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HiLetgo 5pcs DS3231 High Precision RTC Real Time Clock Module 3.3V/5V Arduino Raspberry Pi

Q: Is the battery replaceable? What type? It looks like it's soldered on.

It is NOT a capacitor. It is a CR1025 lithium cell with solder tabs (not easy to find!) DO NOT attempt to solder wires directly to a battery--it might explode! Cheers es 73, NV1T Tom

Q: If you have power loss, does the real-time clock retain the correct time, i.e., does it have battery backup?

It is NOT a capacitor; it's a CR1025 lithium cell with solder tabs. Yes, the battery will retain the correct time in the absence of power. There is a tiny but measurable current drain, so the battery will eventually die, and it is NOT a rechargeable type. Cheers es 73, NV1T Tom

Q: Is this compatible with the esp8266?

It is an I2C device and the esp8266 has I2C capability so it will work with the appropriate firmware.

Q: Pictures dont show wiring diagram, wheres it at?

It's an I2C device. The pins are labeled thus: Label Meaning ------ --------- + Vcc (5V) D SDA C SCL NC (No Connection) - Ground Cheers es 73, NV1T

4.3/5

Product ID: 262105359

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HiLetgo 5pcs DS3231 High Precision RTC Real Time Clock Module 3.3V/5V for Arduino Raspberry Pi

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Description

HiLetgo 5pcs DS3231 High Precision RTC Real Time Clock Module 3.3V/5V Arduino Raspberry Pi

Have a Question? See What Others Asked

Is the battery replaceable? What type? It looks like it's soldered on.

If you have power loss, does the real-time clock retain the correct time, i.e., does it have battery backup?

Is this compatible with the esp8266?

Pictures dont show wiring diagram, wheres it at?

Common Questions

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TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

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