About JasonYang

JasonYang · 2024-10-14

Hi,I am trying to write the IQ data to the SD card (i.e., write the received CTE pkt to the SD card). However, I found that Bluenrg-332ac has a cortex M0 core, which may not be able to drive an SD card. Is it possible to use this cortex M0 core for S...

JasonYang · 2024-09-05

Hi all,As IQ samples are used in the direction-finding feature, I am wondering how I can extract the phase information from the sampled IQ data. I tried to extract the phase by arctan(Q/I), but it changed very quickly. Is this because of the low IF a...

JasonYang · 2024-04-22

Hi,I am using the Bluenrg-332ac and the eval board BlueNRG-LPS STEVAL-IDB012V1. I used the 'hci_le_connectionless_iq_report_event' function to extract IQ signals and RSSI. However, the magnitude, which is derived from the IQ samples, fluctuates dram...

JasonYang · 2024-03-09

Hi everyone,I am currently working on a PCB design using a Bluenrg-332ac chip. The official PCB design guideline has a resistor marked "X" as shown on the left of the figure below. But I saw the resistor soldered on the eval board. Can anyone explain...

JasonYang · 2024-02-26

Hi everyone,I am currently designing my own PCB board using the bluenrg-332ac chip. I want to use the ufl/SMA port to connect my antenna without connecting the PCB antenna. So I wonder how to remove the PCB antenna from the PCB layout with only UFL p...

JasonYang · 2024-10-15

Thanks Andrew! I also wanna ask can I use cubeMX to build programs for the Bluenrg-332ac chip?

JasonYang · 2024-09-05

Hi,Sorry about the confusion. I tried using Bluetooth to see the magnitude and phase changes when the signal permeates through a specific material. For my current setup, I have one Tx and one Rx (both are BlueNRG-332AC eval board) close to each other...

JasonYang · 2024-03-28

Hi Laurent,Thank you for your reply! I also want to ask if we remove R1 here, do we still need to connect the VBLUE to the circuit?Regards,Jason

JasonYang · 2024-02-28

Hi,In my case, I only connect my antenna to the UFL connector externally instead of placing the antenna on the PCB. So, do I still need to design a matching network in front of the ufl connector? (I thought only a C20 was needed)Best,Jason

JasonYang · 2024-02-28

Hi Laurent,Thank you for your answer! I also want to ask what the black "X" means, plotted on the matching network C11 and C10. Does that mean the capacitor is optional?Best,Jason

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Write SD card using bluenrg 332ac

Is it possible to extract phase from "direction finding"?

Problem with IQ signal for the direction finding feature

PCB design question of Bluenrg-LPS (Bluenrg-332ac)

PCB design problem with Bluenrg-332ac

Re: Write SD card using bluenrg 332ac

Re: Is it possible to extract phase from "direction finding"?

Re: PCB design question of Bluenrg-LPS (Bluenrg-332ac)

Re: PCB design problem with Bluenrg-332ac

Re: PCB design problem with Bluenrg-332ac