Search found 847 matches
- Sat Jun 13, 2020 10:05 pm
- Forum: Development of MicroPython
- Topic: Encoder in Hardware with Timer Peripheral
- Replies: 10
- Views: 5878
Re: Encoder in Hardware with Timer Peripheral
Do you get reliable monotonic increments/decrements of the counter with this? In my experience the internal decoding does not handle encoders with switch bouncing (which is most of them) very well. I get the best experience, when handling the pins myself in a pin interrupt handler and keeping the p...
- Thu Jun 11, 2020 11:03 pm
- Forum: ESP32 boards
- Topic: State of Neopixels for esp32 in May 2020?
- Replies: 9
- Views: 15149
Re: State of Neopixels for esp32 in May 2020?
BTW 1 aurdinuos guys took my timer method and put it on steroids so when the interrupt fires it sets all 4 channels of the timers so that 4 bits are sent in parallel and then used 4 of these 8x32 matrix https://www.aliexpress.com/item/32983032723.html?spm=a2g0o.detail.1000014.11.2e626af4nEuAOX&gps-i...
- Thu Jun 11, 2020 10:35 pm
- Forum: ESP32 boards
- Topic: State of Neopixels for esp32 in May 2020?
- Replies: 9
- Views: 15149
Re: State of Neopixels for esp32 in May 2020?
Yes, the SPI method could work - and, wouldn't you know it, Nicko has written a MicroPython library to drive WS281B's with SPI . Anyone able to try it out? Incidentally, RMT allows those paging operations much like the circular buffer you described. I had intended to expose that all the way through...
- Sun Jun 07, 2020 7:26 am
- Forum: ESP32 boards
- Topic: State of Neopixels for esp32 in May 2020?
- Replies: 9
- Views: 15149
Re: State of Neopixels for esp32 in May 2020?
No, the problem with RMT is that the memory has to be pre-allocated and it can be large. We can work around this by pushing interrupts all the way through to MicroPython - so the data is generated on the Python side on-demand but this adds a lot of complexity and pushes timing constraints on to the...
- Sat Jun 06, 2020 9:40 pm
- Forum: ESP32 boards
- Topic: State of Neopixels for esp32 in May 2020?
- Replies: 9
- Views: 15149
Re: State of Neopixels for esp32 in May 2020?
Unfortunately, I believe that is the current state of affairs. I went into a little more detail in the March-April News Roundup . There are a few promising ways we can resolve the issue but, right now, I don't know of any great way to drive that many pixels with the ESP32 from MicroPython. A questi...
- Thu Jun 04, 2020 10:10 pm
- Forum: General Discussion and Questions
- Topic: STM32F407VET6 Black Board freeze
- Replies: 6
- Views: 3168
Re: STM32F407VET6 Black Board freeze
I will suspect that 1 of the pin your trying to use is connected to something that is important to the running of the MCU. Try this commit out every line except the first 1 where you import then uncommit 1 line at a time till you find which line is causing the crash then check the schematic for what...
- Wed Jun 03, 2020 9:45 pm
- Forum: Other Boards
- Topic: New STM32H743VIT6 dev boards
- Replies: 36
- Views: 77452
- Tue Jun 02, 2020 9:33 pm
- Forum: Other Boards
- Topic: New STM32H743VIT6 dev boards
- Replies: 36
- Views: 77452
Re: New STM32H743VIT6 dev boards
I have found this board delivered for $26AUD https://www.aliexpress.com/item/4001048553596.html?spm=a2g0s.9042311.0.0.3da24c4d5Oqsga at that price I just have to get 1. Considering the amount of flash and RAM on this board and the fact it has both a header for a small SPI TFT and a FPC connector for...
- Tue Jun 02, 2020 5:08 am
- Forum: Hardware Projects
- Topic: MicroPython based 3D printed drawing robot powered by a TTGO T-Display
- Replies: 14
- Views: 56790
Re: MicroPython based 3D printed drawing robot powered by a TTGO T-Display
Sounds like you have put a considerable amount of time and effort into developing this project. I notice you have also created great dos as well.
If you were to guess the total hours to get your design to this standard how many hours do you think you have spent??
If you were to guess the total hours to get your design to this standard how many hours do you think you have spent??
- Tue Jun 02, 2020 3:30 am
- Forum: Hardware Projects
- Topic: MicroPython based 3D printed drawing robot powered by a TTGO T-Display
- Replies: 14
- Views: 56790
Re: MicroPython based 3D printed drawing robot powered by a TTGO T-Display
Did you design all the hardware yourself??