feature request，about wifi，power-off memory，usb devices.

[XYartlab]

1.Is it possible to add support for WiFi to the existing network plugin？such as，use esp8266/esp32/esp32c3/esp32c5，connect to the CNC board through SPI, and then control it through IP (web/sender).
2.Use a large capacitor and an IO to detect the IO voltage, and if the voltage drops, use the capacitor to store the data.
3.Use USB OTG to support the connection of keypad, joystick, USB flash disk, and other devices.
4.Unified Extension Protocol. Use a consistent protocol for handwheels, control screens, IO extensions, panels, etc. (I think custom protocols may be better, but they are difficult and incompatible), and connect devices in series or from devices to the main device uniformly.

[terjeio]

1. Yes, as long as a port layer for lwIP can be added. Some WizNet modules are supported (SPI), and ESP AT (UART). The RP2040 driver for Pico boards also uses SPI to communicate with the off-chip WiFi module.
2. I do not understand this.
3. Driver code has to be added and possibly a common API.
4. This can be added via plugin code adhering to published API(s).

[Bharathk-Gowda]

Dear @terjeio @dresco
I was running 2 hour engraving program in grbl HAL controller (teensy 4.1), after 1.5 hour power failed, when power come back i was not able to run the program from line at which program was stopped.

Is there any solution for starting the program from where it stopped during Power failure ?

Thanks & Regards
Bharath

[terjeio]

It depends on the sender, some allows starting from a given line.
E.g. ioSender has a popup menu in the program listing that allows it. Currently you have to manually place the controller in the correct state first.

[Bharathk-Gowda]

i am running program from SD card, how to manually place the controller in the correct state.

[terjeio]

Placing the controller in the correct state may not be that difficult, just send the neccesary commands to do so. Starting from a certain block (line) when streaming from the SD card is not possible, either code has to be added for that or you have to edit the file to strip out executed commands.