Search found 627 matches

by OutoftheBOTS_
Fri Dec 22, 2017 10:25 am
Forum: ESP32 boards
Topic: SPI SSD1306
Replies: 8
Views: 2425

Re: SPI SSD1306

I am using a ili9341 screen on my new ESP32. I am using a driver that I originally wrote for the esp8266 see https://github.com/OutOfTheBots/ili9341-tft I have run it on my ESP32 WROVER board but changed the pins used from the ESP8266 needed pins to ESP32 pins 12,13,14. It gibes me an error of I try...
by OutoftheBOTS_
Mon Dec 18, 2017 9:02 am
Forum: ESP32 boards
Topic: What are ESP32 SPI Ports for Micropython SPI(1)?
Replies: 15
Views: 10099

Re: What are ESP32 SPI Ports for Micropython SPI(1)?

I have just changed over from ESP8266 to the ESP32. I have a Wrover board with 4mb SPI flash and 4MB SPI Ram. I am playing with a ili9341 SPI screen. I can get it to work using any GPIO pins using software SPI and am suprised by the speed of the software SPI on the ESP32 compared to the very slow so...
by OutoftheBOTS_
Sun Dec 17, 2017 9:03 pm
Forum: Drivers for External Components
Topic: mpy-IMU / fusion with FXAS/FXOS chips
Replies: 11
Views: 2201

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

Yes although it is probably the most expensive option that I have looked at it by far seems the be the best. It is obvious he has invested many hours to be able to develop it. I Do generally enjoy building my own rather than just using something else some else built but I think with the complexity a...
by OutoftheBOTS_
Sat Dec 16, 2017 8:39 pm
Forum: Drivers for External Components
Topic: mpy-IMU / fusion with FXAS/FXOS chips
Replies: 11
Views: 2201

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

Thanks for that :) It just keeps showing me just how complex it is to get accuracy orientation of my robots. It looks like it will take me some serious hours coding and experimenting to get both the mag calibration and the fusion filter doing what I want. It will be interesting to see how the Motion...
by OutoftheBOTS_
Mon Dec 11, 2017 7:42 pm
Forum: General Discussion and Questions
Topic: SPI start stop latency
Replies: 7
Views: 1414

Re: SPI start stop latency

I seem to get more like 22kb free but I am also using webrepl

Thanks for that I haven't yet played with frozen byte codes or read the docs about it but it is on my list.

I will google frozen byte code and learn how to use it. I amuse that I will need a Linux machine for compiling.
by OutoftheBOTS_
Sun Dec 10, 2017 8:38 am
Forum: General Discussion and Questions
Topic: SPI start stop latency
Replies: 7
Views: 1414

Re: SPI start stop latency

Thanks for your response. Yes there is definitely the law of demising returns. I certainly find that chunks as big as 1kb are far far far faster than doing 1kb as 1000 bytes. Once I get too much above 1kb you notice it is slightly faster but not heaps (diminishing returns). The Python language provi...
by OutoftheBOTS_
Wed Dec 06, 2017 9:20 pm
Forum: General Discussion and Questions
Topic: SPI start stop latency
Replies: 7
Views: 1414

Re: SPI start stop latency

Thanks for your response. Micro-Python hspi.write(data) can only take byte array as a parameter, is it needed that Micro-Python converts all the values it needs from Python types to C types? This leads on to 2 more questions. Q1. Python is a higher level language with more checks than C. Is it possi...
by OutoftheBOTS_
Wed Dec 06, 2017 2:32 pm
Forum: Drivers for External Components
Topic: ILI9340/ILI9341 TFT Display
Replies: 34
Views: 14326

Re: ILI9340/ILI9341 TFT Display

I have added the scale-able text placer and remover to the master branch. You can choose the foreground and background colour of the text as well as the scale size. There is also a text remover so when you place text ontop of a back ground image you can remove the text and restore the backgound imag...
by OutoftheBOTS_
Wed Dec 06, 2017 1:58 pm
Forum: Drivers for External Components
Topic: mpy-IMU / fusion with FXAS/FXOS chips
Replies: 11
Views: 2201

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

This is what I have seen guys mounting them on poles sticking up from their robot to minimize the problem.
by OutoftheBOTS_
Wed Dec 06, 2017 10:25 am
Forum: Drivers for External Components
Topic: ILI9340/ILI9341 TFT Display
Replies: 34
Views: 14326

Re: ILI9340/ILI9341 TFT Display

I have added the basic scale-able text putter to a branch of the github. Same as the image putter it is juts at beginning stage and still has lots of development still to do.

scale-able text putter here https://github.com/OutOfTheBots/ili9341 ... /README.md