Gorillacell Module 045: RTC
Table of Contents
Real Time Clock (RTC) stands for Real Time Clock, which provides accurate timekeeping over long periods because it has its own independent power source, typically a coin cell battery. This allows the clock to maintain the correct time even when the main system power is off.
The Gorillacell ESP32 Development Kit comes with one RTC module driven by the DS3231 chip. The DS3231 is a high-accuracy I²C real-time clock that provides both date (year, month, and day) and time (hour, minute, and second) information.
BASIC INFORMATION
| Device | Category | Interface | Chipset | Description |
|---|---|---|---|---|
| Input | Sensor Cell | Serial I2C | DS3231 | I2C = 0x68 |
PINOUT
It has 4 pins which are
- GND - for the ground pin,
- VCC - for the supply voltage,
- SDA – for the I2C serial data pin, and
- SCL – for the I2C serial clock pin.
The RTC module with DS3231 driver chip can be access through I2C address 0x68.
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