It works over IDE, when powered from USB, but not when powered via VUSB pin 5v?

[espruino-discuss]

Posted at 2020-08-07 by mattw

I've been able to get a bunch of stuff to work from the IDE => RAM, then I figured out how to get it going properly from USB (no computer/IDE) by removing onInit(); and using save() command. So yeah, that works when powered over USB cube.

However, when I apply 5V to the VUSB pin, it just flashes a blue light on and off... Not sure why it works in all circumstances but this?

Thoughts?

const wifi = require("Wifi");
const ws = require("ws");

const WIFI_NAME = "OceanusStudio";
const WIFI_OPTIONS = { password : "studio125" };

const connectToWifi = () => {
	wifi.connect(WIFI_NAME, WIFI_OPTIONS, (err)  => {
		if (err) {
		  //console.log("Connection error: " + err);
		  return;
		} else {
			//console.log("Wifi Connected!");

			var info = {
					ip: "192.168.0.159",
					gw: "192.168.0.1",
					netmask: "255.255.255.0"
			};

			wifi.setIP(info, (err) => {
					//console.log("IP set!");
					startServer();
			});
		}
	});
};

const getPage = () => {
	var today = new Date();
	var time = today.getHours() + ":" + today.getMinutes() + ":" + today.getSeconds();
	return 'allo guv :: ' + time;
};

const onHttpRequest = (request, response) => {
	//console.log("Processing request");
	response.writeHead(200, { 'Content-Type': 'text/html' });
	response.end(getPage());
};

const startServer = () => {
	//console.log("Starting Server");
	ws
		.createServer(onHttpRequest)
		.listen(80)
		.on("websocket", (socket) => {
			//console.log("websocket connection");
			socket.on("message", (msg) => {
				//console.log("websocket message: " + msg);
				socket.send("pong");
			});
		});

};

function onInit() {
	connectToWifi();
}

Thanks!
Matt

[espruino-discuss]

Posted at 2020-08-07 by mattw

I checked voltage w meter and it's around 4.5, which I believe should work, no?

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Posted at 2020-08-07 by mattw

Man this is embarrassing again, but 4.5V is not enough. I was able to get 5.2V or so and now it works.

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Posted at 2020-08-07 by mattw

It has to do with misplaced voltage regulator, but basically, blue light flashing is the behavior when u arent properly powered.

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Posted at 2020-08-17 by @gfwilliams

It has to do with misplaced voltage regulator

Misplaced regulator on the Espruino board? I imagine most likely what happens is as soon as the WiFi powers on it draws so much power it cases a reset

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Posted at 2020-08-17 by mattw

No its a bad regulator coming from the PS on my side. I used the autolocator all day in a session yesterday and it's running pretty well!

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Posted at 2020-08-17 by mattw

Interface is not right. But it's working pretty well.

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Attachments:

• joined_video_6693f4473707446a91db0299131bff15.MP4

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Posted at 2020-08-17 by @gfwilliams

That's great! Glad to see it working nicely :)