Arduino for STM32

I think generally the HardwareTimer API is modelled after generic 'square waves' signal train, flexibly with PWM and interrupts etc. I've not dug into 'oneshot' mode as, more commonly, I used the timer interrupt call back to simply drive my codes. e.g. blink a led in a simple case. I did notice that...

It is probably easier to get an answer on ST's community forums about it, some items from a local stockist is on backorder only, and I don't think it is simply a matter of wanting to do JIT. The semiconductor shortage is precisely this, microcontrollers. As it seemed, there are fewer issues buying e...

dannyf thanks The earlier LM35DZ, I got from AliExpress, didn't work. The current temperature sensors I used are LMT86 . I got them from Farnell element14. They are the real ones from TI. I think these can be recommended. The real LMT86 are certainly good for the premium paid. Earlier on, the troub...

Hello, Just signed up as was trying to figure the "HardwareTimer.h" library with respect to setting the PWM duty cycle. Found the answer; use setCaptureCompare in a thread and, wow what a great forum. Been doing ucontrollers for some time now mainly PIC24 DsP. Tried an UNO and Arduino IDE...

I tried this. heating.png this is a bit brutal but that, fortunately, this is a temperature sensor. So I blow off the candle flame once it touches 100 deg C. :lol: 30-100 deg C in 8 secs ! Sample rate, 10 samples / s. The surface temperature at the LMT86 is possibly much higher, because normally the...

For 'synchronous' comms, try something with SPI, such as an SPI LCD. Once you figured that out, U 'synchronous' RT
https://en.wikipedia.org/wiki/Universal ... ransmitter
becomes easier to understand

Tests with the 1nF in place at the op amp input to GND, this is with the LMV358 op amp, long antenna style wires for the probe, the probe LMT86, an extra 220 uF from 3.3v to GND (bypass capacitor, to bypass all that radio waves on the power supply lines) https://community.st.com/sfc/servlet.shepherd...

I tried patching a 1 nF cap at the ADC input as an RC filter.
bode plot looks like this C = 1nF, R = 44 k ohms (LMT86) -3dB cutoff at 3.6 kHz

step response looks like this looks good.

You can experiment with hardware timers to see if those timer interrupts works in deep sleep modes. I've not tried such yet.
If those works, then it is a solution, as it can drive the interrupts at the frequency you need.
You may like to search app notes from ST to see if there are things about that.

Well, one way though, for timing critical apps, a hardware timer gives the best precision and predictability. That may be useful for timing sensitive apps such as interfacing a sensor over comms etc. But it would cost some power. And I'm not too sure how that works in deep sleep etc, my guess is the...