https://devzone.nordicsemi.com/f/nordic-q-a/30442/nrf52832-twi-and-low-powerHello. I&#39;ve got issue with TWI and power down mode. I modificated &quot;ble_app_bps&quot; example, prepared own service and characteristic and I added BME280 sensor. And almost everything works fine. Almost.... After read sensor via TWI (perdiodically, one timeen-USTelligent Community 13Mon, 12 Feb 2018 19:13:51 GMThttps://devzone.nordicsemi.com/thread/120624?ContentTypeID=1Mon, 12 Feb 2018 19:13:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:011b8219-fd33-4f49-aa82-e24586bd10cePW<p>Of cource you have right :). I searched in TWI functions and I forgot about float. Thanks.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/120584?ContentTypeID=1Mon, 12 Feb 2018 14:13:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9f7a73c3-9b82-422a-8414-8301e19f0edfMartinBL<p>Hi,</p> <p>Are you using floating point variables? Watch out for this errata: <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.Rev1.errata/anomaly_832_87.html?cp=2_1_1_1_1_24">[87] CPU: Unexpected wake from System ON Idle when using FPU</a><span>.&nbsp;6mA sounds like the CPU is running and refuses to go to sleep and erratum 87 leaves the CPU running forever if you use floats in your code.&nbsp;</span></p><div style="clear:both;"></div>