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Rvan .8
Associate II
since ‎2021-08-23
‎2023-06-14

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I am using the NUCLEO-WL55JC1 board to transmit LoRa 868MHz using low-power mode (14dBm). However, when I measure the signal in a noise free radio lab, the received signal power is incredibly low - has anyone encountered something similar?

2021-10-12
Details:TX Power on Board: 14dBm (LP)Omnidirectional TX antenna (on board): 2dBiDirectional RX antenna (LPDA): 4dBiDistance: 0.5m free space with minimal interference in labFrequency: 868MHzFSPL (868MHz @ 0.5m) = -25dBExpected P_ in RX: -5dBmMeasure...

SUBGHZ_PHY middleware: why is it necessary to configure the UART? Is it possible to transmit a LoRa message without using the UART pins?

2021-10-04
I am trying to transmit a single int using LoRa and the SUBGHZ_PHY middleware. However, I am unsure as to why UART has to be configured under 'Platform Settings', and how I can setup the STM project for this purpose. I am using STM32CubeIDE, and a Nu...

I am currently using the SUBGHZ_Tx_Mode Example from the STM32WL examples from the ST Website. I would like to know (1) whether it is possible to change it to configure to transmit via LoRa 868MHz? (2) I am unable to edit the clock configuration HSE freq

2021-09-30
My questions are as follows, based on the use of the SUBGHZ_Tx_Mode Example project for the NUCLEO-WL55JC board. (1) Can I use it to transmit LoRa radio on 868MHz? It doesn't specify in the readme file. (2) When editing the .ioc file in STM32CubeIDE,...

Trying to modify message transmitted using project LoRaWAN_End_Node or other alternative

2021-09-18
I am busy creating a project using the Nucleo-wl55jc board, and am trying to modify the message transmitted to the gateway. How can I do this? I am new to LoRa and LoRaWAN, so am struggling to understand specifically the MX_LoRaWAN_Process() function...

UFBGA73 Mounting to PCB Due to unavailability of STM32WL55CC, I am using the STM32WL55JC with the UFBGA73 package. However, it is not possible for me to use a multi-board pcb printer / the minimum clearance is too large to be able to route out.

2021-08-24
Please advise on mounts / bga-to-pin adapters or sockets that I can mount on a pcb so that I can still use this chip. Thanks in advance.
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