通过SPI通信的cyw20719读取G传感器如何降低功耗？

你好，
你需要把设备放在低功率模式，如PDS或SDS。在SDS中，电流消耗在低UA范围内。你可以参考Low Power Guide的更多细节。Wice有一个低功耗模式的低功耗应用程序



     以下为原文
  Hi,
 
You need to put the device in to low power modes such as PDS or SDS. In SDS the current consumption is in low uA range. You can refer Low Power Guide for more details. WICED has a demo app called low_power_sensor which implements low power modes

你好。
SDS或PDS将关闭SPI。但是我需要SPI激活来读取G传感器的数据。
如果芯片从睡眠模式唤醒。电流将至少回到1.35Ma。



     以下为原文
  Hi.
SDS Or PDS will close the SPI. But I need SPI actived to read the data from g-sensor.
If the chip wake up from Sleep mode. The current will back to at least 1.35mA

根据数据表在PDS模式目前是六一UA将很难去在主动模式。你会多频繁地读取传感器值？通常的想法是醒来，读取传感器值尽快回去睡觉，平均功耗低



     以下为原文
  As per the datasheet the current in PDS mode is 61 uA so it will be difficult to go below that in the active mode. How frequently will you be reading the sensor values? Usually the idea is to wake up, read the sensor values as soon as possible and go back to sleep so that the average power consumption is low

嗨，安卡，
在WICEDED BTYSTACKIGITIN（）和停止ADV和扫描之后，VBAT的电流仍然有1.35Ma，对于计步器来说，它仍然是一个非常大的数字吗？通常使用70MaH-Li电池的手腕可以使用至少5天的分段屏幕。



     以下为原文
  Hi amka,
    After wiced_bt_stack_init(), and stop adv & scan, the current at VBAT still has 1.35mA,  Isn't it still a very huge number for a pedometer?  Usually, a wrist with 70mAh li-battery can be used at least 5days with a Segment screen.