{"id":456,"date":"2026-06-11T10:31:01","date_gmt":"2026-06-11T02:31:01","guid":{"rendered":"https:\/\/projectleon.net\/make\/blog\/lipo-battery-alarm-arduino-buzzer-voltage-monitor-farsi\/"},"modified":"2026-06-11T10:31:02","modified_gmt":"2026-06-11T02:31:02","slug":"lipo-battery-alarm-arduino-buzzer-voltage-monitor-farsi","status":"publish","type":"post","link":"https:\/\/projectleon.net\/make\/blog\/lipo-battery-alarm-arduino-buzzer-voltage-monitor-farsi\/","title":{"rendered":"\u0633\u0627\u062e\u062a \u0633\u06cc\u0633\u062a\u0645 \u0647\u0634\u062f\u0627\u0631 \u0628\u0627\u062a\u0631\u06cc LiPo \u0628\u0627 \u0622\u0631\u062f\u0648\u06cc\u0646\u0648 \u0648 \u0628\u0627\u0632\u0631: \u0627\u0632 \u0648\u0644\u062a\u0627\u0698 \u0627\u06cc\u0645\u0646 \u062a\u0627 Cut-Off (\u0641\u0627\u0631\u0633\u06cc)"},"content":{"rendered":"
\n\u0647\u0634\u062f\u0627\u0631 \u0628\u0627\u062a\u0631\u06cc LiPo \u0622\u0631\u062f\u0648\u06cc\u0646\u0648 \u0628\u0627\u0632\u0631 OLED\n<\/div>\n
\n

\u0628\u0627\u062a\u0631\u06cc LiPo \u0648 \u062e\u0637\u0631 \u062a\u062e\u0644\u06cc\u0647 \u0628\u06cc\u0634 \u0627\u0632 \u062d\u062f \u0686\u06cc\u0633\u062a\u061f (\u0628\u0631\u0627\u06cc \u0645\u0628\u062a\u062f\u06cc)<\/h2>\n

\u0628\u0627\u062a\u0631\u06cc\u200c\u0647\u0627\u06cc LiPo<\/strong> (Lithium Polymer) \u0628\u0631\u0627\u06cc \u067e\u0647\u067e\u0627\u062f\u060c RC Car \u0648 UGV \u0628\u0647 \u062f\u0644\u06cc\u0644 \u0648\u0632\u0646 \u0633\u0628\u06a9 \u0648 \u0627\u0646\u0631\u0698\u06cc \u0628\u0627\u0644\u0627 \u0628\u0633\u06cc\u0627\u0631 \u0645\u062d\u0628\u0648\u0628 \u0647\u0633\u062a\u0646\u062f. \u0627\u0645\u0627 \u0627\u06cc\u0646 \u0628\u0627\u062a\u0631\u06cc\u200c\u0647\u0627 \u0628\u0647 \u062a\u062e\u0644\u06cc\u0647 \u0628\u06cc\u0634 \u0627\u0632 \u062d\u062f \u0628\u0633\u06cc\u0627\u0631 \u062d\u0633\u0627\u0633\u0646\u062f. \u0627\u06af\u0631 \u0648\u0644\u062a\u0627\u0698 \u0647\u0631 \u0633\u0644\u0648\u0644 \u0632\u06cc\u0631 \u06f3.\u06f0V<\/strong> \u0628\u0631\u0633\u062f\u060c \u0628\u0627\u062a\u0631\u06cc \u0628\u0647 \u0637\u0648\u0631 \u062f\u0627\u0626\u0645\u06cc \u0622\u0633\u06cc\u0628 \u0645\u06cc\u200c\u0628\u06cc\u0646\u062f \u0648 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0622\u062a\u0634 \u0628\u06af\u06cc\u0631\u062f.<\/p>\n

\u0645\u062d\u062f\u0648\u062f\u0647 \u0627\u06cc\u0645\u0646 \u0647\u0631 \u0633\u0644\u0648\u0644 LiPo: \u0648\u0644\u062a\u0627\u0698 \u067e\u0631 = \u06f4.\u06f2V<\/strong>\u060c \u0648\u0644\u062a\u0627\u0698 \u0646\u0627\u0645\u200c\u0627\u0633\u0645\u06cc = \u06f3.\u06f7V<\/strong>\u060c \u062d\u062f\u0627\u0642\u0644 \u0645\u062c\u0627\u0632 = \u06f3.\u06f5V<\/strong>\u060c \u062e\u0637 \u0642\u0631\u0645\u0632 = \u06f3.\u06f3V<\/strong>. \u06cc\u06a9 \u0628\u0627\u062a\u0631\u06cc 3S<\/strong> (\u0633\u0647 \u0633\u0644\u0648\u0644) \u0628\u06cc\u0646 \u06f9.\u06f9V \u062a\u0627 \u06f1\u06f2.\u06f6V \u06a9\u0627\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0633\u06cc\u0633\u062a\u0645 \u0647\u0634\u062f\u0627\u0631 \u0648\u0644\u062a\u0627\u0698 \u0627\u06cc\u0646 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0631\u0627 \u067e\u0627\u06cc\u0634 \u0645\u06cc\u200c\u06a9\u0646\u062f \u0648 \u062f\u0631 \u0645\u0648\u0627\u0642\u0639 \u062e\u0637\u0631 \u0647\u0634\u062f\u0627\u0631 \u0645\u06cc\u200c\u062f\u0647\u062f.<\/p>\n

\u06cc\u06a9 \u0645\u0642\u0633\u0645 \u0648\u0644\u062a\u0627\u0698<\/strong> (Voltage Divider) \u0633\u0627\u062f\u0647 \u0628\u0627 \u062f\u0648 \u0645\u0642\u0627\u0648\u0645\u062a \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0648\u0644\u062a\u0627\u0698 \u06f1\u06f2.\u06f6V \u0631\u0627 \u0628\u0647 \u06f5V \u06a9\u0627\u0647\u0634 \u062f\u0647\u062f \u062a\u0627 Arduino \u0622\u0646 \u0631\u0627 \u0628\u062e\u0648\u0627\u0646\u062f \u2014 \u0648 \u0645\u0627 \u0627\u0632 \u0627\u06cc\u0646 \u0645\u062f\u0627\u0631 \u0633\u0627\u062f\u0647 \u0628\u0631\u0627\u06cc \u0627\u0646\u062f\u0627\u0632\u0647\u200c\u06af\u06cc\u0631\u06cc \u062f\u0642\u06cc\u0642 \u0648\u0644\u062a\u0627\u0698 \u0628\u0627\u062a\u0631\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645.<\/p>\n<\/div>\n

\n

\u0645\u062d\u0635\u0648\u0644\u06cc \u06a9\u0647 \u0645\u06cc\u200c\u0633\u0627\u0632\u06cc\u062f<\/h2>\n

\u06cc\u06a9 \u0647\u0634\u062f\u0627\u0631 \u0648\u0644\u062a\u0627\u0698 \u0628\u0627\u062a\u0631\u06cc LiPo \u06a9\u0647 \u0648\u0644\u062a\u0627\u0698 \u0641\u0639\u0644\u06cc \u0631\u0627 \u0631\u0648\u06cc OLED \u0646\u0645\u0627\u06cc\u0634 \u0645\u06cc\u200c\u062f\u0647\u062f \u0648 \u062f\u0631 \u0648\u0644\u062a\u0627\u0698 \u062e\u0637\u0631 \u0628\u0627\u0632\u0631 \u0645\u06cc\u200c\u0632\u0646\u062f.<\/p>\n

    \n
  • \u0632\u0645\u0627\u0646 \u0633\u0627\u062e\u062a:<\/strong> \u06f1.\u06f5 \u062a\u0627 \u06f2.\u06f5 \u0633\u0627\u0639\u062a<\/li>\n
  • \u0647\u0632\u06cc\u0646\u0647:<\/strong> \u06f2\u06f5\u06f0 \u062a\u0627 \u06f4\u06f0\u06f0 \u0647\u0632\u0627\u0631 \u062a\u0648\u0645\u0627\u0646<\/li>\n
  • \u0633\u0627\u0632\u06af\u0627\u0631 \u0628\u0627:<\/strong> 2S \u062a\u0627 6S LiPo<\/li>\n<\/ul>\n<\/div>\n

    \n\nLiPo 3S<\/text>\n11.1V Nom<\/text>\n\n\n\u0645\u0642\u0633\u0645 \u0648\u0644\u062a\u0627\u0698<\/text>\nR1=30k R2=10k<\/text>\n\n\nArduino Nano<\/text>\nADC \u2192 \u0648\u0644\u062a\u0627\u0698<\/text>\n\n\n\n\nOLED 0.96″<\/text>\n\u0628\u0627\u0632\u0631 \u0647\u0634\u062f\u0627\u0631<\/text>\nLiPo \u2192 \u0645\u0642\u0633\u0645 \u0648\u0644\u062a\u0627\u0698 \u2192 ADC Arduino \u2192 OLED + \u0628\u0627\u0632\u0631<\/text>\n<\/svg><\/p>\n

    \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u0642\u0633\u0645 \u0648\u0644\u062a\u0627\u0698 \u0628\u0631\u0627\u06cc 3S<\/h2>\n
    \n\/\/ \u0641\u0631\u0645\u0648\u0644: V_out = V_in \u00d7 R2 \/ (R1 + R2)\n\/\/ \u0647\u062f\u0641: 12.6V \u2192 3.15V (\u06a9\u0645\u06cc \u0632\u06cc\u0631 3.3V \u0631\u0641\u0631\u0627\u0646\u0633 Arduino)\n\n\/\/ \u0628\u0631\u0627\u06cc 3S LiPo (\u062d\u062f\u0627\u06a9\u062b\u0631 12.6V):\n\/\/ R1 = 30k\u03a9,  R2 = 10k\u03a9\n\/\/ V_out = 12.6 \u00d7 10 \/ (30+10) = 3.15V \u2713\n\n\/\/ \u0628\u0631\u0627\u06cc 4S LiPo (\u062d\u062f\u0627\u06a9\u062b\u0631 16.8V):\n\/\/ R1 = 47k\u03a9,  R2 = 10k\u03a9\n\/\/ V_out = 16.8 \u00d7 10 \/ (47+10) = 2.95V \u2713\n\n\/\/ \u0636\u0631\u06cc\u0628 \u062a\u0628\u062f\u06cc\u0644 \u0628\u0631\u0627\u06cc 3S:\n\/\/ V_bat = ADC_read \u00d7 (5.0\/1023.0) \u00d7 (30+10)\/10\n\/\/ = ADC_read \u00d7 5.0 \/ 1023.0 \u00d7 4.0\n<\/code><\/pre>\n
    \u06a9\u062f Arduino<\/h2>\n
    \n#include <Wire.h>\n#include <Adafruit_SSD1306.h>\n\nAdafruit_SSD1306 oled(128, 64, &Wire, -1);\n\nconst int  VOLT_PIN  = A0;\nconst int  BUZZ_PIN  = 9;\nconst float R_RATIO  = 4.0;    \/\/ (R1+R2)\/R2 = 40k\/10k\nconst float VREF     = 5.0;\nconst int   CELLS    = 3;\n\n\/\/ \u0622\u0633\u062a\u0627\u0646\u0647\u200c\u0647\u0627\u06cc \u0647\u0634\u062f\u0627\u0631\nconst float WARN_V   = 3.65;   \/\/ \u0647\u0634\u062f\u0627\u0631 \u0627\u0648\u0644 (\u0648\u0644\u062a\u0627\u0698\/\u0633\u0644\u0648\u0644)\nconst float ALARM_V  = 3.5;    \/\/ \u0647\u0634\u062f\u0627\u0631 \u062f\u0648\u0645 \u2014 \u0628\u06cc\u067e \u0633\u0631\u06cc\u0639\nconst float CUTOFF_V = 3.3;    \/\/ \u0642\u0637\u0639 \u2014 \u0628\u06cc\u067e \u0645\u0645\u062a\u062f\n\nvoid setup() {\n  pinMode(BUZZ_PIN, OUTPUT);\n  oled.begin(SSD1306_SWITCHCAPVCC, 0x3C);\n  oled.clearDisplay(); oled.setTextColor(WHITE);\n}\n\nvoid loop() {\n  int raw = analogRead(VOLT_PIN);\n  float vBat = raw * (VREF \/ 1023.0) * R_RATIO;\n  float vCell = vBat \/ CELLS;\n\n  oled.clearDisplay();\n  oled.setTextSize(2); oled.setCursor(0, 0);\n  oled.print(vBat, 2); oled.println(\"V\");\n  oled.setTextSize(1); oled.setCursor(0, 20);\n  oled.print(\"Per Cell: \"); oled.print(vCell, 3); oled.println(\"V\");\n\n  if (vCell <= CUTOFF_V) {\n    oled.setCursor(0, 40); oled.print(\"!! CRITICAL !!\");\n    tone(BUZZ_PIN, 2000);  \/\/ \u0628\u06cc\u067e \u0645\u0645\u062a\u062f\n  } else if (vCell <= ALARM_V) {\n    oled.setCursor(0, 40); oled.print(\"! LOW BATT !\");\n    tone(BUZZ_PIN, 1500, 200); delay(300);  \/\/ \u0628\u06cc\u067e \u0633\u0631\u06cc\u0639\n  } else if (vCell <= WARN_V) {\n    oled.setCursor(0, 40); oled.print(\"Batt Warning\");\n    tone(BUZZ_PIN, 1000, 100); delay(1000);  \/\/ \u0628\u06cc\u067e \u0622\u0631\u0627\u0645\n  } else {\n    noTone(BUZZ_PIN);\n  }\n\n  oled.display();\n  delay(500);\n}\n<\/code><\/pre>\n
    \u0686\u06a9\u200c\u0644\u06cc\u0633\u062a \u062a\u0633\u062a<\/h2>\n\n\n\n\n\n\n\n\n
    \u062a\u0633\u062a<\/th>\n\u0646\u062a\u06cc\u062c\u0647<\/th>\n<\/tr>\n<\/thead>\n
    \u0648\u0644\u062a\u0627\u0698 OLED \u0628\u0627 \u0645\u0648\u0644\u062a\u06cc\u200c\u0645\u062a\u0631 \u062a\u0637\u0627\u0628\u0642 \u062f\u0627\u0631\u062f\u061f<\/td>\n\u2264 \u00b1\u06f0.\u06f1V<\/td>\n<\/tr>\n
    \u062f\u0631 \u06f1\u06f1V (3.67V\/cell) \u0647\u0634\u062f\u0627\u0631 \u0645\u06cc\u200c\u062f\u0647\u062f\u061f<\/td>\n\u0628\u0644\u0647 \u2014 \u0628\u06cc\u067e \u0622\u0631\u0627\u0645<\/td>\n<\/tr>\n
    \u062f\u0631 \u06f1\u06f0.\u06f5V (3.5V\/cell) \u0628\u06cc\u067e \u0633\u0631\u06cc\u0639\u061f<\/td>\n\u0628\u0644\u0647<\/td>\n<\/tr>\n
    \u062f\u0631 \u06f9.\u06f9V (3.3V\/cell) \u0628\u06cc\u067e \u0645\u0645\u062a\u062f\u061f<\/td>\n\u0628\u0644\u0647<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n\n11.84V<\/text>\nPer Cell: 3.947V<\/text>\nStatus: OK<\/text>\n\n\u0646\u0645\u0627\u06cc\u0634\u06af\u0631 OLED<\/text>\n\u0648\u0644\u062a\u0627\u0698 + \u0648\u0636\u0639\u06cc\u062a<\/text>\n\u25cf \u0633\u0627\u0644\u0645<\/text>\n<\/svg><\/p>\n
    \u0648\u06cc\u062f\u0626\u0648\u0647\u0627\u06cc \u0622\u0645\u0648\u0632\u0634\u06cc<\/h2>\n
    \n