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Harvey71 / emdr

Firmware and controller app for DIY EMDR equipment (lightbar, buzzers and headphones)
MIT License
26 stars 9 forks source link

Tinsy lc #5

Closed MrLately closed 1 year ago

MrLately commented 1 year ago

Hello Harvey, thank you for this great tool. I'm having trouble finding timsy lc. What are some compatible devices if some of these aren't available?

Harvey71 commented 1 year ago

Hi Mr Lately, I just took a look and I am shocked by the prices you have to pay for a Teensy LC nowadays - if you can get one at all. Sadly, I don't think that there is a drop-in replacement, but actually you can use any microcontroller with an active USB port. If I would do this project now, I would choose a RP2040 based µC, like the Raspberry Pico. I chose the Teensy LC, because it has a 5V driver on board. But it seems that actual WS2812B (with the B) LED stips work fine with 3.3V output of a Pico - but no guarantees. Please refer to this link: https://www.freva.com/how-to-control-a-neopixel-led-strip-with-a-raspberry-pi-pico/ I am pretty sure, you have to adjust the source code for the lightbar firmware. I am sorry, but I currently don't have the time (and equipment) to do that, so that would be up to you. Maybe I will find the time later this year. I will order a LED strip right away.

MrLately commented 1 year ago

I just bought the ws2812b / 60 led / 1 meter strip. I've written a tkinter script with a canvas already then I found your project. Was thinking about using a pico or just run it from a 3b with the rpi_281x library to minimize hardware. I will put what I have on my GitHub later if you want to take a look in your free time. Thank you for your response and time. I have added you as a collaborator on my two projects so you're able to see them. I don't want to make them public yet as they are not safe to use in this stage.

MrLately commented 1 year ago

using pi zero 2 w and ws2812b 60/meter strip. working without external power supply atm. will include one later.

https://github.com/MrLately/blink-and-slide/tree/main this one works with arguments blink or slide in terminal.

https://github.com/MrLately/bas_gui this one im attempting to use a gui to control it but i cant get tk gui over vnc for some reason so im waiting on a 3.5 tft to arrive.