About brian239955_stm1

brian239955_stm1 · 2022-01-14

Hi, I'm starting a new project for a client that needs a sub-1 GHz transmitter and receiver. The distance between the 2 communicating devices will be fixed at approximately 5 ft apart. There will be potential obstructions of metal between the 2 devic...

brian239955_stm1 · 2021-06-18

I need to develop a low-power embedded device with pedometer functionality. I'm looking at the LIS3DH because of it's low power, but there's no built-in pedometer application. I've also looked at the LSM6DSL, as it has built-in pedometer support, but...

brian239955_stm1 · 2019-10-16

I'm using a WB55 Nucleo board and setting up a BLE connection with a 2nd WB55 Nucleo board using aci_gap_create_connection(). The connection succeeds and I am able to transfer data between the 2 boards. I would then like to terminate the connection. ...

brian239955_stm1 · 2019-09-30

I'm using BLE_p2pRouteur example code. In app_conf.h, CFG_TX_POWER is #defined to 0x18, and the comment next to it says 0 dbm. This parameter gets passed to aci_hal_set_tx_power_level(1, CFG_TX_POWER). The documentation of this function in UM1865 ...

brian239955_stm1 · 2019-09-04

I need to develop an STM32WB55-based BLE system that consists of 2 parts. Each part will have a button on it as well as a sensor. When a button is pressed on one device, it needs to inform the other device, as well as communicate its sensor value. ...

brian239955_stm1 · 2021-06-21

Thanks for the concise details Eleon - this is exactly the info I needed!Brian

brian239955_stm1 · 2019-10-16

Hi Vyacheslav, Thanks you for the quick response. Your solution works well!Brian

brian239955_stm1 · 2019-10-02

Thanks Remi! This was the pointer I needed. Apparently, UM1865 is not applicable to the WB55.

brian239955_stm1 · 2019-09-17

Hi Joe, I've played with the p2pRouteur example, but have gone back to the p2pClient and p2pServer examples. Since I don't have a phone as a central in my system, these seemed to be closer to what I need. I'm still struggling with trying to reduce...

brian239955_stm1 · 2019-09-05

Hi Joe, Thanks - this worked well! I modified the tab_conn_interval array and can now get a latency down around 10ms.Brian

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Need hardware and firmware recommendation for sub-1GHz radio project

Ultra-low power IMU for step counting

Error when trying to terminate BLE connection

How to set TX power

Best starting point to minimize BLE delays

Re: Ultra-low power IMU for step counting

Re: Error when trying to terminate BLE connection

Re: How to set TX power

Re: Best starting point to minimize BLE delays

Re: How to reduce BLE notification latency