Waveshare 19426 Pico-RTC-DS3231
Artno.: WS1-019426
Precision RTC Module For Raspberry Pi Pico, Onboard DS3231 Chip

9.50 € incl. 19% VAT
7.98 € excl. VAT
On stock

Shipping time: 1 - 3 workdays


Precision RTC Module for Raspberry Pi Pico, onboard DS3231 chip
Precision RTC Module for Pico

incorporates high precision RTC chip DS3231

Features at a glance

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

  • 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
    • Optional format : 24-hour OR 12-hour with an AM/PM indicator
    • 2x programable alarm clock
  • Comes with development resources and manual (Raspberry Pi Pico C/C++ and MicroPython examples)
Operating voltage 3.3V
Backup battery voltage 2.3V ~ 5.5V
Operating temperature -40°C ~ +85°C
Power consumption 100nA (sustains data and clock information)
Raspberry Pi Pico header compatibility

onboard female pin header for direct attaching to Raspberry Pi Pico Stackable design

Raspberry Pi Pico is NOT included.
What's On Board
  1. DS3231 high precision RTC chip, I2C bus
  2. RTC backup battery supports CR1220 button cell
  3. Power indicator enabled by soldering a 0O resistor on the jumper, disabled by default
  1. Raspberry Pi Pico header for attaching to Raspberry Pi Pico, stackable design
Pinout definition
Outline dimensions
Resources & Services

* Resources for different product may vary, please check the wiki page to confirm the actually provided resources.

Package Contents

  • Pico-RTC-DS3231 x1

Shipping weight: 0.01 Kg

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