Search found 1803 matches

by mrburnette
Wed Oct 04, 2017 2:13 pm
Forum: New users MUST post here first, and let us know a bit about you and your projects
Topic: Hi from a prospective stm32 owner
Replies: 10
Views: 211

Re: Hi from a prospective stm32 owner

Aliexpress.com is littered with these under $2 boards. My last purchase was one of the 10 quantities. https://www.aliexpress.com/wholesale?catId=0&initiative_id=&SearchText=STM32F103C8T6%2C+STM32+ARM I strongly recommend purchasing one of the known to work versions: blue, black, red ... adding yet a...
by mrburnette
Wed Oct 04, 2017 1:57 pm
Forum: STM32F103 Boards
Topic: OLED SH1106 on STM32F103?
Replies: 1
Views: 133

Re: OLED SH1106 on STM32F103?

You may find this post useful:

https://github.com/rm-hull/luma.oled/issues/1
by mrburnette
Wed Oct 04, 2017 1:44 pm
Forum: Code snipplets
Topic: A faster ringbuffer implementation
Replies: 12
Views: 1648

Re: A faster ringbuffer implementation

... Note: as this stuff is template based, you could change the element buffer from an array of uint8_t data to something completely different. It could be an ring buffer of custom structure, a ring buffer of int16_t, or even a ring buffer of function pointers. ... Rick, Wow ... seriously cool. We ...
by mrburnette
Sun Oct 01, 2017 2:44 pm
Forum: New users MUST post here first, and let us know a bit about you and your projects
Topic: Powering Blue Pill and battery use
Replies: 7
Views: 195

Re: Powering Blue Pill and battery use

Now I want to power the whole from the external 3.3 volt wall supply (and eventually a Li-Po) while still being able to use the USB to debug. I don't think I can just connect my supply to the 3.3 on the pill with the USB in place. [/b] My recommendation is to use a quality 5V USB wall power unit an...
by mrburnette
Sun Oct 01, 2017 2:26 pm
Forum: General discussion
Topic: The fastest ADC (analogRead) - how ?
Replies: 10
Views: 386

Re: The fastest ADC (analogRead) - how ?

just starting to learn ADC , and I find it difficult to understand. Could you fix my code for maximum performance ? I would be very grateful Surely you jest? Forums are to assist you toward creating your own solution and thereby help you to understand and develop confidence. Were you handed working...
by mrburnette
Sat Sep 30, 2017 7:57 pm
Forum: General discussion
Topic: BluePill on Hackaday again
Replies: 14
Views: 632

Re: BluePill on Hackaday again

STM32DUINO is not an Arduino killer. It is simply a re-worked and improved core derived from the LeafLab original core code for the STM32F103 Maple branded boards. Arduino.cc is constantly evolving hardware and the IDE is actively being enhanced. Refer to: https://store.arduino.cc/usa/ which shows n...
by mrburnette
Thu Sep 21, 2017 12:14 pm
Forum: STM core: Bugs and enhancements
Topic: Suggest having BluePill pins defined for all Arduino pins
Replies: 5
Views: 131

Re: Suggest having BluePill pins defined for all Arduino pins

<...> Note, there is a Nucleo pin assigned/defined for each and every standard Arduino pin (see the attached spreadsheet).<...> ... nice spreadsheet, however. I have a tendency to use about anything that I can buy cheap, so I have a container of Blue Pills along with about 3x as many faux Maple Min...
by mrburnette
Sun Sep 17, 2017 10:02 pm
Forum: Ideas & suggestions
Topic: Differential ADC (ADC1-ADC2)
Replies: 15
Views: 494

Re: Differential ADC (ADC1-ADC2)

Recall that the official Maple mini had separate analog and digital ground planes.
Baite (&others) went cloning with a dual-sided board ... hence the increased analog noise.

Ray