Search found 678 matches

by OutoftheBOTS_
Fri Aug 23, 2019 4:50 am
Forum: Development of MicroPython
Topic: ADC sampling with DMA/interrupts
Replies: 5
Views: 756

Re: ADC sampling with DMA/interrupts

I am certainly a noob but have played a little with DMA, ADC and interrupts. So far the HAL libraries have made another layer of confusion so I have mainly played with writing directly to the registers but am slowly trying to learn to use HAL. Also my experence is mainly wiht STMF4 MCUs. Now if I un...
by OutoftheBOTS_
Sun Aug 18, 2019 8:32 pm
Forum: Other Boards
Topic: Help needed for connecting a Black STM32F407VET6 to an 3.2 TFT LCD
Replies: 7
Views: 3200

Re: Help needed for connecting a Black STM32F407VET6 to an 3.2 TFT LCD

STMdunio is now dead and all the knowledge that was on it is now gone :( I have used a ILI9431 TFT on a STMF407VETG but only with code that I wrote in C and the screen was a little different to the more expensive 1 that plugs directly into the header on the board. I have now brought 1 of the officia...
by OutoftheBOTS_
Fri Aug 16, 2019 8:57 pm
Forum: Other Boards
Topic: Maixy face tracking robot issues
Replies: 2
Views: 202

Re: Maixy face tracking robot issues

Maxy can be easily interfaced with Arduino via UART serial but I can't see why you would want to do this because the Maxy would have 1000x the processing power of an Ardunio and I would suggest you just add the Z axis code to the Maxy code. I made a robot ant many years ago that would follow around ...
by OutoftheBOTS_
Mon Aug 12, 2019 6:39 am
Forum: ESP32 boards
Topic: Trouble connecting to SPI display sh1106
Replies: 9
Views: 510

Re: Trouble connecting to SPI display sh1106

The on board OLED on the Heltec wifi ESP32 appear to be connect via I2C. https://github.com/dakschnitzer/time-guide/blob/master/embedded/esp32/WIFI%20Kit%2032.pdf These little OLED can be wired many ways: I2C, SPI 3 wire, SPI 4, 8 bit parallel or even 16 bit parallel. The low res of the OLED coupled...
by OutoftheBOTS_
Sat Aug 10, 2019 9:12 pm
Forum: General Discussion and Questions
Topic: working with Micropython - which ecosystem to choose - ESP 8266 or ESP 32?
Replies: 3
Views: 394

Re: working with Micropython - which ecosystem to choose - ESP 8266 or ESP 32?

I personally like the ESP32 because it is so much more capable than the ESP8266 which I used before switching to ESP32. The ESP8266 is about the cheapest platform you will ever find and very good value for money. The ESP8266 also has a version of BASIC that will run on it and I used that for my kids...
by OutoftheBOTS_
Thu Aug 08, 2019 7:59 am
Forum: MicroPython pyboard
Topic: more detail tutorial for external C modules?
Replies: 6
Views: 402

Re: more detail tutorial for external C modules?

We actually (sort-of) did both. The 'standard' way to do it is to build the MP firmware and include the (unchanged) QR C code, adding a wrapper to expose an interface to MicroPython that maps to the C functionality. This way the MicroPython firmware, deployed to the device, contains a QR module. It...
by OutoftheBOTS_
Thu Aug 08, 2019 6:57 am
Forum: MicroPython pyboard
Topic: more detail tutorial for external C modules?
Replies: 6
Views: 402

Re: more detail tutorial for external C modules?

Hi starter111, At the recent PyCon AU I just gave a talk on Extending MicroPython by using C modules. I intend to put together a github repo with the example code but the slides are available, though it was mostly about "here's what can be done" rather than the actual details. I did - very briefly ...
by OutoftheBOTS_
Wed Aug 07, 2019 8:34 pm
Forum: Other Boards
Topic: Teensy 4.0
Replies: 5
Views: 1543

Re: Teensy 4.0

There has been some other very fast open source boards around for some time. The older Lichee Pi For NanoFW(16M) Cross-Border Core Board with WIFI Module + TF WIFI Adapter Development Board with an ARM 926EJS running at 900MHz, this thing is the size of an SD card https://www.aliexpress.com/item/329...
by OutoftheBOTS_
Tue Aug 06, 2019 3:49 am
Forum: Programs, Libraries and Tools
Topic: Stage — a tile and sprite engine for making games
Replies: 3
Views: 525

Re: Stage — a tile and sprite engine for making games

Very cool project :) I would love to sit down and design my own little PCB and solder it up then load MP and this library and make some cool little games, it would be an awesome project to do with my kids. Unfortunately I can never find the time to play with these projects and I can only add it to t...
by OutoftheBOTS_
Mon Aug 05, 2019 9:21 pm
Forum: ESP8266 boards
Topic: Micropython crashing and rebooting every 9seconds
Replies: 22
Views: 982

Re: Micropython crashing and rebooting every 9seconds

Have you run it from the same battery pack you used while in the wild at home in your flat?? The EN pin must be held high without any dips and if you have a poor power supply or not enough capacitance on the EN pin then it can dip. I have found if it dips the tiniest then you get ghosts in the machi...