DS3231 AT24C32 IIC Precision RTC Real Time Clock Memory Module Without Battery 3.3V-5V for Arduino ESP32 Temperature Compensated

DS3231 AT24C32 IIC Precision RTC Real Time Clock Memory Module Without Battery 3.3V-5V for Arduino ESP32 Temperature Compensated

$66.51

$66.51 $0.00

Description

SPECIFICATIONS

Application: Computer

Brand Name: NONE

Choice: yes

Condition: New

Dissipation Power: DS3231

High-concerned chemical: none

Operating Temperature: DS3231

Origin: Mainland China

Package: SMD

Supply Voltage: DS3231

Type: Voltage Regulator

is_customized: Yes

20x More Accurate! DS3231 RTC + AT24C32 Memory 2-in-1, Temp Compensated, ±1 Min/Year, 3.3V/5V, Supports Battery Backup (Battery NOT Included).

Key Features & Benefits

⏱️ High-Precision RTC: DS3231 with TCXO, ±2ppm accuracy (0-40°C) – only 1 minute drift per year. Far better than DS1307.

💾 32KB EEPROM: Onboard AT24C32 for saving parameters, logs – non-volatile.

🔋 Battery Backup Supported: Onboard battery socket for LIR2032 (rechargeable, with charging circuit) or CR2032. Battery NOT included (shipping restrictions) – you need to buy separately.

🔌 Wide Voltage I2C: 3.3V-5V, works with Arduino, ESP32, Raspberry Pi, STM32.

🌡️ Integrated Temp Sensor: ±3°C accuracy, read via I2C.

🧩 Plug-and-Play: 4-pin interface, headers included (unsoldered). Pre-soldered option available.

Product Description

Need accurate timekeeping and non-volatile storage for your project? The DS3231 AT24C32 module is the perfect choice. It combines the DS3231 high-precision RTC (temperature compensated) with AT24C32 EEPROM (32Kb) on a single board, communicating via I2C. Less than 1 minute drift per year, leap year compensation until 2100. The module has a battery socket for backup (keeps time when main power is off). However, due to shipping restrictions, battery is NOT included – you need to supply your own LIR2032 (rechargeable) or CR2032. Ideal for data loggers, smart clocks, timed switches, or any system needing saved parameters.

⚡ Quick Start Guide & Important Tips

⚠️ Important Notes

1. Battery: The module HAS a battery socket for backup (keeps time when power is off). However, battery is NOT included due to shipping restrictions. You need to buy LIR2032 (rechargeable, charging circuit onboard) or CR2032 (non-rechargeable – do NOT apply main power while battery inserted).

2. Chip Suffix: Random between DS3231SN and DS3231M – both have temperature compensation, same performance.

3. Soldering Headers: Headers are not soldered by default. Choose "Pre-soldered" SKU for ready-to-use.

4. I2C Addresses: DS3231 = 0x68, AT24C32 default = 0x57 (changeable via A0/A1/A2).

5. First Use: You must set the time in code (e.g., using library or compile time). EEPROM needs no initialization.