Power consumption

Question

Hi all, 
 I have bought the NRF51822 evaluation kit ( NRF51822 ). I have some question about this. 
 1) Is it necessary to program the device? 
 2) what is the nominal operation? 
 3) What is the power consumption in standby, transmission, so on? 
 4) Does exist some application note? 
 
 Thanks a lot and best regards 
 
 Angelo

Simonr · Accepted Answer

Hi 
 1. Some of the current consumption peaks are stated in the very first page under key features. Page 47 in section 8.2 Power management also has a table of various current consumption scenarios. Section 8.5.2 and 8.5.3 (page 50-51) has more detailed current consumption scenarios with the radio running. 
 2. Then I suggest you take a look at I.E. our blood pressure example , which implements the blood pressure service to simulate and send blood pressure measurements. Of course, you will have to create a serial interface between the nRF51822 and the sensor as well in order to get the measurements from the sensor itself, what you want to use here depends on what the sensors support, the SPI , TWI , and/or the UART examples would be good to take a look at. 
 3. For development of the nRF51 series, we suggest using either Keil µVision, armgcc, or IAR as the IDE as these have example projects already compatible with the nRF51 series, so you won't have to create a project from scratch. As for hardware, if you already have an nRF51 DK or evaluation kit, it comes with an onboard debugger and the nRF51 chip itself, so you won't need to purchase a debugger on top of that. I have never used the BLE400 so I have no idea if it is a good product, but I don't believe it should be necessary when you already have an nRF51 DK. 
 NOTE: When working on new BLE applications/projects we generally recommend that you use the nRF52 series, as they are newer, have more updated support, and have example projects for SEGGER Embedded Studios, which you get a free license of when purchasing an nRF device. 
 Best regards, 
 Simon

Power consumption

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