RTC_NXP_Arduino 0.5.2
LED driver device operation sample code for Arduino
|
RTC device operation sample code for Arduino
Note
This library works with I2C_device
library together. Please be sure the I2C_device
library is imported in your environment before trying to build.
PCF2131-ARD, PCF85063TP-ARD, PCF85063AT-ARD and PCF85263ATL-ARD : Arduino® Shield Evaluation Board for RTCs
An Arduino library for RTC devices with its sample code.
A method of time()
in each RTC device classes are cpmpatible to time()
function in 'time.h'. The method is defined as same as time_t time( time_t* tp )
.
It returns a value in the systems time stamp format of 'time.h'.
To display the calendar/time, it can be written in this way.
PCF2131, PCF85063A, PCF85063TP and PCF85263A are supported.
On PCF2131, both I²C and SPI can be used for interfacing MCU. Include device name header file (PCF85063A.h
, PCF85063TP.h
, PCF85063TP.h
and for PCF2131, PCF2131_I2C.h
, PCF2131_SPI.h
) to use those class libraries.
Type# | Header file | Features | Interface | Evaluation board |
---|---|---|---|---|
PCF2131 | PCF2131_I2C.h PCF2131_SPI.h | Nano-Power Highly Accurate RTC with Integrated Quartz Crystal | I²C and SPI | PCF2131/PCA2131 Arduino® Shield Evaluation Board |
PCF85063A | PCF85063A.h | Tiny Real-Time Clock/Calendar with Alarm Function | I²C | PCF85063AT-ARD Arduino® Shield Evaluation Board |
PCF85063TP | PCF85063TP.h | Tiny Real-Time Clock/Calendar | I²C | PCF85063TP-ARD Arduino® Shield Evaluation Board |
PCF85263A | PCF85263A.h | Tiny Real-Time Clock/Calendar with Alarm Function, Battery Switch-Over, Time Stamp Input | I²C | PCF85263ATL-ARD Arduino® Shield Evaluation Board |
Use Library manager in Arduino IDE for easy install
Examples are provided as scketch files.
After library install, Choose menu on Arduino-IDE: File
→Examples
→RTC_NXP_Arduino
→ sketch for your try
Sketch | Target | Feature |
---|---|---|
PCF2131_simple_I2C | PCF2131 | Simple sample for just getting current time via I²C in every second |
PCF2131_simple_SPI | PCF2131 | Simple sample for just getting current time via SPI in every second |
PCF2131_interrupt_based_operation | PCF2131 | Interrupt based operation: Demonstrates second/minute, alarm and timestamp features. IMPORTANT: On the PCF2131-ARD shield board, short D8<-->D2 and D9<-->D3 pins |
PCF85063A_simple | PCF85063A | Simple sample for just getting current time via I²C in every second |
PCF85063A_interrupt_based_operation | PCF85063A | Interrupt based operation: Demonstrates timer and alarm features |
PCF85063TP | PCF85063TP | Simple sample for just getting current time via I²C in every second |
PCF85263A_simple | PCF85263A | Simple sample for just getting current time via I²C in every second |
PCF85263A_interrupt_based_operation | PCF85263A | Interrupt based operation: Demonstrates using 2 interrupt lines |
PCF85263A_timestamp | PCF85263A | Timestamp operation: Demonstrates timestamp feature |
If you need to use different I²C bus on Arduino, it can be done like this. This sample shows how the Wire1
on Arduino Due can be operated.
For details of the library, please find descriptions in this document.
Library | Feature | Target devices | Required library |
---|---|---|---|
GPIO_NXP_Arduino | GPIO libraries | PCAL6408A, PCAL6416A, PCAL6524, PCAL6534, PCA9555, PCA9554 | I2C_device_Arduino |
LCDDriver_NXP_Arduino | LCD driver libraries | PCA8561 | I2C_device_Arduino |
LEDDriver_NXP_Arduino | LED driver libraries | PCA9955B, PCA9956B, PCA9957 | I2C_device_Arduino |
MUX_SW_NXP_Arduino | I²C mux/switch libraries | PCA9846 | I2C_device_Arduino |
RTC_NXP_Arduino | RTC libraries | PCF2131, PCF85063A | I2C_device_Arduino |
TempSensor_NXP_Arduino | Temperature sensor libraries | LM75B, PCT2075, P3T1085 | I2C_device_Arduino |
I2C_device_Arduino | Base library for I²C operations | none (can be applied as base class for all I²C targets) | — |