Download
Share
Print this page
  1. Manuals
  2. Brands
  3. PICO Manuals
  4. Computer Hardware
  5. RTC DS3231
  6. User manual

PICO RTC DS3231 User Manual

Hide thumbs

Advertisement

Quick Links

Download this manual
Pico RTC DS3231
From Waveshare Wiki
Jump to: navigation, search
Overview
The Pico-RTC-DS3231 is an RTC expansion module
specialized for Raspberry Pi Pico. It incorporates high
precision RTC chip DS3231 and uses an I2C bus for
communication. More external sensors are allowed to be
connected thanks to the stackable design.
Features
Standard Raspberry Pi Pico header, supports
Raspberry Pi Pico series.
Onboard high precision RTC chip DS3231, with backup
battery holder.
Real-Time Clock Counts Seconds, Minutes, Hours, Date of the Month, Month, Day
of the Week, and Year with Leap-Year Compensation Valid Up to 2100.
Pico RTC DS3231
(https://www.waveshare.com/pico-
rtc-ds3231.htm)
Precision RTC Module for Raspberry Pi
Pico, Onboard DS3231 Chip

Advertisement

loading
Need help?

Need help?

Do you have a question about the RTC DS3231 and is the answer not in the manual?

Questions and answers

Related Manuals for PICO RTC DS3231

Summary of Contents for PICO RTC DS3231

  • Page 1 Overview Pico RTC DS3231 The Pico-RTC-DS3231 is an RTC expansion module specialized for Raspberry Pi Pico. It incorporates high precision RTC chip DS3231 and uses an I2C bus for communication. More external sensors are allowed to be connected thanks to the stackable design.

  • Page 2: Specification

    Optional format: 24-hour OR 12-hour with an AM/PM indicator. 2 x programable alarm clock. Provide online documentation (Raspberry Pi Pico C/C++ and MicroPython example demos). Specification Operating voltage: 3.3V Backup battery voltage: 2.3V~5.5V Operating temperature: -40°C ~ 85°C...
  • Page 3 Power consumption: 100nA (sustains data and clock information) Pinout...

  • Page 4: Setup Environment

    (/wiki/File:Pico-RTC-DS3231-details-inter.jpg) Dimensions (/wiki/File:Pico-RTC-DS3231-details-dimension.jpg) User Guide Setup environment 1. For an application development environment for Pico on Raspberry Pi, please refer to...
  • Page 5 Ctrl+Alt+T at the same time while using the screen to open the terminal. 2. Download and unzip the demo codes to the directory Pico C/C++ SDK. Reference tutorial (https://www.waveshare.com/wiki/Raspberry_Pi_Pico) for users who have not yet installed the SDK.
  • Page 6 Generally, it should be ~/pico/. wget -P ~/pico https://files.waveshare.com/upload/2/26/Pico-rtc-ds3231_code.zip cd ~/pico unzip Pico-rtc-ds3231_code.zip 1. Hold the BOOTSEL button of Pico, and connect the USB interface of Pico to Raspberry Pi then release the button. 2. Compile and run the pico-rtc-ds3231 examples: cd ~/pico/pico-rtc-ds3231_code/c/build/ cmake ..
  • Page 7 3. Open a terminal and use minicom to check the sensor's information. (/wiki/File:Pico-RTC-DS3231004.jpg) python 1. Refer to Raspberry Pi's guides to setup Micropython firmware for Pico. 2. Open the Thonny IDE, drag the demo to IDE, and run on Pico as below.
  • Page 8 (/wiki/File:Pico-10DOF-IMU005.jpg)
  • Page 9 (/wiki/File:Pico-RTC-DS3231005.jpg) 3. Click the "run" icon to run the MicroPython demo codes.
  • Page 10 (/wiki/File:Pico-RTC-DS3231006.jpg)
  • Page 11 1_code.zip) to your Windows desktop, refer to Raspberry Pi's guides to set up the Windows software environment settings. Press and hold the BOOTSEL button of Pico, connect the USB of Pico to the PC with a MicroUSB cable. Import c or python program into Pico to make it run.
  • Page 13 R5,R6,R7 positions. Click to view the schematic diagram (https://files.wave share.com/upload/0/08/Pico-RTC-DS3231_Sch.pdf). Solder the R5 resistor, connect the INT pin to the GP3 pin of Pico, to detect the output status of the DS3231 alarm clock. Solder the R6 resistor, connect the INT pin to the 3V3_EN pin of Pico, to turn off the Pico power when the DS3231 alarm clock outputs low level.

  • Page 14: Demo Codes

    DS3231 Datasheet (https://files.waveshare.com/upload/9/9b/DS3231.pdf) Demo codes Demo codes (https://files.waveshare.com/upload/2/26/Pico-rtc-ds3231_code.zip) Development Software Thonny Python IDE (Windows V3.3.3) (https://files.waveshare.com/upload/7/73/Thonny- 3.3.3.zip) Zimo221.7z (https://files.waveshare.com/upload/c/c6/Zimo221.7z) Image2Lcd.7z (https://files.waveshare.com/upload/3/36/Image2Lcd.7z) Pico Quick Start Download Firmware MicroPython Firmware Download C_Blink Firmware Download [Expand] [Expand] Video Tutorial Pico Tutorial I - Basic Introduction...
  • Page 15 Pico Tutorial II - GPIO Pico Tutorial III - PWM [Expand] Pico Tutorial IV - ADC [Expand] Pico Tutorial V - UART [Expand] Pico Tutorial VI - To be continued... [Expand] MicroPython Series 【MicroPython】 machine.Pin Function (https://www.waveshare.com/wiki/%E3%80%90M icroPython%E3%80%91_Machine.Pin_Functions) 【MicroPython】 machine.PWM Function (https://www.waveshare.com/wiki/%E3%80%9 0MicroPython%E3%80%91machine.PWM_Function) 【MicroPython】...
  • Page 16 【MicroPython】 rp2.StateMachine (https://www.waveshare.com/wiki/%E3%80%90Micro Python%E3%80%91PIO_Function) C/C++ Series 【C/C++】 Windows Tutorial 1 - Environment Setting (https://www.waveshare.com/wiki/ Pico_C/C%2B%2B_Windows_Tutorial_1) 【C/C++】 Windows Tutorial 1 - Create New Project (https://www.waveshare.com/wiki/Pi co_C/C%2B%2B_Windows_Tutorial_2) Arduino IDE Series Install Arduino IDE 1. Download the Arduino IDE installation package from Arduino website (https://www.ardu ino.cc/).
  • Page 17 (/wiki/File:RoArm-M1_Tutorial_II01.jpg)
  • Page 18 2. Just click on "JUST DOWNLOAD".
  • Page 19 (/wiki/File:RoArm- M1_Tutorial_II02.gif) 4. Note: You will be prompted to install the driver during the installation process, we can click Install. Install Arduino-Pico Core on Arduino IDE 1. Open Arduino IDE, click the File on the left corner and choose "Preferences".
  • Page 20 (/wiki/File:RoArm-M1_Tutorial04.jpg) 2. Add the following link in the additional development board manager URL, then click OK. https://github.com/earlephilhower/arduino-pico/releases/download/global/package_r p2040_index.json...
  • Page 21 Note: If you already have the ESP8266 board URL, you can separate the URLs with commas like this: https://dl.espressif.com/dl/package_esp32_index.json,https://github.com/earlephil hower/arduino-pico/releases/download/global/package_rp2040_index.json 3. Click on Tools -> Dev Board -> Dev Board Manager -> Search for pico, it shows installed since my computer has already installed it.
  • Page 22 (/wiki/File:Pico_Get_Start_05.png)
  • Page 23 (/wiki/File:Pico_Get_Start_06.png) Upload Demo At the First Time 1. Press and hold the BOOTSET button on the Pico board, connect the Pico to the USB port of the computer via the Micro USB cable, and release the button when the computer...
  • Page 24 (/wiki/File:Pico_Get_Start.gif)
  • Page 25 2. Download the demo, open arduino\PWM\D1-LED path under the D1-LED.ino. 3. Click Tools -> Port, remember the existing COM, do not need to click this COM (different computers show different COM, remember the existing COM on your computer).
  • Page 26 (/wiki/File:UGV1_doenload02EN.png)
  • Page 27 4. Connect the driver board to the computer with a USB cable, then click Tools -> Ports, select uf2 Board for the first connection, and after the upload is complete, connecting again will result in an additional COM port.
  • Page 28 (/wiki/File:UGV1_doenload03EN.png)
  • Page 29 5. Click Tool -> Dev Board -> Raspberry Pi Pico/RP2040 -> Raspberry Pi Pico. (/wiki/File:Pico_Get_Start02.png)
  • Page 30 C:\Users\[name]\AppData\Local\Arduino15 (you need to show the hidden files in order to see it) and then reinstall. Pico-W Series Tutorial (To be continued...) Open Source Demo MicroPython Demo (GitHub) (https://github.com/waveshareteam/Pico_MircoPython_Exa mples) MicroPython Firmware/Blink Demo (C) (https://files.waveshare.com/upload/b/b2/Raspbe...

  • Page 31: Technical Support

    Arduino Official C/C++ Demo (https://github.com/earlephilhower/arduino-pico) Support Technical Support If you need technical support or have any feedback/review, please click the Submit Submit Now (https://service.w Now button to submit a ticket, Our aveshare.com/) support team will check and reply to you within 1 to 2 working days.