Notre support est disponible du lundi au vendredi, de 10h à 17h au 04 26 23 70 23

Module horloge en temps réel pour le Banana PI.

Le module d’horloge BPI–RTC est spécifiquement conçu pour Le Banana Pi. Il communique avec Banana Pi par le bus I2C. Il utilise le composant DS3231 de chez Maxim et un supercondensateur de 0.2uF pour sauvegarder l’information dee l’horloge pendant une longue période, après la mise hors tension du Banana PI.

7,50 TTC - 6,25 HT

2 en stock

UGS : BP030 Catégorie : Étiquettes : , , , , , , ,



1:Product Specification:


2:Produce Overview:

       The RTC module is specifically designed for BananaPi. It communicated with BananaPi through I2C bus. There is a Maxim DS3231 and 0.2uF SuperCapacitor on the board to keep the real time for a long time after the BananaPi has power off.

3:Produce Features:

l  Use Maxim DS3231 chip

l  0.2uF Super Capacitor

l  Can be operated by a shell


l  Banana Pi connection port

5:Product Parameters:

l  Accuracy ±2ppm from 0°C to +40°C

l  Battery Backup Input for Continuous Time keeping

l  Real-Time Clock Counts Seconds, Minutes,Hours, Day, Date, Month, and Year with Leap Year Compensation Valid Up to 2100

l  Digital Temp Sensor Output: ±3°C Accuracy

l  Two Time-of-Day Alarms

6:Typical Application:

l  Smart home

l  Utility Power Meters

l  Telematics

7:How to use:

Just insert the module to Banana Pi, like the below picture:

Montage sur Banana PI

8:More information:

The DS3231 is a low-cost, extremely accurate I2C realtime clock (RTC) with an integrated temperature compensated crystal oscillator (TCXO) and crystal. The

device incorporates a battery input, and maintains accurate timekeeping when main power to the device is interrupted. The integration of the crystal resonator enhances

the long-term accuracy of the device as well as reduces the piece-part count in a manufacturing line. The DS3231 is available in commercial and industrial temperature ranges, and is offered in a 16-pin, 300-mil SO package.

The RTC maintains seconds, minutes, hours, day, date,month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format

with an AM/PM indicator. Two programmable time-of day alarms and a programmable square-wave output are provided. Address and data are transferred serially through an I2C bidirectional bus.

A precision temperature-compensated voltage reference and comparator circuit monitors the status of VCC to detect power failures, to provide a reset output, and

to automatically switch to the backup supply when necessary. Additionally, the RST pin is monitored as a pushbutton input for generating a µP reset.

8.1:Schematic diagram: