Search found 171 matches

by Ollie
Thu Jul 27, 2017 10:04 pm
Forum: All other boards
Topic: very small STM32F405 board
Replies: 11
Views: 205

Re: very small STM32F405 board

The text on U4 chip is DE=A1D, which is also known as RT9193. In my applications, I use an external voltage regulator for all external sensors and actuators. The power of this local regulator has been enough in all my cases.
by Ollie
Thu Jul 27, 2017 6:51 pm
Forum: All other boards
Topic: very small STM32F405 board
Replies: 11
Views: 205

Re: very small STM32F405 board

This F407VE has become my new favorite board. I am calling it "blue pad" and it is kind of super "blue pill".
by Ollie
Sat Jul 22, 2017 4:15 pm
Forum: All other boards
Topic: very small STM32F405 board
Replies: 11
Views: 205

Re: very small STM32F405 board

Depending on your application, you can reduce your effort and leverage the work done by others by selecting a proper IDE and library. There are quite a many alternatives. 1. If you are doing any flying things, the BetaFlight can be modified for your needs. For most cases, only minor changes are requ...
by Ollie
Thu Jul 20, 2017 4:40 pm
Forum: General discussion
Topic: Introducing STM32F4 based dev board for robotics with Arduino compatible programming framework
Replies: 13
Views: 351

Re: Introducing STM32F4 based dev board for robotics with Arduino compatible programming framework

Donowak,

I know that you want to "discuss" about your hardware and software products with us. But if there are no interested discussion partners, you should make your own conclusions. This is my last post for this thread.
by Ollie
Mon Jul 17, 2017 3:09 pm
Forum: General discussion
Topic: Introducing STM32F4 based dev board for robotics with Arduino compatible programming framework
Replies: 13
Views: 351

Re: Introducing STM32F4 based dev board for robotics with Arduino compatible programming framework

Thanks Roger,

I hope that your actions will send a message to all forum users about what is acceptable and what is not.
by Ollie
Fri Jul 14, 2017 2:51 pm
Forum: General discussion
Topic: Introducing STM32F4 based dev board for robotics with Arduino compatible programming framework
Replies: 13
Views: 351

Re: Introducing STM32F4 based dev board for robotics with Arduino compatible programming framework

Interesting, but what this has to do with STM32duino?

Personally, I am annoyed by plain product promotions in this forum. If they add some relevant information that is OK, but if the purpose is to get free advertisement, that simply is wrong.
by Ollie
Sun Jul 09, 2017 4:12 pm
Forum: Welcome & FAQs
Topic: Welcome & 2 questions
Replies: 10
Views: 235

Re: Welcome & 2 questions

@Mac, I do share Pito's recommendation to go with F407 for these kinds of applications. There are very compact F407 models available that are not much larger that Teensy 3.x. The sad thing is that you cannot insert them into a breadboard. On other hand you have more pins available for peripherals. M...
by Ollie
Sat Jul 08, 2017 5:49 pm
Forum: Welcome & FAQs
Topic: Welcome & 2 questions
Replies: 10
Views: 235

Re: Welcome & 2 questions

The word "best" alone is very subjective. If you can describe your application or problem, then you would get more relevant recommendations for those use cases. For example, I am mainly involved in robotics and copters. I have been very pleased for the blue pill and F103 in general. In that frontier...
by Ollie
Fri Jul 07, 2017 3:02 pm
Forum: Code snipplets
Topic: SoftPWM via DMA and no CPU cycles
Replies: 20
Views: 317

Re: SoftPWM via DMA and no CPU cycles

This is very relevant technology. In practice, it is the only way to implement the Dshot600 and Dshot1200 digital communication with the Electronic Speed Controllers for the BLDC motors used in fast copters. The classic PWM is analog and quite slow - it used to be 20 ms, but it is still limited by t...
by Ollie
Mon Jul 03, 2017 2:03 pm
Forum: PR's bugs and enhancements
Topic: Added needed binaries for Raspberry Pi 3 ARMv7 into tools
Replies: 4
Views: 56

Re: Added needed binaries for Raspberry Pi 3 ARMv7 into tools

We as a community and Roger as a unique contributor, have a limited amount of resources available. We should use those wisely. The RPi route can take too much of those related to the benefits for the community. For me, RPi is the target and not the development platform.