Search found 791 matches

by OutoftheBOTS_
Fri Oct 09, 2020 1:52 am
Forum: ESP32 boards
Topic: newbie issue with i2c
Replies: 10
Views: 399

Re: newbie issue with i2c

I have set both pins to input pullup before setting up the I2C has fixed this problem in the past.
by OutoftheBOTS_
Wed Sep 02, 2020 8:43 am
Forum: Programs, Libraries and Tools
Topic: is creating a Region of interest possible?
Replies: 3
Views: 281

Re: is creating a Region of interest possible?

it isn't that snapshot as that function, it is the fact that snap shot returns an array and this is how you can cut out of an array
by OutoftheBOTS_
Tue Sep 01, 2020 6:07 am
Forum: Programs, Libraries and Tools
Topic: is creating a Region of interest possible?
Replies: 3
Views: 281

Re: is creating a Region of interest possible?

I haven't used this board but to cut out a square ROI then something like this

Code: Select all

img = sensor.snapshot()[y:y+h, x:x+w]
by OutoftheBOTS_
Wed Aug 26, 2020 9:45 pm
Forum: Programs, Libraries and Tools
Topic: How to Build and Debug MicroPython Source Code with Eclipse
Replies: 15
Views: 2412

Re: How to Build and Debug MicroPython Source Code with Eclipse

Not sure oif this will help but I use system workbench for all my STM32 projects. Which is also derived from eclipse and has all the needed toolchains and linker setup see https://www.st.com/en/development-tools/sw4stm32.html
by OutoftheBOTS_
Sun Aug 16, 2020 10:31 am
Forum: Other Boards
Topic: [ADAFRUIT_F405_EXPRESS] neopixel port advice
Replies: 2
Views: 317

Re: [ADAFRUIT_F405_EXPRESS] neopixel port advice

If you are confident in understanding how MP works you could implement the Neoplixel driver I made using a timer interupt to send the data. See here https://github.com/OutOfTheBots/STM32_NEOpixels_timer It has been tested on a STM32F407 there might be a few small tweeks for it to do eactly what you ...
by OutoftheBOTS_
Sat Aug 15, 2020 10:20 pm
Forum: Programs, Libraries and Tools
Topic: Can't get my NeoPixels to turn on
Replies: 27
Views: 3662

Re: Can't get my NeoPixels to turn on

From the googling that I have done this seems to be the most common method for creating neopixle timings. basically work out how many NOPs are needed to get correct timings. Although it gets the job done it isn't very flexible to be able change the timings or running on different CPU freq MCUs. You...
by OutoftheBOTS_
Sat Aug 15, 2020 10:25 am
Forum: Hardware Projects
Topic: omni directional dead reckoning
Replies: 1
Views: 280

omni directional dead reckoning

I have build an omni directional robot that can move with 3 DOF (x linear, y linear and w rotation). I do have another video (on my youtube channel) where I explain how I work out what speed to drive which motor to give me the desired x, y, w speeds. I have now worked out how to keep an accurate dea...
by OutoftheBOTS_
Fri Jul 24, 2020 3:35 am
Forum: General Discussion and Questions
Topic: Low level stepper motor functionallity
Replies: 0
Views: 674

Low level stepper motor functionallity

There has been a few times where people have asked about functionality for using steppers in MicroPython. Atm there isn't any real way to do this because speed at which the ramp up and ramp down step pulses need to be generated at. I have made public my basic C code for being able to generate steppe...
by OutoftheBOTS_
Mon Jul 13, 2020 6:50 am
Forum: Development of MicroPython
Topic: Getting Started with STM32
Replies: 5
Views: 574

Re: Getting Started with STM32

I use dfusedemo from ST to flash .DFU files to STM32 boards under windows
by OutoftheBOTS_
Sat Jul 11, 2020 9:21 pm
Forum: Pyboard D-series
Topic: STM32H7 future
Replies: 3
Views: 397

Re: STM32H7 future

I do believe some people have started some support for these boards too https://www.aliexpress.com/item/4000300005466.html?spm=a2g0o.productlist.0.0.78504a2b7ZvFMi&algo_pvid=c6eab1dd-8940-4c9f-a358-6b1a58a69915&algo_expid=c6eab1dd-8940-4c9f-a358-6b1a58a69915-1&btsid=0ab50f6115945021843615388e8d7d&ws...