28 % தள்ளுபடி
Parallax 64013 P2 RTC Add-on Board
The Parallax 64013 P2 RTC Add-on Board is a precision real-time clock module designed specifically for the Parallax P2 microcontroller platform, enabling accurate timekeeping and date management in embedded systems. Professional embedded systems engineers, IoT developers, and industrial automation specialists use this module to implement time-critical applications requiring battery-backed clock functionality with minimal software overhead. This add-on board solves the critical problem of maintaining accurate time across power cycles and system resets without relying on external network synchronization or GPS modules.
Product Overview
The Parallax 64013 P2 RTC Add-on Board integrates a DS3231 real-time clock IC, which is a low-power, high-accuracy clock calendar with integrated temperature-compensated crystal oscillator (TCXO) and crystal. The module communicates with the Propeller 2 microcontroller via I2C protocol, allowing seamless integration into existing P2 projects. The DS3231 maintains seconds, minutes, hours, day, date, month, and year information with automatic leap year compensation. Its temperature compensation ensures frequency stability across the operating temperature range, making it suitable for both indoor laboratory environments and outdoor industrial deployments where thermal fluctuations are significant.
What distinguishes this module is its integrated backup battery circuit that maintains timekeeping functionality during main power loss, coupled with the P2's native I2C support which requires minimal pin usage. The board features proper decoupling capacitors, pull-up resistors for I2C communication, and a coin cell battery holder for continuous operation during power interruptions. The module operates from 3.3V to 5V, making it compatible with standard P2 development boards without requiring additional voltage regulation. Its compact form factor allows for easy integration into breadboard prototypes or custom PCB designs.
Key Specifications
| Specification | Details |
| Product Type | Real-Time Clock Add-on Board for Propeller 2 |
| Brand | Parallax Inc. |
| Origin | Original/Authentic |
| Warranty | 7 days on manufacturing defects |
| Shipping | 1-5 days from Bengaluru |
| Delivery | 7-8 days across India |
| Support | 24/7 via Email and WhatsApp |
| RTC IC | DS3231 with integrated TCXO |
| Communication Protocol | I2C (400 kHz) |
| Operating Voltage | 3.3V to 5.5V |
| Accuracy | ±2 ppm (±1 minute per year) |
| Backup Battery | CR2032 coin cell (not included) |
| Temperature Range | -40°C to +85°C |
Key Features
- DS3231 RTC IC with integrated temperature-compensated crystal oscillator ensuring ±2 ppm accuracy without external frequency adjustments
- I2C interface requiring only two pins (SDA and SCL) for full communication with Propeller 2 microcontroller
- Battery backup circuit with CR2032 coin cell holder maintaining timekeeping during power loss events
- Wide operating voltage range from 3.3V to 5.5V eliminating the need for voltage conversion circuits
- Integrated pull-up resistors and decoupling capacitors for stable I2C communication and noise immunity
- Automatic leap year compensation and day-of-week calculation reducing firmware complexity
Applications and Use Cases
- Data logging systems requiring timestamped sensor measurements in environmental monitoring, industrial IoT, and research applications where precise event correlation is critical
- Home automation and smart building projects needing scheduled task execution and time-based automation rules independent of network connectivity
- Robotics projects implementing time-synchronization protocols for multi-agent systems or autonomous navigation with temporal constraints
- Educational embedded systems projects teaching microcontroller interfacing, I2C protocol implementation, and real-time operating system concepts to engineering students
- Battery-powered remote monitoring stations requiring accurate timekeeping across extended power-saving cycles and intermittent network connectivity
How to Use
To integrate the Parallax 64013 P2 RTC Add-on Board with your Propeller 2 system, connect the board's SDA pin to the P2's designated I2C SDA line and SCL pin to the I2C SCL line. Supply 3.3V to 5.5V power to the VCC pin and connect GND to the board's ground reference. Install a fresh CR2032 coin cell battery into the backup battery holder to enable timekeeping during power loss. The module is immediately ready for communication once power is applied, as the DS3231 operates with default I2C address 0x68 without requiring address configuration jumpers.
In your P2 Spin2 or PASM2 code, initialize the I2C driver using the standard Parallax I2C object library, then implement read and write functions to access the DS3231 registers. The RTC maintains time in Binary Coded Decimal (BCD) format across seven registers starting at address 0x00 for seconds through address 0x06 for year. Set the initial date and time by writing to these registers, then periodically read them to retrieve current time values. The module includes temperature-sensing capability accessible through registers 0x11 and 0x12, allowing you to monitor thermal conditions alongside timekeeping for temperature-compensated applications.
Frequently Asked Questions
What I2C address does the Parallax 64013 use and can it be changed?
The Parallax 64013 P2 RTC Add-on Board uses the fixed I2C address 0x68 (104 in decimal), which is the standard address for DS3231 modules. This address cannot be changed as the DS3231 IC does not provide address selection pins. If you need multiple RTC modules on the same I2C bus, you would require an I2C multiplexer or separate I2C buses.
How long will the CR2032 backup battery maintain the RTC during power loss?
A typical CR2032 coin cell battery can maintain the DS3231 RTC for approximately 2-3 years of continuous operation without main power. The actual duration depends on ambient temperature, as the backup current consumption increases at higher temperatures. The module draws approximately 3-5 microamps from the backup battery when main power is disconnected, making it suitable for long-term timekeeping in remote or intermittently powered applications.
Can the Parallax 64013 synchronize with NTP or GPS for automatic time updates?
The Parallax 64013 P2 RTC Add-on Board itself does not include network or GPS functionality. However, you can synchronize the RTC with external time sources by implementing NTP client code on the P2 microcontroller when network connectivity is available, or by integrating a separate GPS module on another I2C or serial interface. Once synchronized, the DS3231's high accuracy maintains correct time between synchronization events without requiring constant external updates.
What is the temperature accuracy specification and does it affect timekeeping?
The DS3231 maintains ±2 ppm accuracy across its -40°C to +85°C operating range through integrated temperature compensation. This specification means the maximum drift is approximately 1 minute per year under typical conditions. The module includes an internal temperature sensor that automatically adjusts crystal frequency to compensate for thermal effects, eliminating the need for manual calibration across temperature variations.
When will I receive my order?
Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.
What is your return and warranty policy?
We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.
Why Buy from The Engineer Store
- Genuine Products: Sourced directly from authorized distributors with authentication
- Expert Team: Our technical team validates every product before listing
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
- Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
- Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
- Technical Support: 24/7 expert guidance via email and WhatsApp
- Returns: 7-day return policy on manufacturing defects only
Buy Parallax 64013 P2 RTC Add-on Board Online in India
Purchase the Parallax 64013 P2 RTC Add-on Board online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Parallax 64013 P2 RTC Add-on Board with fast shipping and expert support.
Our team in Bengaluru is available 24/7 to support your journey from product selection to project completion.
Parallax 64013 P2 RTC Add-on Board
The Parallax 64013 P2 RTC Add-on Board is a precision real-time clock module designed specifically for the Parallax P2 microcontroller platform, enabling accurate timekeeping and date management in embedded systems. Professional embedded systems engineers, IoT developers, and industrial automation specialists use this module to implement time-critical applications requiring battery-backed clock functionality with minimal software overhead. This add-on board solves the critical problem of maintaining accurate time across power cycles and system resets without relying on external network synchronization or GPS modules.
Product Overview
The Parallax 64013 P2 RTC Add-on Board integrates a DS3231 real-time clock IC, which is a low-power, high-accuracy clock calendar with integrated temperature-compensated crystal oscillator (TCXO) and crystal. The module communicates with the Propeller 2 microcontroller via I2C protocol, allowing seamless integration into existing P2 projects. The DS3231 maintains seconds, minutes, hours, day, date, month, and year information with automatic leap year compensation. Its temperature compensation ensures frequency stability across the operating temperature range, making it suitable for both indoor laboratory environments and outdoor industrial deployments where thermal fluctuations are significant.
What distinguishes this module is its integrated backup battery circuit that maintains timekeeping functionality during main power loss, coupled with the P2's native I2C support which requires minimal pin usage. The board features proper decoupling capacitors, pull-up resistors for I2C communication, and a coin cell battery holder for continuous operation during power interruptions. The module operates from 3.3V to 5V, making it compatible with standard P2 development boards without requiring additional voltage regulation. Its compact form factor allows for easy integration into breadboard prototypes or custom PCB designs.
Key Specifications
| Specification | Details |
| Product Type | Real-Time Clock Add-on Board for Propeller 2 |
| Brand | Parallax Inc. |
| Origin | Original/Authentic |
| Warranty | 7 days on manufacturing defects |
| Shipping | 1-5 days from Bengaluru |
| Delivery | 7-8 days across India |
| Support | 24/7 via Email and WhatsApp |
| RTC IC | DS3231 with integrated TCXO |
| Communication Protocol | I2C (400 kHz) |
| Operating Voltage | 3.3V to 5.5V |
| Accuracy | ±2 ppm (±1 minute per year) |
| Backup Battery | CR2032 coin cell (not included) |
| Temperature Range | -40°C to +85°C |
Key Features
- DS3231 RTC IC with integrated temperature-compensated crystal oscillator ensuring ±2 ppm accuracy without external frequency adjustments
- I2C interface requiring only two pins (SDA and SCL) for full communication with Propeller 2 microcontroller
- Battery backup circuit with CR2032 coin cell holder maintaining timekeeping during power loss events
- Wide operating voltage range from 3.3V to 5.5V eliminating the need for voltage conversion circuits
- Integrated pull-up resistors and decoupling capacitors for stable I2C communication and noise immunity
- Automatic leap year compensation and day-of-week calculation reducing firmware complexity
Applications and Use Cases
- Data logging systems requiring timestamped sensor measurements in environmental monitoring, industrial IoT, and research applications where precise event correlation is critical
- Home automation and smart building projects needing scheduled task execution and time-based automation rules independent of network connectivity
- Robotics projects implementing time-synchronization protocols for multi-agent systems or autonomous navigation with temporal constraints
- Educational embedded systems projects teaching microcontroller interfacing, I2C protocol implementation, and real-time operating system concepts to engineering students
- Battery-powered remote monitoring stations requiring accurate timekeeping across extended power-saving cycles and intermittent network connectivity
How to Use
To integrate the Parallax 64013 P2 RTC Add-on Board with your Propeller 2 system, connect the board's SDA pin to the P2's designated I2C SDA line and SCL pin to the I2C SCL line. Supply 3.3V to 5.5V power to the VCC pin and connect GND to the board's ground reference. Install a fresh CR2032 coin cell battery into the backup battery holder to enable timekeeping during power loss. The module is immediately ready for communication once power is applied, as the DS3231 operates with default I2C address 0x68 without requiring address configuration jumpers.
In your P2 Spin2 or PASM2 code, initialize the I2C driver using the standard Parallax I2C object library, then implement read and write functions to access the DS3231 registers. The RTC maintains time in Binary Coded Decimal (BCD) format across seven registers starting at address 0x00 for seconds through address 0x06 for year. Set the initial date and time by writing to these registers, then periodically read them to retrieve current time values. The module includes temperature-sensing capability accessible through registers 0x11 and 0x12, allowing you to monitor thermal conditions alongside timekeeping for temperature-compensated applications.
Frequently Asked Questions
What I2C address does the Parallax 64013 use and can it be changed?
The Parallax 64013 P2 RTC Add-on Board uses the fixed I2C address 0x68 (104 in decimal), which is the standard address for DS3231 modules. This address cannot be changed as the DS3231 IC does not provide address selection pins. If you need multiple RTC modules on the same I2C bus, you would require an I2C multiplexer or separate I2C buses.
How long will the CR2032 backup battery maintain the RTC during power loss?
A typical CR2032 coin cell battery can maintain the DS3231 RTC for approximately 2-3 years of continuous operation without main power. The actual duration depends on ambient temperature, as the backup current consumption increases at higher temperatures. The module draws approximately 3-5 microamps from the backup battery when main power is disconnected, making it suitable for long-term timekeeping in remote or intermittently powered applications.
Can the Parallax 64013 synchronize with NTP or GPS for automatic time updates?
The Parallax 64013 P2 RTC Add-on Board itself does not include network or GPS functionality. However, you can synchronize the RTC with external time sources by implementing NTP client code on the P2 microcontroller when network connectivity is available, or by integrating a separate GPS module on another I2C or serial interface. Once synchronized, the DS3231's high accuracy maintains correct time between synchronization events without requiring constant external updates.
What is the temperature accuracy specification and does it affect timekeeping?
The DS3231 maintains ±2 ppm accuracy across its -40°C to +85°C operating range through integrated temperature compensation. This specification means the maximum drift is approximately 1 minute per year under typical conditions. The module includes an internal temperature sensor that automatically adjusts crystal frequency to compensate for thermal effects, eliminating the need for manual calibration across temperature variations.
When will I receive my order?
Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.
What is your return and warranty policy?
We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.
Why Buy from The Engineer Store
- Genuine Products: Sourced directly from authorized distributors with authentication
- Expert Team: Our technical team validates every product before listing
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
- Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
- Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
- Technical Support: 24/7 expert guidance via email and WhatsApp
- Returns: 7-day return policy on manufacturing defects only
Buy Parallax 64013 P2 RTC Add-on Board Online in India
Purchase the Parallax 64013 P2 RTC Add-on Board online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Parallax 64013 P2 RTC Add-on Board with fast shipping and expert support.
Our team in Bengaluru is available 24/7 to support your journey from product selection to project completion.