https://devzone.nordicsemi.com/f/nordic-q-a/23444/power-consumption-on-nrf52832-with-uartI am testing the nRF52832 in Rigado BMD-301 module. I am able to get to ~40uA when advertising ,UART enabled but not used and all other peripherals disabled. But as soon as i try reading from UART, the current consumption jumps to ~2.4mA. Does this makeen-USTelligent Community 13Wed, 12 Jul 2017 12:51:16 GMThttps://devzone.nordicsemi.com/thread/92117?ContentTypeID=1Wed, 12 Jul 2017 12:51:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f0724fc9-bac9-47a6-b7e0-79cc90184e93Evgeny Erlihman<p>Thank you for the speedy reply! This reduced the current consumption considerably!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/92116?ContentTypeID=1Wed, 12 Jul 2017 10:44:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bbb82c57-7808-4395-8545-5b13212ec1c2Hung Bui<p>Hi Evgeny,</p> <p>Uart requires HFCLK and regulators for operation, when you start UART in RX , it will start using HFCLK and regulators. Also if you use EasyDMA it will also draw more current.</p> <p>I suggest not to use EasyDMA if the data is occasionally received, it actually lower current consumption if using interrupt and CPU when the transmission is seldom.</p><div style="clear:both;"></div>