MicroPython Forum (Archive)

Okay, so time for a few new questions! The frequency is set back on 5 and I've adjusted the PSC down to 1 and there's absolutely no flicker, it's completely a ribbon. My question is, what are the drawbacks of this? Should I be expecting significantly increased power usage, or is the change unnoticea...

Correct me if I'm wrong (as I know next to nothing about hardware programming, LED programming, and PWM) but PWM stands for Pulse Width Modulation, and so I'm assuming it's dimming the LED by sending gradually slower and slower pulses of electricity into the pin. If this is the case, wouldn't that b...

I assume you mean the line pyb.Timer(pwm_timer_no).init(freq=5) in the pwm module? At 100, it doesn't work, the highest value that appears to work is 80, anything above and the LED doesn't turn on. I also don't notice any changes once I up the frequency. The lights are still flickering at the same r...

Maybe I haven't fixed it. I'm curious now if this is a problem due to using the OUT_PP function, or if it's a problem with the LED/PWM setup. My problem is, when a color channel is set at anything less than 255, it's not a solid light, it actually has a flicker to it. When it's sitting still, it's u...

Fixed it!

Seemed like I needed to still put the pyb.Pin.OUT_PP as the second argument to PWM. Awesome!

Thanks a lot! So I added the pwm module to my controller, and the contents are (I'm assuming this is the latest version) import pyb, stm #as pwm is configured 0-3.3v is 0-10000 # used to truncate to 0-255; # change if you need finer resolution RESOLUTION = 255 #for each pin name # list of possible p...

So I'm new to microcontroller development as a whole, but after seeing this nice introductory board on kickstarter I decided to give it a try since I love python so much. I'm trying to create a LED light show display using this board. I've gotten my hands on a few nice RGB LED lights, and I was able...