> later ATtiny85 PB4 (XTAL2, Pin 3)
+
+  Integration window is configurable via SAMPLE_WINDOW_MS.
+
+  by tgohle, last edit 20260111
+ 
+*/
+
+const unsigned long SAMPLE_WINDOW_MS = 100;   // change here
+const unsigned long SAMPLE_DELAY_US  = 500;   // delay between ADC samples
+
+const uint8_t ADC_PIN_1 = A2;  // UNO A2  -> later ATtiny85 PB3 (XTAL1, Pin 2)
+const uint8_t ADC_PIN_2 = A3;  // UNO A3  -> later ATtiny85 PB4 (XTAL2, Pin 3)
+
+void setup() {
+  Serial.begin(115200);
+
+  pinMode(ADC_PIN_1, INPUT);
+  pinMode(ADC_PIN_2, INPUT);
+
+  Serial.println("=== DenshaBekutoru Optocoupler Average Test ===");
+}
+
+void loop() {
+  unsigned long startTime = millis();
+
+  unsigned long sum1 = 0;
+  unsigned long sum2 = 0;
+  unsigned long samples = 0;
+
+  while (millis() - startTime < SAMPLE_WINDOW_MS) {
+    sum1 += analogRead(ADC_PIN_1);
+    sum2 += analogRead(ADC_PIN_2);
+    samples++;
+    delayMicroseconds(SAMPLE_DELAY_US);
+  }
+
+  float avg1 = (float)sum1 / samples;
+  float avg2 = (float)sum2 / samples;
+
+  float v1 = avg1 * (5.0 / 1023.0);
+  float v2 = avg2 * (5.0 / 1023.0);
+
+  Serial.print("A2 for PB3  XTAL1, Pin2: ");
+  Serial.print(v1, 3);
+  Serial.print(" V   |   ");
+
+  Serial.print("A3 for PB4 XTAL2, Pin3: ");
+  Serial.print(v2, 3);
+  Serial.println(" V");
+
+  delay(300);
+}