Designing a 3D Printed Jig to Flash Firmware to ESP8266 based Light Bulbs

Karl here. I have to say that my favorite part of 3D printing is designing things from scratch. Recently a reader was asking about a way to flash a lot of Ai Lights on a project he was working on. I suggested 3D printing a jig that pressure fits pins. He didn’t have a printer, and we exchanged contact information and he sent me one of the lights and some pogo pins from Amazon. Design in Fusion 360 I started by taking a picture of the light to get my pin placement. I set a scale by measuring a known distance then printed and tested. It took about 3 iterations to get them to line up in real life. Keep in mind camera lenses distort reality and knew It would take a couple times. I would just let a few layers print then stop and line everything up. I had […]

Review of Sonoff RF Bridge, Sonoff 4ch Pro, and Sonoff POW with Sonoff-Tasmota Firmware

Karl here. Today we are going to look at 2 new and one older Sonoff devices. Sonoff RF Bridge – $9.90 433MHz RF to WiFi Bridge Sonoff 4ch Pro – 4 Gang WiFi RF Smart Switch Sonoff POW – Wireless switch with power metering capabilities I spent very little time with the stock firmware on the device. I don’t like the fact that an Internet connection is needed, and I am not in control. As of the time of this writing I found the Ewelink was not configurable enough to meet my needs. There is one feature that is really nice that I could easily see keeping stock firmware. It is the Alexa Skill. It worked. I am also currently reviewing Vobot Smart Alarm Clock with Alexa integration and had no trouble controlling the Sonoff devices with Alexa. But unfortunately I am lazy and want everything automatic so I can’t […]

Tevo Tarantula 3D Printer’s Large Dual Extruder Auto Bed Level Sensor Firmware Upgrade

What a title. Just a quick update on the Tevo I am reviewing. I didn’t want to upgrade the firmware, but I read so many posts on Facebook about it I took the plunge. I didn’t like was the firmware that came with it. It only did a 3 point level, and seemed to go outside the build plate dimensions. The first 2 printers I have reviewed were Marlin, so it was what I am most familiar with. I used Jim Brown’s Marlin fork as a base. It was missing dual extruder and auto level sensor in the pre-configured profiles. It took a while, but I was able to add the extra features. The auto bed level sensor connects to where the normal Z end stop sensor is connected. I would like to warn you to warm your bed for 5 minutes for the best reproducible results. I tested several […]

How to Use Octoprint on Orange Pi Lite Board, Amlogic S905X and S912 TV Boxes

Karl here. This was article originally going to be how to setup Octoprint 3D printer server on an Orange Pi Lite. But after looking and running through the instructions it seemed like it would be too much so I created an img to simplify things. I also explored running Octoprint on an Amlogic S905x or S912 device and it turned out to be an even better solution. You get a case, power supply, and eMMC flash storage. What is Octoprint? I use Octoprint mainly for its ability to start and stop prints without having to use an sd card. Time lapse is also a nice feature. And one last thing is that I setup a pushbullet notification when it is complete. For a full list of features check out http://octoprint.org/. What is needed? Orange Pi Lite board provided by GearBest for the article, or an Amlogic S905X or S912 Android […]

Sonoff B1 is an $18 Hackable WiFi RGB LED E27 Light Bulb based on ESP8285 WiSoC

Earlier this year, I wrote about an ESP8266 based RGB LED “AI Light” lightbulb that was hacked to run ESPurna open source firmware. That’s all good, except some people tried to get one, and ended with a different hardware. So if you’d like something that’s more of a “sure thing”, ITEAD Studio has designed Sonoff B1 dimmable RGB LED E27 light bulb based on ESP8285 processor, and with a “4 pads” to allow for custom firmware flashing. Sonoff B1 hardware specifications: Typical Lumen Output – 600lm Beam Angle – 120 degrees typ. Color Temperature –  2800K-6500K & RGB full color Connectivity – WiFi 802.11 b/g/n @ 2.4GHz Power Supply – 90-260V AC 50/60Hz via E27 base Power Consumption – Light off: 0.5W Max; rated power: 6W Temperature Range – Operating: 0ºC~ 40ºC; storage: -20ºC~ 80ºC Operating Humidity – 5%-90% RH Sonoff B1 with stock firmware can be controlled using the […]

H3Droid Android Firmware is Designed for Allwinner H3 Boards & Devices

Allwinner H3 boards such as Orange Pi PC and NanoPi NEO are mostly interesting due to their ability to run Linux and control I/Os, and while they also support Android, most people wanting to run Android are better served with TV boxes instead, as they come with enclosure, power supply, HDMI cable, and an IR remote control. That does not mean there’s no use case for Android on development boards, and that’s why probably KotCzarny, and other developers, have decided to work on H3Droid project to provide better Android images for Allwinner H3 boards and devices than the firmware released by manufacturers. Some of the improvements include “sane DRAM/CPU settings”, support for Custom recovery system, Google Play Store and more USB network adapters, as well as the removal of apps and feature unusable for people outside out China. You’ll also be able to access the board via SSH if you […]

Canonical Releases Ubuntu Core 16 for Raspberry Pi 3 Compute Module

Now that Canonical has refocused its development efforts on Cloud and IoT, Ubuntu Core has become even more important for the company, which has just released Ubuntu Core 16 for the Raspberry Pi 3 Compute Module, which is better suited for industrial projects than Raspberry Pi boards, for example thanks to the more resilient built-in storage of CM3 module. Ubuntu Core was already supported on Raspberry Pi 2 & 3, Intel Joule, DragonBoard 410c, Intel NUC, and Samsung Artik boards, as well as KVM to run Ubuntu Core in a virtual environment. One of the advantages of running Ubuntu Core is the availability of snaps and branded app stores, making it easy to provide updates, and promote app for the platform. Screenly is one commercial project that will take advantage of Ubuntu Core on CM3 module for their digital signage applications. You’ll find instructions to get started with Ubuntu Core […]

WeTek and Ugoos Release Android 6.0 Marshmallow Firmware for their Amlogic S905 TV Boxes

While there are many models of TV boxes on the market, there are only a few companies that will provide firmware updates over time for their products. Two of those companies are WeTek and Ugoos, both of which recently released Android 6.0 Marshmallow firmware for their Amlogic S905 TV boxes. I actually reported about WeTek working on Android 6.0 for Hub TV box last year, but at the time it was still a beta version. The company has now released weOS 3.1 firmware with Android 6.0 for both WeTek Hub and WeTek Play 2 with the following changelog: System Kernel Fixes Streaming apps in 4K Improved Auto refresh rate system for Kodi Improved DRM playback Apps Added Kodi 17.3, update Updted Aptoide Store, Google Apps and File Manager WeTV (Play 2 only) Added XMLTV for Sat PG Fixes for ATSC Now allows ATSC-T and ATSC-C Most people can get the […]

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