Dump Controller State(DRO) and dump it into a file.

[pkr97]

We need a dump of controller state (workCoord machineCoord) with their respective timestamps. Could the community suggest a right way to tweak the existing code or if this functionality already exists in the current build (I couldn't find it in the GUI).

I have installed Jdk-8.
I could compile Universal-G-Code-Sender-2.0.9.
I'm using apache-maven-3.8.6-bin & OpenJDK13U-jdk_x64_windows_hotspot_13.0.1_9 for compiling

Thanks for any help.

[breiler]

I think that the easiest way to do this is to query the pendant HTTP API.

Here is a search where you'll find information on how to get started:
https://github.com/winder/Universal-G-Code-Sender/search?q=pendant+api&type=discussions

[pkr97]

Hi Breiler,
Thanks and I could use pendent mode of communication.

Below is a code snippet I used to access the webpage and scraper to read Y-coordinate of the machine.

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const puppeteer = require('puppeteer');

async function start() {
const url = 'http://10.21.178.134:8080/';
const browser = await puppeteer.launch({
headless: false
});
const page = await browser.newPage();
await page.goto(url);

const dateObject = new Date();
var yCord = 0.0

var element = await page.waitForXPath("/html/body/app-root/div/div/div[1]/app-dro/div/div[2]/div[3]/div[2]")
var yCord = await page.evaluate(element => element.textContent, element);
console.log(yCord);

while (1){
	var element = await page.waitForXPath("/html/body/app-root/div/div/div[1]/app-dro/div/div[2]/div[3]/div[2]")
	yCord = parseFloat(await page.evaluate(element => element.textContent, element));

	const timestamp = Date.now();
	console.log(timestamp, yCord);

	await page.waitForTimeout(1);
}
browser.close();

}
start()
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However,
I see that the update rate of the pendant HTTP API is very slow and much less than 100Hz.

How do I move forward so I can record machine coordinates at a rate of 500Hz or 200Hz, if not 1000Hz?

Thanks for any help.

[breiler]

I think that it would be better by just query the API instead of scraping the web page: curl -v -X GET http://localhost:8080/api/v1/status/getStatus

The frequency for status updates is limited by the controller. UGS is polling the status by default every 200ms, there is a setting for making it more frequent. However, GRBL recommends a max status update frequency of 5-10Hz:
https://github.com/gnea/grbl/wiki/Grbl-v1.1-Interface#status-reporting

[chrisla23]

Eg: curl -H "Content-Type: application/json" -X POST -d "{\"commands\":\"G20G90G53G0Z0;G53G0X0Y0\"}" http://192.168.7.85:8080/api/v1/machine/sendGcode Also a handy one-liner: FOR /F "delims=" %%A IN ('xidel.exe http://192.168.7.196:8080/api/v1/status/getStatus -e "rowCount:=($json).rowCount" -e "completedRowCount:=($json).completedRowCount" -e "remainingRowCount:=($json).remainingRowCount" -e "sendDuration:=($json).sendDuration" -e "sendRemainingDuration:=($json).sendRemainingDuration" -e "workCoordX:=round(($json).workCoord.x,2)" -e "workCoordY:=round(($json).workCoord.y,2)" -e "workCoordZ:=round(($json).workCoord.z,2)" -e "state:=($json).state" -e "fileName:=($json).fileName" --output-format=cmd') DO %%A

…

-Chris

On Sat, Nov 12, 2022 at 2:48 AM Joacim Breiler ***@***.***> wrote: I think that you would be better of by just query the API instead of scraping the web page: curl -v -X GET http://localhost:8080/api/v1/status/getStatus The frequency for status updates is limited by the controller. UGS is polling the status by default every 200ms, there is a setting for making it more frequent. However, GRBL recommends a max status update frequency of 5-10Hz: https://github.com/gnea/grbl/wiki/Grbl-v1.1-Interface#status-reporting — Reply to this email directly, view it on GitHub <#2040 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AKYAC2SRVIDPFNU42QUMWRDWH5YWNANCNFSM6AAAAAARY3PZSY> . You are receiving this because you are subscribed to this thread.Message ID: <winder/Universal-G-Code-Sender/repo-discussions/2040/comments/4122981 @github.com>