STM32 MCUs Wireless

Resolved! Help debugging power consumption in low-power modes on an stm32wle target

Hi!I have a custom board built around an STM32WLE5CCU7.My problem is that it consumes way to much power (100 times expected).110uA in Shutdown and Standby190uA in STOP2 WFI.CubeMX power tool estimates these two modes to at most 0.640uA and 1.3uA resp...

STM32WLE restarts after exiting Standby instead of continuing the execution

Hello,I'm porting the code developed for the STM32WL55 development board to a STM32WLE5.Using the STM32WL55 I had no issue in putting the board into STOP2 and STANDBY, restoring the execution of the program after wakeup from RTC interrupt.However, I'...

Resolved! STM32WLE immediately exist Stop2 when using UTILS_ENTER_CRITICAL_SECTION()

I am doing a LoRaWAN project on the STM32WLE and so I want to power it down in Stop2 mode to lower the power consumption.Using the following code, this works fine : UTILS_ENTER_CRITICAL_SECTION(); ...

STM32WB55 Low power mode implementation. I am using STM32WB55UG custom board, I am following PWR_STOP1 and PWR_STOP2_RTC examples to put my device in to STOP1 or STOP2 low power modes

After following these examples I am unable to put the device in STOP1/2 low power modes.Can someone please help with implementing low-power modes

How to switch I2C pull up when STOP MODE 2 on STM32WLE

Hello,I have a STM32WLE that works with the lora end_node projectI have a sensor that i power up with a mosfet when needed.But during the time that the chip is sleeping i need to disable the internal I2C pullup (+30 uA more due to the fact that the V...

What can prevent entering STOP mode? (STM32WB)

After some activity using BLE in the background and UART as well as some EXTI on application side, the consumption jumps from 2,4µA to 4mA, so obviously I have a wakelock. If I hotplug to the system afterwards, I can see in PWR_EXTSCR that Stop mode ...

Is it possible to power an STM32WLE5 with variable voltage ?

Hello,I would like to power an STM32WLE5 with two voltage levels:VBAT: 2 series AA batteries, yielding a voltage comprised between (~3.2V and ~2V) over the life of the batteries.VBOOST: A boosted voltage from the batteries with a target of 3V. If the...

I want to achieve 4uA of sleeping current in STM32WLE5CCU6 + RAK3172 using STM32CubeIDE.

Hi All,Currently I am working on STM32WLE5CCU6 + RAK3172 using STM32CubeIDE. So I am checking sleeping current.Currently I am getting 340uA of sleeping current.I want to make it reach to 4uA.Can anyone guide me how can I achieve that. I have some dou...

Resolved! STOP2 low power on STM32WB55 with BLE connection wakeup

Hello all,I am running a custom BLE application on STM32WB55 and I want to implement low power STOP2 mode because it's the deepest while RF is still alive. The idea is to periodically wakeup, procced some data and go back to STOP2. I may also need to...

[Nucleo -STM32WB55 ] How to enter the low power mode and wake up the device through the wake-up pin when the thread function is turned on ?

Hello everyone:I created a thread udp project through the official Max 6.7 version of the IDE and applied it to two Nucleo -STM32WB55 development boards for thread data transmission.(One as FTD equipment, one as MTD equipment)I want to let the MTD...