I'm now trying to use library NeoPixelBus (https://github.com/Makuna/NeoPixelBus) with Teensy 4.1 and complains about some variables like VARIANT_MCK
It runs well on Teensy 3.2 but I would love to use it with T41 because of the ethernet board...
Only one warning about this chip: datasheet show the pins in relation to the dot (circle) on the chip, but in reality they are in relation to the notch. the dot is on the opposite (and wrong) side.
Is the level shifter unidirectional or bidirectional?
Many people have reported problems with the bidirectional types. The ones with a small mosfet and 2 resistors are too slow and distort the waveform, because the rise time is much worse than...
Thank you for the info.
I'm using three different ones but I suppose they are all the same.
one of them I know to be bi-directional, the other one is the BSS138 J1
Knowing that the bi-directional can be the issue I'll now try this 74AHCT125...
What level shifter are you using? Can you post schematics or something that gives us some indication as to how things are hooked up?
I am assuming that the level shifter isn't in effect an open drain output with a pullup, if that is the case then...
Nice, thanks for all the tips.
yes board has the capacitor specified in datasheet
This LED protocol is identical to ws2812, but it only changes the packet size (64 bits, 16 bits each channel RGBW)
I've bought one oscilloscope to inspect this and...
Dimitre,
Disclaimer... I am very new to microcontrollers, software, hardware, ect... I have very little experience and no right to give advice... So basically talking out of the side of my mouth...
In one data sheet for your UCS8904B chip I...
I'm working on a project that uses an addressable LED chip (UCS8904B) to drive mosfets with non addressable LEDs.
After everything assembled I've discovered some heavy interference when using Teensy and a level shifter to make the data signal...