Search found 1198 matches

by madias
Thu Dec 06, 2018 4:55 pm
Forum: IDE's
Topic: UECIDE with Roger's core and latest gcc 7
Replies: 54
Views: 1826

Re: UECIDE with Roger's core and latest gcc 7

Wuuuhaaa! :) I talked to Matt years ago about porting the STM32duino core (I don't remember why it stucked). I think many people didn't even know about "UECIDE" except all guys played with PIC32 and chipkit. All I can say is: Give UECIDE a try , it's an amazing IDE with much improvements and stunnin...
by madias
Wed Dec 05, 2018 7:28 pm
Forum: STM32F103 Boards
Topic: Using I2S on bluepill
Replies: 3
Views: 384

Re: Using I2S on bluepill

I2S can be emulated quiet well on a blue pill, IF no master clock is needed. A good search term for this forum: pt8211 (these are those crap cheap good sounding DAC's we played a lot in the past with outstanding code results ;) ) and...yeah! - > found it, happy reading, but it should be no problem t...
by madias
Tue Nov 13, 2018 6:24 pm
Forum: Postbag
Topic: madias postbag
Replies: 56
Views: 3879

Re: Do not buy this bluetooth audio module

Just off the top of my head, probably the "power-budget" requirements. As I recall, the steady-state load is just under 160mA and can easily hit 750mA if the WiFi is active. I'm too lazy at the moment to dig into the reference manual to determine if the power domains have the granularity to turn of...
by madias
Sat Nov 10, 2018 6:43 am
Forum: Postbag
Topic: madias postbag
Replies: 56
Views: 3879

Re: madias postbag

Roger: Just look 4 posts above: The Wemos 18650 Battery Charge Shield Board works great for such projects - even with 5V output with only one single cell! Only drawback: The charging current is set to 500mA, so for speeding up charging the R2 should be replaced with 1,2k (1A charging). Also it's not...
by madias
Fri Nov 09, 2018 11:26 pm
Forum: Postbag
Topic: madias postbag
Replies: 56
Views: 3879

Do not buy this bluetooth audio module

For short: Please don't waste your time getting this BT audio module to work without significant noise: https://www.aliexpress.com/item/5V-Mono-Stereo-Output-Bluetooth-Audio-Module-Universal-Bluetooth-Module-Receiver-Module-7-PIN-Output-Interface/32836782109.html I tried nearly everything to get rid...
by madias
Fri Nov 09, 2018 11:19 pm
Forum: Libraries & Hardware
Topic: Is there any DMA based OLED library?
Replies: 7
Views: 694

Re: Is there any DMA based OLED library?

as David said, there wouldn't be any benefit using DMA for the SSD1306. DMA isn't a for speed as a major priority and with a whole screen buffer of 1k it wouldn't be a really discharge for the MCU. The SSD1306 is limited by it's chip. A much better approach would be not to update the whole display a...
by madias
Fri Nov 09, 2018 11:08 pm
Forum: IDE's
Topic: My deep concern..
Replies: 7
Views: 1021

Re: My deep concern..

...maybe an idea would be a separate section like "Alternative IDE's - NOT moderated and NO support by admins" or something.
by madias
Fri Nov 09, 2018 8:13 am
Forum: Off topic
Topic: Fighting with PAM8403 (Class D Amp) and VS1053 and/or BT-Audio Module
Replies: 2
Views: 388

Re: Fighting with PAM8403 (Class D Amp) and VS1053 and/or BT-Audio Module

I think it's caused by the idiotic layout design of all those cheap china audio modules. None of them obey the basic rules of creating audio circuits. Even a PAM8403 (better PAM8406) isn't a bad chip, but the circuits you can get as "modules" are totally bad, example: They use standard Elkos in the ...
by madias
Thu Nov 08, 2018 9:49 pm
Forum: Off topic
Topic: Fighting with PAM8403 (Class D Amp) and VS1053 and/or BT-Audio Module
Replies: 2
Views: 388

Fighting with PAM8403 (Class D Amp) and VS1053 and/or BT-Audio Module

I set this to off topic, because it's not really STM32duino related (of course, I use it for my project). Everybody looking around at Ali or Ebay should know this cheap modules: PAM8403 3*2W mini amp for 0.30 USD (some with potis, some not...) Bluetooth Audio modules for 1 USD and my beloved VS1053 ...
by madias
Thu Nov 08, 2018 9:30 pm
Forum: General discussion
Topic: Option to enable USB Serial write without needing DTR set
Replies: 8
Views: 574

Re: Option to enable USB Serial write without needing DTR set

+1
I see no restrictions to my projects, but advantages!