Waveshare Precision RTC Module for Raspberry Pi Pico, Onboard DS3231 Chip
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.
Specifications
| Operating Voltage (VDC) | 3.3 |
| Backup battery voltage | 2.3 ~ 5.5V |
| Operating Temperature (°C) | -40 to 85 |
| Power consumption | 100nA |
| Length (mm) | 52 |
| Width (mm) | 21 |
| Height (mm) | 10 |
| Weight (gm) | 23 |
| Shipment Weight | 0.023 kg |
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.
- Optional format: 24-hour OR 12-hour with an AM/PM indicator.
- 2x programable alarm clock.
Package Includes
1 x Precision RTC Module for Raspberry Pi Pico
Waveshare Precision RTC Module for Raspberry Pi Pico, Overview
The Waveshare Precision RTC Module for Raspberry Pi Pico is a real-time clock expansion board featuring the high-precision DS3231 chip. It provides accurate timekeeping via I2C and includes an onboard backup battery holder to maintain clock data when the Pico is powered down.
Key Features of Waveshare Precision RTC Module for Raspberry Pi Pico,
- Onboard DS3231 high-precision RTC chip with ±2ppm accuracy from 0°C to 40°C
- I2C bus interface compatible with Raspberry Pi Pico’s default SDA/SCL pins
- Backup battery holder for CR1220 button cell (2.3V–5.5V) to sustain timekeeping
- Ultra-low power consumption: only 100 nA in battery backup mode
- Stackable design allows additional HATs or sensors on top of the Pico
- Fast shipping from Zbotic—get your module dispatched within 24 hours
Applications and Use Cases
- Time-stamping sensor data in environmental monitoring projects
- Scheduling power-on/power-off events for automation systems
- Building alarm clocks or countdown timers with precise intervals
- Logging data in remote data loggers where mains power is unavailable
- Adding real-time calendar features to wearable or handheld Pico devices
How to Use Waveshare Precision RTC Module for Raspberry Pi Pico,
Simply plug the Raspberry Pi Pico into the 20-pin header of the RTC module, insert a CR1220 backup battery into the holder, and connect to your code via the I2C interface on GP0 (SDA) and GP1 (SCL). Use a MicroPython or C SDK DS3231 library to initialize the clock, set the date/time, and read time values in your application.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
What backup battery does this RTC module use?
The module uses a CR1220 button cell (2.3V–5.5V range) to maintain timekeeping when main power is removed.
Can I stack other HATs on the Pico when using this module?
Yes, the stackable header design allows additional HATs or sensor boards to be mounted above the RTC module.
How long will the RTC keep time on the backup battery?
With only 100 nA quiescent current, the DS3231 can maintain clock data for several years on a fresh CR1220 cell.
Technical Specifications
| Brand | WAVESHARE |
|---|---|
| SKU | AI0898 |
| Weight | 0.023 kg |
| Availability | Out of Stock |
Applications & Use Cases
The Waveshare Precision RTC Module for Raspberry Pi Pico, Onboard DS3231 Chip is a versatile rtc module used across a wide range of applications including electronics projects, DIY builds, prototyping, and educational experiments.
Common use cases:
- Integrating into a custom electronics project
- Learning and experimenting with circuits
- Replacing or upgrading components in existing setups
This product is ideal for electronics enthusiasts, engineers, and students.
Technical Tip: Always verify voltage and current requirements before connecting to your circuit. Check datasheets for detailed specifications and pin configurations.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
- Genuine WAVESHARE product sourced from authorized channels
Tanmay Bhatt (verified owner) –
Nice Waveshare Precision RTC Module for Raspberry. Works great for my project. Wish the case was included though.
Lokesh Gupta (verified owner) –
Good quality Waveshare Precision RTC Module for Raspberry. Shipping was fast. Minor scuff on the box but product is fine.
Lokesh Gill (verified owner) –
Love this Waveshare Precision RTC Module for Raspberry! Running Python scripts 24/7 without any issues for months now.
Urmi Krishnan (verified owner) –
Great Waveshare Precision RTC Module for Raspberry. Using it as a NAS server. Stable and reliable performance.
Hardik Mukherjee (verified owner) –
Superb quality Waveshare Precision RTC Module for Raspberry. Genuine product, fast delivery. Using it for a media center.
Pooja Deshpande (verified owner) –
This Waveshare Precision RTC Module for Raspberry is ideal for learning Linux and programming. Bought for my son, he loves it!
Mukesh Tiwari (verified owner) –
Love this Waveshare Precision RTC Module for Raspberry! Running Python scripts 24/7 without any issues for months now.
Naman Arora (verified owner) –
Good quality Waveshare Precision RTC Module for Raspberry. Shipping was fast. Minor scuff on the box but product is fine.
Lalit Jain (verified owner) –
Decent Waveshare Precision RTC Module for Raspberry. Setting up was straightforward. Good for the price.
Anand Khanna (verified owner) –
Perfect Waveshare Precision RTC Module for Raspberry for my machine learning project. Great performance for the size.
Aditya Joshi (verified owner) –
Amazing Waveshare Precision RTC Module for Raspberry. Set up Retro Pi and it works like a charm. Great purchase!
Suresh Rajan (verified owner) –
Love this Waveshare Precision RTC Module for Raspberry! Running Python scripts 24/7 without any issues for months now.
Varun Bose –
Great Waveshare Precision RTC Module for Raspberry. Using it as a NAS server. Stable and reliable performance.
Ishaan Verma (verified owner) –
This Waveshare Precision RTC Module for Raspberry is perfect for my IoT gateway project. Handles everything smoothly.
Eshan Das (verified owner) –
Great Waveshare Precision RTC Module for Raspberry. Using it as a NAS server. Stable and reliable performance.
Tejas Deshpande (verified owner) –
Outstanding! This Waveshare Precision RTC Module for Raspberry powers my home automation hub. Zbotic delivers genuine products.
Lakshya Patel (verified owner) –
Love this Waveshare Precision RTC Module for Raspberry! Running Python scripts 24/7 without any issues for months now.
Sonali Bhandari –
Love this Waveshare Precision RTC Module for Raspberry! Running Python scripts 24/7 without any issues for months now.