Arduino for STM32

Hey everybody :) I'm using the STM32RTC.h lib on a Bluepill and would like to print data and timestamps into a .csv file. I think rtc.getSubSeconds should give back milliseconds or am I wrong? I tried a small example and get back only zeros. Does somebody know what I am doing wrong? #include "S...

This might be a really stupid question, but I'm a little bit confused. I use an int16_t variable in a bluepill Programm and would like to do some bit operations - but it does not work as i expect it. when I use Serial.print() i would expect something with 4 Hex Variables, but it returns 8: int16_t c...

Thanks! it works fine! I was confused because of the "new" in Hardwaretimer *MyTim = new HardwareTimer(Instance); I think I lack the deeper understanding of programming... if anyone would like to explain it, I would be grateful - but it is not necesseray to mark this post as solved. greets...

Hey :) I'm working with the example https://github.com/stm32duino/STM32Examples/blob/master/examples/Peripherals/HardwareTimer/PWM_FullConfiguration/PWM_FullConfiguration.ino and it works quite well on my BluePill board! question: Is it possible to update frequency and DutyCycle in the loop Function...

ok, that's good to know! But what about the Layout? USB has a 5V Level and the STM is at 3.3V. So i do not knwo how to design the PCB of the USB connection correctly. Any ideas or examples? greetings, Jens EDIT: Ok, i was just to stupid to google. Found something! https://www.mikrocontroller.net/wik...

Hey Thanks for your reply!

Do you also have any ideas about the USB question?

Hey everybody, i would like to design my own STM32F103 Board. There should be an micro SD Card reader on it and also an easy way to programm the board with USB. For the SD Card It seems to be a really straight forward design if you use SPI and the 3.3V Level of the STM32. Is it that easy?! just conn...

Hey :) thanks for your answer! with the updatet wire.h library it works most of the time. Sometimes i do have a breakdown on the second i2c Bus. (attached picture) i2c2_breakdown2.JPG Could be the reason, that I reuse the same variable to store the Sensor Variable and then send them away? Is it poss...

Hey everybody, I'm playing around with a bluepill Board. The Idea is to create a few boards with STM32F103 Prozessors. These Boards shell collect data and do some other stuff. Sometimes a Raspberry will collect some data. (Sometimes in fact is 10ms ;) ) Currently i'm using a Raspberry pi 4 as an I2C...

Hey everybody, my name is Jens and currently I'm working on a project in which I will use STM32 boards to control different sensor Modules and communicate with each other. The idea is to have a Master and some slaves. The slaves collect data from sensors and do some control work. The Master will col...