Search found 2 matches

by befiglonia
Tue Aug 08, 2017 12:08 pm
Forum: Libary request
Topic: Nextion LCD with Maple Mini Clone (STM32F103CBT6)
Replies: 0
Views: 179

Nextion LCD with Maple Mini Clone (STM32F103CBT6)

Hi, I'm on OSX, working on platformio with Roger's STM32duino core. I have e Nextion LCD (5V) that works great on a Blue Pill board on its 5V-tolerant RX/TX pins (with common ground). I want to adapt it to my Maple Mini Clone, but fail to get it running properly. I tried all USART interfaces, and al...
by befiglonia
Mon Aug 07, 2017 10:31 am
Forum: STM32F103 Boards
Topic: Bluepill Generic F103C8T6 LED reversed?
Replies: 2
Views: 183

Bluepill Generic F103C8T6 LED reversed?

Hi, i observed that if i run a simple Blink on my Bluepill with STM32duino framework i get a reversed behaviors on the LED. What i mean is, if i put digitalWrite(PC13, LOW); the LED lights up and vice versa. I checked with a multimeter and indeed, the LED lights up when PC13 is LOW. Is this normal b...