Search found 5956 matches
- Mon Nov 30, 2020 8:09 am
- Forum: Development of MicroPython
- Topic: Tensorflow and about contributing
- Replies: 18
- Views: 13910
Goertzel algorithm
... I'd definitely like to see your MicroPython implementation, thanks! I'm not sure it will work because I want to create a smart lock that can open based on a short spoken phrase and/or a short melody... Here it is. Note that it includes a Pyboard-only tone generator so that it can self-test. # T...
- Sun Nov 29, 2020 4:52 pm
- Forum: ESP32 boards
- Topic: Best driver for ili9341 display
- Replies: 40
- Views: 26073
ili9341: possible GUI support
I am currently actively considering supporting the ili9341, but there are issues. These displays are too large for use with framebuf.FrameBuffer because of the size of the necessary buffer. The chip needs a dedicated GUI like my touch GUI for the official LCD160CR display. That is more involved than...
- Sun Nov 29, 2020 10:05 am
- Forum: ESP32 boards
- Topic: Best driver for ili9341 display
- Replies: 40
- Views: 26073
Re: Best driver for ili9341 display
It's hard for me to comment in detail as I haven't used the ili9341. However I have written drivers and a GUI for various other SPI connected displays. This is aimed at smaller displays than those supported by the ili9341. The drivers work by maintaining a frame buffer using the framebuf.FrameBuffer...
- Sat Nov 28, 2020 6:05 pm
- Forum: ESP32 boards
- Topic: Best driver for ili9341 display
- Replies: 40
- Views: 26073
Re: Best driver for ili9341 display
The Loboris port was abandoned long ago. It's probably best ignored. Have you considered the SPI baudrate? The ili9341 can handle up to 10MHz for writes, and up to 6.66MHz for reads. If you choose one of the hardware buses the ESP32 can support these rates easily. You may find that speeds things up.
- Fri Nov 27, 2020 9:42 am
- Forum: General Discussion and Questions
- Topic: Threads in xbee 3
- Replies: 16
- Views: 7507
Re: Threads in xbee 3
- Fri Nov 27, 2020 9:38 am
- Forum: General Discussion and Questions
- Topic: How to read LED state?
- Replies: 3
- Views: 1527
Re: How to read LED state?
The Pyboard 1.1 schematic shows the red LED on pin A13 / P5. This is adjacent to pin X21.
- Fri Nov 27, 2020 9:30 am
- Forum: Development of MicroPython
- Topic: Tensorflow and about contributing
- Replies: 18
- Views: 13910
Re: Tensorflow and about contributing
AI might be overkill for tone detection. Have you investigated the Goertzel algorithm? I have a MicroPython implementation if that's of any interest.
- Mon Nov 23, 2020 6:12 pm
- Forum: General Discussion and Questions
- Topic: pyboard only write to file last value measured by the ADC
- Replies: 3
- Views: 1343
Re: pyboard only write to file last value measured by the ADC
You may be encountering this problem.
- Mon Nov 23, 2020 9:23 am
- Forum: General Discussion and Questions
- Topic: Connecting to an MS5541-CM Pressure sensor
- Replies: 2
- Views: 1321
Re: Connecting to an MS5541-CM Pressure sensor
It does appear to use an SPI interface, with SCK connected to device sclk , MOSI to device din , and MISO to dout . The SPI bus can run up to 500KHz. You will also need to source a 32.768KHz square wave to mclk : this is a standard watch crystal oscillator frequency, but the pressure sensor will acc...
- Sat Nov 21, 2020 10:27 am
- Forum: Development of MicroPython
- Topic: micropython origins?
- Replies: 4
- Views: 2659
Re: micropython origins?
That ref is slightly out of date. MicroPython now includes some features from 3.8 including the "walrus operator" and elements of uasyncio.dhylands wrote: ↑Fri Nov 20, 2020 7:55 pm...
This page: http://docs.micropython.org/en/latest/genrst/index.html says that if currently "implements Python 3.4 and some select features of Python 3.5".