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And while you are reading this, do join the LaserWeb/CNCWeb Community too! 
[please reshare] [strong focus on improving CNC CAM] People, the time has come for the developers in this community to get involved in LaserWeb/CNCWeb version 4 development. +Todd Fleming​​ of the famous, and +Sébastien Mischler​​, famous for SLAcer/Smoothiehappy and a host of other cool apps, worked hard the last few months to build a proper, modular, backend solution.

This time its built around ReactJS+Redux and ReGL (instead of ThreeJS) for a) easier modular development, and b) better performance. Also, with Todd on board, the CNC CAM side of CNCWeb is going to be dynamite! Webpack is used to build a distributable build with less dependencies.

The repo is over on

The dev environment, webpack build setup, reactjs+redux backend, basic template, some of the CNC CAM, etc has already been implemented

What we need from all of you is to get stuck in porting the rest of LW3 over into LW4

- Implement Smoothiehappy.js (extend it to support esp8266+websockets) as a Smoothieware comms layer ( +Sébastien Mischler​​ and +Toon Nelissen​​ comes to mind here)
- using Smoothiehappy.js as inspiration, we could look at making a grblhappy.js module too so we have the closest compatibility with Grbl1.1. This module would be independent if course so many other JS apps can use the backend ( +Claudio Prezzi​​ +Toon Nelissen​​ +Sonny Jeon​​ comes to mind)
- port the 3D viewer library ( +Håkan Båstedt​​ did the most work on the viewer so far, but it was originally +Andrew Hodel​​ who stripped down +John Lauer​​s viewer for grblweb, which I used) to the reactjs+redux backend and also to reGL (much faster than ThreeJS. If you need convincing, talk to +Mark Moissette​​ - he is the reGL champion)
- port in the Raster laser cam / switch to +Sébastien Mischler​​s new Rasterizer.js library - i am happy with either.
- a lot of other tasks (calling back some of the old helpers like +Daniel Edwards​​ +Nathaniel Stenzel​​ +Richard Betel​​ +quillford​​ +Dana Woodman​​ +Dat Chu​​ +Bertus Kruger​​ +Gustav von Roth​​ etc)

Also, we need to run a fundraiser to get a laser for +Todd Fleming​​ ( +Alex Krause​​ +Ray Kholodovsky​​ +Domenic Di Giorgio​​ +Bonne Wilce​​ +Roy Cortes​​ +Rob Giseburt​​ +Alden Hart​​ just throwing names out there)

Hey. Anyone worked with BME280 TPH sensors? I need to know the Temperature read operation ,piece of code that can be used to read temperature in deg.c, pressure in pascals.I am using SPI as an Interface. Any help is appreciated.

PS: I have gone thrrough the driver files and support codes. tried to read TPH values,but the values read are random. Dont know how to verify the same.

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Thanks to +Make: and Hackster, you can start harmonizing offline and online Maker initiatives, from Maker Faire to online communities and beyond.

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My nephew just made this video explaining how to make an audio pickup using a piezoelectric element and a simple preamp. He's just getting into the maker scene and I couldn't be more thrilled!

Hello ,do you know when the life for lights challenge winners will be announced? 


I want to try making my own paper pulp packaging for a project. It's how egg boxes are made - The Idea is to blend newspaper with hot water into pulp and put it into a mould. Now I don't have access to a vacuum press so I'm looking for any suggestions for moulding.



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Does anyone have a spare ZXMP6A13F 60 V P channel MOSFET SOT23 or equivalent? Both DigiKey and Mouser are back ordered and I need to make a repair to my radio before ARRL Field Day. Its for an Icom 821H. I have lost my transmit on 70cm. I am hoping someone has one in their parts drawer. If anyone knows of a supplier with them in stock that would be awesome too! Thanks in advance. 

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Dirt simple, idiot-proof continuity tester to free up an Arduino for better projects. 
So, I've got an #electronics problem that's been bothering me most of this week. I built a continuity tester for the QA department at work. The reason for making it bespoke like that is to eliminate operator error. In other words, I had to idiot-proof it.
The tester has two big lights on it, one green and one red.
When the tester is powered on, the red light goes on.
If a part is inserted into the stand and completes the circuit, the red light goes off and the green light goes on. The schematic I linked is more or less how the tester works in principle. One LED is illuminated until it gets a signal from one of the analog pins (continuity), at which point it switches to the other LED.

The problem is that right now it's using an #Arduino to drive a pair of transistors to switch between two 12V high-powered LEDs. I say problem because I think using an Arduino for this is total overkill, even for idiot-proofing.

What I want to make is a continuity tester that runs two LEDs, red when on and green when continuity is detected, using the absolute bare minimum of components. I don't want anything more sophisticated than a #555 timer chip on this setup; just caps, resistors, transistors, and maybe a relay or two. There's plenty of #DIY continuity tester diagrams out there, but they all work on the ON/OFF principle when I need something more like A/B if that makes sense. 

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I need help! I have a html page. I want to put a button on there that sends this:

I just don't want it to accually go to that page but only 'post' the data and stay on the same page.

I read something about doing it with ajax but i am unknown with ajax aswell as javascript and php.

Can anyone make me an example?
(I need 6 of those buttons on one page)
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