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stm32 is an arm family of mcus by st microelectronics
Hello, The input 1 and input 2 signals will be boarded from an STM32 but the problem is the signal transferred from STM32 is 3.3 V but the input to the IC is 5V. How do I convert the same? Please ...Read more
Hello,
The input 1 and input 2 signals will be boarded from an STM32 but the problem is the signal transferred from STM32 is 3.3 V but the input to the IC is 5V. How do I convert the same? Please help.
Thank You
Read lessHello, I am new to STM32 and trying to learn exciting stuff. I want to light a single LED from my WS2812B strip. For example, I’ll choose the 6th LED on my computer, and the 6th LED on the strip will light ...Read more
Hello,
I am new to STM32 and trying to learn exciting stuff. I want to light a single LED from my WS2812B strip.
For example, I’ll choose the 6th LED on my computer, and the 6th LED on the strip will light up.
But I am not sure where to start. How can I access to single LED address? And how to get it to work with STM32?
Thanks in advance.
Read less
Welcome, to the community! The question of WS2812 has already been discussed here many times. The thread How to use HAL DMA to generate PWM on P- NUCLEO- WB, for example, also deals with it and refers to a Github driver from Tilen Majerle and a HAL example from Martin Willner. Maybe that will help yRead more
Welcome, to the community!
The question of WS2812 has already been discussed here many times. The thread How to use HAL DMA to generate PWM on P- NUCLEO- WB, for example, also deals with it and refers to a Github driver from Tilen Majerle and a HAL example from Martin Willner.
Maybe that will help you?
Regards
Vikas
See lessI’ve 36 leds on my board. I’ll connect dimmer my board. How can i adjust leds brightness with dimmer? Because i need to manage 36 output pins. How can i do it?
I’ve 36 leds on my board. I’ll connect dimmer my board. How can i adjust leds brightness with dimmer? Because i need to manage 36 output pins. How can i do it?
Read lessYou can DMA to the io pins (using a indirect buffer, transferring to GPIO output register). I controlled 48 Leds (16 RGB Leds) this way using a STM32L4(100 LQFP package). But this was to give independent brightness situations to each individual Led. But if all Leds are dimmed together (synchronised)Read more
You can DMA to the io pins (using a indirect buffer, transferring to GPIO output register). I controlled 48 Leds (16 RGB Leds) this way using a STM32L4(100 LQFP package). But this was to give independent brightness situations to each individual Led.
But if all Leds are dimmed together (synchronised), also you probably only need a single FET to sink all the Leds current, and use that FET to control the brightness (PWM)
See less
Well, that good olde L293D. This is a no-brainer because even a 3.3 V supplied GPIO affair generates 5V TTL compatible signal situations. See the datasheet of your chip. Application note AN4899" STM32 microcontroller GPIO hardware settings." is worth reading.
Well, that good olde L293D.
This is a no-brainer because even a 3.3 V supplied GPIO affair generates 5V TTL compatible signal situations.
See the datasheet of your chip.
Application note AN4899” STM32 microcontroller GPIO hardware settings.” is worth reading.
See less