“Microduino-RTC”的版本间的差异
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Jasonsheng(讨论 | 贡献) (→Specification) |
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− | * | + | *Clock chip: PCF8563; |
− | ** | + | **Low-power CMOS real-time clock / calendar chip; |
− | ** | + | **Provides a programmable clock output, an interrupt output and a brown-out detector, transfers all address and data via the I2C serial bus interface; |
− | ** | + | **The maximum bus speed is 400Kbits / s, after read and write data, the embedded word address register is automatically generated increment. |
− | * | + | *EEPROM chip:AT24C32 |
− | ** | + | **Provide 32,768 serial electrically EPROM, organized as 4096 words × 8-bit length;。 |
− | ** | + | **Cascade feature allows AT24C32 articulated eight devices on the same I2C bug, the replication cycle of millions lives and saved the data to 100 years with a write-protect function. |
− | + | *Super capacitor:XH414 | |
− | * | + | **Provide a power-down timing function in a time slot。 |
− | ** | ||
[[File:RTC-Pinout-1.jpg|800px|thumb|center|Microduino-RTC-Pinout]] | [[File:RTC-Pinout-1.jpg|800px|thumb|center|Microduino-RTC-Pinout]] |
2014年1月27日 (一) 01:52的版本
Microduino-RTC Module is a Real Time Clock module based on NXP CMOS PCF8563. RTC module uses TWI/I2C interface for communication. Data can be backed up with the addtional AT24c32 EEPROM. With an onboard capacitor, RTC module keeps time for serveral minutes after power disconnected. PCF8563 uses external crystal, and can provide timer intterupt tigger.
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Specification
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开发Arduino库及支持包
应用程序下载
测试掉电续时:[RTC_Time]
测试EEPROM读写:[RTC_EEPROM]
测试定时中断:[RTC_Alarm]
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