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Category | RTC real-time clock |
Type | New item |
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Type | Pre-owned Items |
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OverviewDS1302 Real-Time Clock (RTC) breakout with on-board CR2032 backup battery. It provides a calendar/clock up to year 2100 with leap-year compensation and 31-byte RAM. A simple 3-wire serial interface (RST, I/O, SCLK) allows easy connection to Arduino, ESP32/ESP8266, STM32 or Raspberry Pi at 3.3–5V logic. Low backup current keeps time during power loss. Introductionโมดูลนาฬิกา DS1302 RTC Module พร้อมแบตสำรอง CR2032 สำหรับเก็บเวลาไม่หายเมื่อไฟดับ รองรับรูปแบบเวลา 12/24 ชม. และ Calendar ถึงปี 2100 มีหน่วยความจำ RAM 31 Byte ในตัว ใช้ 3-Wire Serial (RST / I/O / SCLK) ต่อใช้งานง่ายกับ Arduino, ESP32, ESP8266, STM32, Raspberry Pi ทั้งระบบ 3.3V และ 5V เหมาะกับงานบันทึกเวลา Data Logger, นาฬิกา, ระบบ IoT Features
Specification
Cautionห้ามต่อแบต CR2032 ชาร์จซ้ำ และห้ามกลับขั้ว VCC/GND; ใช้กับบอร์ด 5V/3.3V ได้แต่ตรวจสอบ Logic ให้ถูกต้อง. สำหรับ 51 MCU (เช่น P0) ควรมี pull-up. โมดูลนี้ออกแบบเพื่อสำรองเวลา ไม่ใช่โมดูลความเที่ยงตรงสูง—ควรคาลิเบรตถ้าต้องการความแม่นยำระยะยาว. DatasheetDallas/Maxim DS1302 Real-Time Clock Datasheet ManualNot valid |
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Every item comes with a 30-day warranty. However, there are certain conditions that apply:
The customer should not be responsible for any self-inflicted damage, such as incorrect power connections (for example, supplying 5V instead of the required 3.3V for a sensor).
The product must be in perfect condition, without any breakage or damage caused by electricity (e.g., short circuits leading to electrical fires).
The store does not accept product exchanges due to customer misunderstandings, such as purchasing the wrong size for their project or buying something without eventually using it. Customers can inquire about the product details and ensure compatibility before making a purchase by contacting us through our Line account @modulemore during business hours. Please note that there may be delays in response between 12:00 PM and 2:00 PM.
Return Policy: To initiate a product return, customers must provide the original receipt or a copy for quick verification. Returns can be sent to our store address by following these guidelines:
Please note that the store reserves the right to make the final decision regarding product replacement or refund.
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Last updated | Oct 23, 2025 |