Viewing 8 posts - 1 through 8 (of 11 total)
  • Author
    Posts
  • #10072
    Just4Fun
    Participant

    These days I'm far from mine “lab” so I took the opportunity to bring forward another toy, this time based on a common ESP32-WROOM-32 module.
    In fact, I was curious to try the bookstores FabGl for ESP32 which allows, Moreover, to create a classic RS232 terminal (it can actually do a lot more…) with color graphics, mouse and sound management.
    To make everything easy to assemble, I only used TH components (with the exception of the ESP32 module of course) in order to also facilitate the possible creation of a kit.
    For the sounds I have provided a simple amplifier based on an inexpensive LM386 to be able to directly connect a common PC speaker.

    Here a first attempt at placing (without routing):

    • This topic was modified 9 months, 4 weeks ago by Just4Fun.
    • This topic was modified 9 months, 4 weeks ago by Just4Fun.
    • This topic was modified 9 months, 4 weeks ago by Just4Fun.
    #10076
    Picmicro675
    Moderator

    Admirable!
    But it would not be possible to read SD cards?
    I would say it could be very close to a Raspberry, therefore with an SO.

    #10548
    Just4Fun
    Participant

    Lately I have had time to take the uTerm2-S PCB and complete it. I shrunk the PCB a bit, the final board is now 90mm x 95mm:


    @Picmicro675
    : Yup, you could add a microSD but as this is basically a terminal I preferred to avoid in order not to complicate the card. Maybe in the future I will make another version with microSD and more in order to have a kind of PC, but in this case I will only use SMD components.

    Now all that remains is to wait for the manufacture…

    #10557
    Picmicro675
    Moderator

    Long live the back, but as you can understand nowadays everything in SMT. What then if we look at the age I would say that it has passed i 30 years even with the SMT. I don't venture much on that method, I already have difficulty with the step from 1/10 of inch. I tried a couple of experiments and missed the components that are smaller than bread crumbs 🙂

    #10577
    Just4Fun
    Participant

    I started the first tests of the board. Here is a test of the audio part:

    And this is the VGA video part with the terminal settings panel (FabGl bookcase):

    • This reply was modified 3 months, 1 week ago by Just4Fun.
    • This reply was modified 3 months, 1 week ago by Just4Fun.
    • This reply was modified 3 months, 1 week ago by Just4Fun.
    #10591
    Just4Fun
    Participant

    While I was testing the card, I couldn't help but install the famous Space Invaders game on it, also inside the FabGl library:

    I must say that together with the audio effects it recreates the atmosphere of the arcades of the period very well!

    In the meantime I realized that in fact it would be possible to add a microSD card and a PSRAM using the AUX connector just above the ESP32 module, so i tried to draw a small PCB from “mount above” and that I have not by chance called uHat (micro hat, or micro hat). We'll see…

    • This reply was modified 3 months ago by Just4Fun.
    • This reply was modified 3 months ago by Just4Fun.
    #10596
    Picmicro675
    Moderator

    uHat?
    Cappelletto? 😀 about tortellino?

    #10598
    Just4Fun
    Participant

    Definitely better tortellino… 🙂

Viewing 8 posts - 1 through 8 (of 11 total)
  • You must be logged in to reply to this topic.