MicroPython Forum

Sounds like you have put a considerable amount of time and effort into developing this project. I notice you have also created great dos as well. If you were to guess the total hours to get your design to this standard how many hours do you think you have spent?? Thats hard to say. I wrote the firs...

Did you design all the hardware yourself?? Yes, but the idea is based on the Low-Cost, Arduino-Compatible Drawing Robot by MakersBox. After doing a class with MakersBox's design, that was scheduled for 2 hours but ended up running for 6, I wanted something easier and quicker to build for beginners....

OutoftheBOTS_ wrote: ↑

Mon Jun 01, 2020 10:08 pm

That's quite impressive, not an easy thing to achieve that accuracy.

I like how you stamp it rather than try to drag the pen, is this how you get better accuracy??

Since the bot turns pretty slowly, I lift the pen during rotations to avoid leaving a blob of ink.
Russ

just really impressed by how well you documented this project. Also you seem to have gone the extra mile with the ui/font and preloaded fat image to download. Thank you. I was hoping the preloaded fat image would help beginners get started. I used an arduino version of the bot for classes I gave at...

Here is my first MicroPython project, a MicroPython based 3D printed drawing robot powered by a TTGO T-Display ESP32 Module.



Here are a few links with more information, GitHub repo, Shaky cam video of it in action, and Documentation

The Hershey fonts are vector fonts so they are much slower to draw using the pure python driver. Bitmapped fonts are much quicker in python and even faster with the C driver. The https://github.com/russhughes/st7789_mpy repo has a firmware.bin I compiled using the MicroPython 1.12 source including t...

mondalex wrote: ↑

Tue Jan 16, 2018 6:47 pm

I want the microPython REPL prompt to show on the 128x64 glcd. How can I do that?

Check out: https://github.com/boochow/FBConsole

You can create a file system image with files and flash that to the device. https://penfold.owt.com/turtleplotbot/s ... vfat-image

I think I mostly understand your reply, and have downloaded your turtlebot-8m binary. Because I already have MicroPython on my board, I don't have to erase my flash first, right? I've reflashed my MicroPython versions this way before. From your instructions on penfold I'm also starting to get an id...

As far as I know, it's set in the micropython/ports/esp32/partitions.csv file. You can change the last value of the vfs line to 0x600000. Recompile MicroPython then erase and re-flash your device. # Name, Type, SubType, Offset, Size, Flags # Note: if you change the phy_init or app partition offset, ...