https://github.com/nopnop2002/esp-idf-ds1302

DS1302 RTC Driver for esp-idf
https://github.com/nopnop2002/esp-idf-ds1302

ds1302 esp-idf esp32 rtc

Last synced: 4 months ago
JSON representation

DS1302 RTC Driver for esp-idf

• Host: GitHub
• URL: https://github.com/nopnop2002/esp-idf-ds1302
• Owner: nopnop2002
• Created: 2019-06-14T13:36:09.000Z (about 6 years ago)
• Default Branch: master
• Last Pushed: 2023-07-09T00:48:50.000Z (about 2 years ago)
• Last Synced: 2025-03-17T09:06:50.225Z (4 months ago)
• Topics: ds1302, esp-idf, esp32, rtc
• Language: C
• Size: 22.5 KB
• Stars: 18
• Watchers: 1
• Forks: 5
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
# esp-idf-ds1302

DS1302 RTC Driver for esp-idf

I ported from [here](https://github.com/Erriez/ErriezDS1302/tree/master/src).   

# Installation

```

git clone https://github.com/nopnop2002/esp-idf-ds1302

cd esp-idf-ds1302

idf.py menuconfig

idf.py flash

```

# Wireing  

|DS1302||ESP32|

|:-:|:-:|:-:|

|CLK|--|GPIO15(*1)|

|DAT|--|GPIO16(*1)|

|RST|--|GPIO17(*1)|

|GND|--|GND|

|VCC|--|3.3V|

(*1) You can change using menuconfig.   

# Set Clock Mode   

This mode set RTC initial value using NTP time Server.   

You have to set these config value using menuconfig.   

![config-ds1302-1](https://user-images.githubusercontent.com/6020549/59513345-a3568980-8ef5-11e9-85c8-4ed1744d73e1.jpg)

![config_ds1302-2](https://user-images.githubusercontent.com/6020549/59513344-a3568980-8ef5-11e9-9e91-79d73f91a3dc.jpg)

You have to set gpio & NTP Server using menuconfig.   

![config-ds1302-11](https://user-images.githubusercontent.com/6020549/59513485-e3b60780-8ef5-11e9-9d77-aee1cb9d40dd.jpg)

![config-ds1302-12](https://user-images.githubusercontent.com/6020549/59513496-e9135200-8ef5-11e9-9f03-2ad96fc7c1c9.jpg)

# Get Clock Mode   

This mode take out the time from a RTC clock.   

You have to change mode using menuconfig.   

![config-ds1302-11](https://user-images.githubusercontent.com/6020549/59513485-e3b60780-8ef5-11e9-9d77-aee1cb9d40dd.jpg)

![config-ds1302-13](https://user-images.githubusercontent.com/6020549/59514431-ca15bf80-8ef7-11e9-9b59-ff4b5510ec0f.jpg)

![ds1302-13](https://user-images.githubusercontent.com/6020549/59513594-1fe96800-8ef6-11e9-9b53-a2d2626d784f.jpg)

# Get the time difference of NTP and RTC   

This mode get time over NTP, and take out the time from a RTC clock.   

Calculate time difference of NTP and RTC.   

You have to change mode using menuconfig.   

![config-ds1302-11](https://user-images.githubusercontent.com/6020549/59513485-e3b60780-8ef5-11e9-9d77-aee1cb9d40dd.jpg)

![config-ds1302-14](https://user-images.githubusercontent.com/6020549/59556587-9de56600-8fff-11e9-8a02-69eacd675ad8.jpg)

![ds1302-14](https://user-images.githubusercontent.com/6020549/59556737-b2772d80-9002-11e9-921e-4a794605dd86.jpg)

# Time difference of 1 week later.   

![ds1302-1week](https://user-images.githubusercontent.com/6020549/59961747-e082d300-9516-11e9-87ea-dba01d00e3be.jpg)

# Time difference of 1 month later.   

![ds1302-1month](https://user-images.githubusercontent.com/6020549/61292629-b74f1d00-a80c-11e9-940a-51bd0aeef1d4.jpg)

# Comparison with other RTCs

This module has a large time lag.   

I recommend the DS3231 RTC.   

https://github.com/nopnop2002/esp-idf-ds3231