Hey Karl here. Today we are going to look at something a little different. I am writing about my experiences with building Genmitsu 3018 CNC router upgraded version provided by Sainsmart for this review. While waiting on the unit to arrive I did some research and found that there are several different versions on the market labeled CNC xxxx. The xxxx represent the build volume in the x and y. So the one I was sent has a 300x180mm build volume. The 3018 is called upgraded because the new mounting for the X and Y rods and lead screws. On the previous version these had to be mounted and manually aligned which from what I read can be a pain. Building Genmitsu CNC 3018-PRO CNC Router The build went very well. The 3018 user manual was mostly pictures but they called out anything that might be questionable. I had been […]
I’ve been playing with products or boards with AC relays for a while, but I never really cared to check about different types of relay. So far, all platforms I tested came with largish blue or black boxes which are SPDT electro-mechanical relays. But as I browsed through Seeed Studio, I found some weirdly-shaped relay modules, much thinner than usual, and fairly more expensive. The main difference is that those are solid state relays, and the boards also include a grove connector that allows microcontrollers or other boards to control the relay over a simple I2C connection. The modules are available in 1-channel, 2-channel, 4-channel, and 8-channel versions with the following specifications: MCU – STMicro STM32F030F4P6 Arm Cortex-M0 micro-controller Relay – Omron G3MC202P module Input Voltage – 4~6V (Rated Input Voltage: 5V) Load Voltage Range – 75 to 264 VAC 50/60 Hz Rated Load Voltage – 100 to 240 VAC 50/60 […]
If you want an Arm Linux laptop, you have already some choices with products such as Pine64 Pinebook, or Olimex TERES-I open source hardware laptop, but if instead you’d rather do without keyboard, and get an Arm Linux tablet, choices are much more limited, if any at all. Back in 2012, Allwinner A10 based PengPod 700 & 1000 tablets were available for the company has since folded, and this year, RasPad case launched to allow you to build your own thick tablet with a Raspberry Pi 3 (B+). However, if you want to normal looking tablet, your best option right now is to get an Android tablet and mess around to install Linux on it. That’s not for everyone, and the good news is that what looks like a proper – albeit low-end – Arm Linux tablet is coming to market soon with TableX. TableX preliminary hardware specifications: SoC – […]
With new products released every day, it’s easy to be overwhelmed by the choice, so I’ll provide purchase links to products that I’ve either tested, or are recommended by the community for TV boxes, mini PCs, 3D printers, Linux development boards, MCU / IoT boards, and home automation products. To keep it simple, I’ll select up to 3 products in each category. TV Boxes I’ve already details some of the best TV boxes, and a list of criteria that are important when selecting a TV box in my post entitled What’s the Best Android TV Box (2017/2018 Edition)?, so I’ll provide purchase links to some of the best options. NVIDIA SHIELD Android TV for best Android TV and gaming experience around $200 on Amazon. MINIX NEO U9-H for a solid Android experience for 4K videos and audio-passthrough (not Android TV), around $150 on Amazon, GeekBuying, or GearBest.(MINIX NEO A3 air […]
2017 is coming to an end, and as I do every year, I’ll take a look back at the year that was on CNX Software. The pace of development boards launches has not slowed down this year, and we get an even wider range from the low-end with Orange Pi or NanoPi boards, to much more powerful ARM boards, and some new entrants like Libre Computer. The same is true for TV boxes, most of which now support 4K HDR, ranging from ultra cheap models selling for less than $20 to higher end Android TV boxes, while mini PCs were dominated by Intel Apollo Lake models, although some Cherry Trail products were also launched. Processor-wise, Amlogic launched more Amlogic S905X derivatives with S905W/S905D/S905Z, which are popular in the TV box market. Rockchip’s most interesting processor this year was RK3328 quad core Cortex A53 processor designed for 4K HDR Android TV […]
Back in May 2017, Google released the Assistant SDK that worked on Raspberry Pi 3, and other ARM boards, essentially transforming low cost development boards into Google Home equivalent. The SDK became more popular once Google’s AIY Voice Kit was launched since it offered an easy and inexpensive way to use it with Raspberry Pi 3 board. Since all you need was a Linux board with an Internet connection, a microphone, and speaker, I tried Google Assistant SDK on one of the cheapest platform available: Orange Pi Zero Set 6 Kit including Orange Pi Zero board, but also an expansion board with built-in microphone and audio output jack, and a cute little case. I added my own pair of speakers, micro SD card, and USB power supply, and after setting up the software, I was able ask question, and get answers with female voice using the demo app. At the […]
Black Friday and Cyber Monday 2017 deals have started to show up on some Chinese e-retailers website, so as every year, I’ll go through a non-exhaustive list with the most popular websites. GearBest’s 2017 Black Friday event offers discount from 8% up to 15% for mobile phone, tablets & computers, and appliances. One example if Alfawise S95 TV Box with S905W/2GB RAM/16GB flash going for $29.99 shipped. They also offer coupons up to 20% or a just amount in dollars. You can purchase lucky bags with a surprise product, some flash sales will be organized, as well as a lucky draw to win Xiaomi Mi 6 smartphone. Aliexpress is ready for both Black Friday and Cyber Monday with some games to win coupons, and deals per category. I have not found any specific yet, but while the games are on, the actual Black Friday sale will only take place between […]
Smart health gadgets will soon have a bigger part to play in our lives, especially for health monitoring. It mainly started with fitness trackers, but now we are starting to see connected devices such as blood pressure monitors, including the upcoming watch like Omron HeartVue, thermometer, scales, vital sign monitoring systems, certified medical SBC‘s to allow engineers to developer their own medical applications, and even open source surgical robots. HeartPatch is one of those medical board that specifically aims at measuring ECG data, and sent it over Bluetooth or WiFi thanks to Espressif ESP32 WiSoC. HeartPatch specifications: SoC – Espressif Systems ESP32 dual core Tensilica LX6 processor with Wi-Fi/Bluetooth ECG Chip – Maxim MAX30003 analog front-end USB – 1x micro USB connector for programming, data, power, and battery charging Debugging – USB-UART bridge based on CP2104 Misc – Onboard Snap-on Buttons for disposable electrode pads, RGB LED, Battery – 450 […]
