About HAbay.1

HAbay.1 · 2021-09-29

This has been a reoccurring issue for me, whenever I raise the ADC frequency above 0.25MHZ the while loop gets interrupted, and when I use frequencies below that the ADC resolution drops to 8 bits for an unknown reason. Is there a way to fix this wi...

HAbay.1 · 2021-09-08

I want to use an SR latch to detect the alarm pulse on the tamper pin ( STM32F103C8T6), is this possible in Vbat mode? if it is, then what amplitude is this pulse (I am asking because it might be possible that the pulse wasn't high enough for the sr...

HAbay.1 · 2021-08-23

I am working on a low power project using the stm32f103c8 (bluepill) and for some reason, the lcd refuses to work in low frequencies (500KHZ) , it works just fine in high frequencies (72MHZ) mind you. is it something related to the I2C clock? I've tr...

HAbay.1 · 2021-08-16

I've been trying to implement a clock and calendar into my solar tracker project(using an stm32f103) so that I can set at which time it should go to sleep ( and for how long) , but every time the board goes into standby the counter -unfortunately- ge...

HAbay.1 · 2021-08-09

I am referring to the regulator connected to the usb 5V ( the 5V pin), can it handle a voltage of 12v and step it down to 3.3V for the chip? if not then what is the limit?

HAbay.1 · 2021-09-29

as it turns out, I set the data length to byte instead of word which is why i was getting small values.

HAbay.1 · 2021-09-29

How do I increase the number of samples per interrupt? Also UART doesn't really matter for my project it's just to show that the resolution drops.

HAbay.1 · 2021-09-29

Also , how come the ADC resolution drops to 8 bits?

HAbay.1 · 2021-09-29

and how exactly does one do that ? excuse me if it's something obvious because I'm rather new to micro-controllers and such.

HAbay.1 · 2021-09-13

Thank you for helping out!

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ADC(with DMA) doesn't work when I increase its frequency

Is there an output-on-tamper pulse when the RTC alarm is triggered in Vbat mode?

LCD (with PCF8574 I2C module ) doesn't work when using HSI in 0.5MHZ .

Can you write values to the RTC counter registers(RTC_CNTL/RTC_CNTH) after you've set them to an intial value?

What is the maximum input voltage for the external voltage regulator of the stm32 bluepill?

Re: ADC(with DMA) doesn't work when I increase its frequency

Re: ADC(with DMA) doesn't work when I increase its frequency

Re: ADC(with DMA) doesn't work when I increase its frequency

Re: ADC(with DMA) doesn't work when I increase its frequency

Re: Is there an output-on-tamper pulse when the RTC alarm is triggered in Vbat mode?