Search found 85 matches

by roland_vs
Mon Jul 02, 2018 8:05 pm
Forum: Other Boards
Topic: [pyb.ADCAll()] strange results
Replies: 3
Views: 492

Re: [pyb.ADCAll()] strange results

The STM32F091RC also has self calibration, however I added it at line 256 to the adc.c, but need to check if there is a noticeable effect: #if defined(STM32F0) HAL_ADCEx_Calibration_Start(adch); #endif I also added a longer time constant at line 286(290) in the channel configuration, but I see that ...
by roland_vs
Mon Jul 02, 2018 1:49 pm
Forum: Other Boards
Topic: [pyb.ADCAll()] strange results
Replies: 3
Views: 492

[pyb.ADCAll()] strange results

Hello, I'm trying to get the internal voltages of a STM chip and so far I see some odd behaviour: # setting it up from REPL import pyb pyb.ADCAll(12,0x70000) # enter through REPL adc.read_core_temp() adc.read_core_vbat() adc.read_core_vref() adc.read_vref() The results are not exactly what I would e...
by roland_vs
Thu Mar 15, 2018 10:52 pm
Forum: Hardware Projects
Topic: [PYBOARD] CTCSS TONES generation
Replies: 2
Views: 621

Re: [PYBOARD] CTCSS TONES generation

@dhylands : again Dave thanks for the reply. I will try this. Indeed I realized that the prescaler was one higher.
I'm working on hooking up a PYBOARD to my transceiver to be able to access some radio repeaters over here.... and add some morse code for callsign identification.

Regards,

Roland
by roland_vs
Thu Mar 15, 2018 3:05 pm
Forum: Hardware Projects
Topic: [PYBOARD] CTCSS TONES generation
Replies: 2
Views: 621

[PYBOARD] CTCSS TONES generation

Dear all, I would like to generate some odd frequencies with my PYBOARD like: CTCSS_FREQS =[67.0, 69.3, 71.9, 74.4, 77.0, 79.7, 82.5, 85.4, 88.5, 91.5, 94.8, 97.4, 100.0, 103.5, 107.2, 110.9, 114.8, 118.8, 123.0, 127.3, 131.8, 136.5, 141.3, 146.2, 151.4, 156.7, 162.2, 167.9, 173.8, 179.9, 186.2, 192...
by roland_vs
Wed Feb 14, 2018 11:35 am
Forum: General Discussion and Questions
Topic: [NEWS] Article on micropython
Replies: 4
Views: 2008

[NEWS] Article on micropython

Here some story about micropython...

Code: Select all

https://www.digikey.nl/en/articles/techzone/2017/sep/develop-real-time-mcu-based-applications-micropython
by roland_vs
Wed Jan 10, 2018 1:23 am
Forum: MicroPython pyboard
Topic: Support for hardware crypto?
Replies: 7
Views: 1613

Re: Support for hardware crypto?

Thanks!
by roland_vs
Thu Dec 14, 2017 10:40 am
Forum: Hardware Projects
Topic: Electrical network analyser/signal generator
Replies: 10
Views: 2435

Re: Electrical network analyser/signal generator

@pythoncoder You never cease to amaze me!

I'm busy using the AD8302 as a frontend together with a STM32L476 (with MPY) for some RF measurements beyond the 20kHz :-)
But as always your example is inspiring!!!

Roland
by roland_vs
Thu Dec 14, 2017 9:14 am
Forum: Drivers for External Components
Topic: mpy-IMU / fusion with FXAS/FXOS chips
Replies: 11
Views: 2142

Re: mpy-IMU / fusion with FXAS/FXOS chips

Maybe some of the above problems can be handled using the "MotionCal" utility.

Check out: https://github.com/PaulStoffregen/MotionCal

Regards,

Roland
by roland_vs
Mon Dec 11, 2017 10:08 pm
Forum: Other Boards
Topic: I know what I want for Christmas
Replies: 4
Views: 1099

Re: I know what I want for Christmas

Just a thought: Would be a nice STEM platform (as well as a bigger micro:bit) with a few classroom interfaces like the TI 83 Plus programming calculator.
by roland_vs
Thu Dec 07, 2017 8:42 pm
Forum: Development of MicroPython
Topic: adding a modliblib... module
Replies: 4
Views: 788

Re: adding a modliblib... module

@SpotlightKid Thanks!