About Exeu

Exeu · 2024-06-16

Hi,i am trying to develop a device which sends out bthome advertisements via ble (some sensor data).So far so good, this part is working, but now i would also like to use bthome encryption.https://bthome.io/encryption/So following this guide, i would...

Exeu · 2024-06-15

Hi there,if i try to set my stm32wb55cg into standby, it seems to only work if the RFWakeupCLK is HSE-DIV1024void PeriphCommonClock_Config(void) { RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0}; PeriphClkInitStruct.PeriphClockSelection = RCC_...

Exeu · 2024-06-12

Hi there,i am currently working on a BLE Customboard using a STM32WB55.The current setup allows for a 1 second long BLE Advertising, to transmit sensor data.After this second the device is going into STANDBY MODE using the tiny_lpm class: // from app...

Exeu · 2024-06-08

Hi,i am currently trying to read out VBAT of a STM32WB55CGU6 Board (Custom).VBAT is connected to a 3V Battery, and all other VDD pins are connected to the same battery since the board is only powered by this battery.I have setup ADC1 and enabled the ...

Exeu · 2024-05-18

Hi there :waving_hand:I am quite new to the topic of developing BLE hardware.My goal of the current project is quite simple:I have a custom board featuring stm32wb55ceu6 and a ambient temperature/humidity sensor.All hooked up including the RF part wi...

Exeu · 2024-06-21

Yes i also thought about a LPTIM, but as per datasheet it seems LPTIM is not available in Standby anymore.But i think the solution is fine for now Thanks

Exeu · 2024-06-18

Hi @Lubos KOUDELKA ,Thanks for the answer. I try to achieve to set the device into standby fully. There should be no activity on BLE at this point. I only have a rtc running which should wake the board up after 10 minutes.Hse I don't need therfor. If...

Exeu · 2024-06-13

Thank you for the info @Sarra.S ,My device is in standby most of the time, i only need to wake it up after every 10 minutes. Then do some stufff for 0.5 seconds and then go back to standby.Currently i solved this by using theHAL_RTCEx_SetWakeUpTimer_...

Exeu · 2024-06-12

Hey @Sarra.S.Thanks for the answer.Yes I am addressing those spikes in standby mode. I guess this is not avoidable or? My setup does not have any external wakeup.it needs to wakeup after a certain amount of time. So I guess rtc wakeup timer is the on...

Exeu · 2024-06-09

Thank you for this hint with the code!This actually lets the whole thing appear much simpler now.I thought i would need to somehow "enable" VREFINT in some registers first to tell the ADC to actually use it and also first fetch from somewhere the oth...

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Encryption using AES CCM + MIC - stm32wb

Stand-By mode when RFWakeupCLK is LSE

Standby mode - Power peaks when measuring power consumption, a normal thing?

Measuring VBAT on stm32wb55cgu with ADC

Simple BLE advertising application

Re: Standby mode - Power peaks when measuring power consumption, a normal thing?

Re: Stand-By mode when RFWakeupCLK is LSE

Re: Standby mode - Power peaks when measuring power consumption, a normal thing?

Re: Standby mode - Power peaks when measuring power consumption, a normal thing?

Re: Measuring VBAT on stm32wb55cgu with ADC