Interface and connectivity ICs

Ask questions and find answers on connectivity ICs, focusing on protocols and I2C challenges on STM32 Nucleo boards and BlueNRG products.

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Forum Posts

Where to find ST7540 DEMOKIT GUI?

Hi all,I recovered 2 old ST7540 DEMOKITs complete of the related ST7-based COMMBOARDs (photo attached); however I don't have the DEMOKIT GUI that is cited in the UM0239 I found on the ST website (https://www.st.com/en/interfaces-and-transceivers/st75...

BlueNRG-2 VBAT max rating

Hi,I'm designing a beacon around the BlueNRG-2 and would like to power it from a battery that can output as much as 3.67V. Unfortunately this exceeds the max Vin limit on the datasheet (3.6V) by only 70mV. I have a couple of questions in the hopes of...

jaylong by Associate II
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Question on setting for NRG-1 and NRG-2

I am using NRG-1 for my product development but I have only NRG-2 kit on hand. I am using NRG-2 project to develop my SW for using DK kit but I found there are 250kHz frequency offset when the software is applied to my HW for using NRG-1 inside. Is...

HLI.16 by Associate
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  • 4 replies
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Spectrum distortion in maximum power setting

Hi all,I am working on NRG-132 for my product development and it is fine for spectrum with Power Level from 0 - 14 (ie -18dBm -- 4dBm). However, when I set to powerlevel = 15 or PA_level in BlueNRG GUI in level 7, the output spectrum will be distort...

HLI.16 by Associate
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  • 0 replies
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Balun options for BlueNRG?

I'm using BlueNRG132 (QFN32) in a custom PCB project. Currently I'm using BALF-NRG-01D3 chip, but I would like to know if there are other options of Balun Chips to use with BlueNRG and 2.4 Ghz (50 Ohm matched) antenna. On the other hand, I would like...

FHern by Associate
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  • 1 replies
  • 0 kudos