[Grbl_Esp32 Issue#7] Development Board

#1 – DirtyEngineer 于 2018-07-29

Referencing this post I think Bart has a couple of the prototype development board PCB’s available.

#2 – buildlog 于 2018-07-29

I have a few blanks I can sell for $10 which includes US Shipping.

I would like to sell them to people who will actively help with the project. You can determine on your own if you qualify for that.

#3 – nhrones 于 2018-07-30

I’ve been busy writing a javascript Gcode server(web-app), that is served
from an ESP8266.
This app is complete, and currently running on a Chromebook as a
Chrome-App, driving a Grbl cnc router via USB => UNO
Beside file-serving this app, the ESP8266 app will use WebSocket to
transfer gcode to /from a directly coupled
(software-serial) GRBL/UNO.

This will allow any Browser to host this app and serve Gcode to the machine
over wifi via Websocket.
Browser => socket => ESP => software-serial => UNO => shield

The completed chrome-app is currently 160k (modular and un-minified). It
has most of the capability of UGS including a canvas visualization of a
Gcode file,
This app fits nicely on the ESP8266 along with the
HTML-server/socket-server functionality, so it would be no problem for a
single ESP32-core.

I’m a retired C# / Java industrial automation developer with lots of time
on my hands.
I’m very impressed with the work you’ve done with the GRBL/ESP32 port.
My C skills are limited to Arduino-UNO and ESP in Arduino-IDE, but I have a
long history of successful software development experience.
I would love to work on an app-server/serial-comm core, for this project.
It would be great to eliminate the UNO from my current architecture.

I can envision the following architecture ….
ESP Web-Server (esp32-core1) => browser-Gcode-sender =>
ESP-socket-server (esp32-core1) => core-to-core via semaphor =>
GRBL(esp32-core0)
GRBL(esp32-core0) => core-to-core via semaphor => ESP-socket-server
(esp32-core1) => browser-Gcode-sender.

This is why I asked about the availability of a development board.
Unfortunately, at 70, my eyes are failing, and I would not be interested in
populating/troubleshooting a bare board.
II think ‘ll wait for a functional development board to hit the market, and
complete the 8266/UNO software in the mean-time.

Thanks, and keep up the good work.

On Sun, Jul 29, 2018 at 11:34 AM, Bart Dring
wrote:

> I have a few blanks I can sell for $10 which includes US Shipping.
>
> I would like to sell them to people who will actively help with the
> project. You can determine on your own if you qualify for that.
>
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> You are receiving this because you authored the thread.
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#4 – buildlog 于 2018-07-30

@nhrones That sounds like an interesting project. When I build another for myself, I’ll build a couple of them and let you know. There are only about 6 SMD parts and there are all capacitors or resistors.

You should be able to run a “virtual” machine by just running on the ESP32. Turn off homing and it should behave just fine.

#5 – buildlog 于 2018-08-02

Closing . see open issue on new PCB design