Voltage at Vcc pin nRF8001

[PhilippS]

Hello!

I am using the nRF2740 board with the nRF8001. If I connect all the pins (SPI, RESET, RDYN, GND) except the Vcc pin I still measure 2.5V at the Vcc pin (Connector P5/Pin 2 - Vcc_nRF).

If charge a capacitor and power the module with it, the voltage on the supply pin/capacitor goes down (e.g. from 3.V) but stays stable at 2.0V - 2.1V.

Is this be behaviour normal or is my nRF2740 broken? (Communication with a MCU and sending over bluetooth to a phone works.)

Thank you!

[Andreas]

Hi,

 

It might be that you are powering the board through one/some of the pins, causing some seemingly arbitrary voltage on VCC. As the wireless communication is working I doubt it is broken.

 

Best regards,

Andreas