Texas Instruments TIVA Arm Cortex-M4 MCU family was first introduced in 2013, I tested a TIVA Launchpad the following years, and since microcontrollers have usually a long life span they are still in use today, and should still be available for many years. I’m writing about this TI MCU family today because MikroElektronika has just announced Fusion for TIVA V8 development board for TI TIVA, Stellaris and MSP432 microcontrollers with plenty of I/Os including some MikroBus expansion slots, as well as support for debugging and programming over WiFi in addition to the usual USB-UART interface. Fusion for TIVA v8 board specifications: MCU – Socket for MikroElektronika MCU CARD Display Interfaces 2x 20-pin TFT display connector 1x 16-pin LCD connector for 2×16 characters LCD displays in 4-bit mode, optional PWM backlight driving feature Programming – On-board CODEGRIP programmer/debugger, JTAG connector for connecting an external programmer/debugger Connectivity – Ethernet port, WiFI in […]
Customize Amazfit Bip Smartwatch – Thai Language and Mickey Mouse
I’ve been wearing WeLoop Hey 3S smartwatch for well over a year now, and I’m still very satisfied with it, but a small problem is that it does not support the Thai language, so when I receive messages it’s just blank, or only shows the ASCII characters part of the string. There’s also no real community for this watch, so customization options are limited, and readers recommended Amazfit Bip instead. I’ve writing about this, because one person I know looked for a smartwatch, and first wanted to get an Apple Smartwatch, but where I live it’s over one month of the minimum salary and around two to three weeks of a typical office salary. So instead I recommended the much cheaper Amazfit Bip after I was told the requirements were support for Thai language notifications, and custom watch faces in order to install a Mickey Mouse watch face, and both […]
Giggle Score Says ODROID-N2 Best Value, Raspberry Pi Zero Worst Value
[Update May 7, 2019: Giggle Score has been updated to use 7-zip to benchmark the boards instead of sysbench, and the “best value” rankings are now quite different] People like to compare single board computers, and usually want to have a simple answer as to which is better than the others. But in practice it’s impossible, because the beauty of SBCs is that they are so versatile and can be used in a wide variety of project, and that means in some cases the “best board” may be completely useless to you since it lacks a critical feature and interface for YOUR project be it H.265 video encoding or a MIPI DSI display interface. Still, it’s still always fun to look at benchmark scores and trying to compare SBCs, and for projects that mostly require CPU processing power it may also be useful. Robbie Ferguson has been developing and maintaining […]
Getting Started with balenaFin Developer Kit, balenaOS and balenaCloud
balena Fin is a carrier board for Raspberry Pi Compute Module 3/3+ designed specifically for industrial applications leveraging fleet management services provided by Balena. I received balenaFin developer kit last month, and in the first part of the reviewed shows how to assemble the kit. I’m now had time to spend more time with the kit, as well as BalenaOS Linux based operating system optimized for running Docker containers on embedded devices, and balenaCloud services to manage a fleet of devices from a web dashboard. I’ve mostly followed the instructions in the getting started guides here and there, and will document what I had to do to prepare the image, flash it to the board, and load a sample docker application locally, and through balenaCloud. Downloading and Configuring BalenaOS for balena Fin You’ll find BalenaOS in the download page. While we are using hardware based on a Raspberry Pi Compute […]
SainSmart DS213 Review – A Portable Mini Digital Storage Oscilloscope
Hey Karl here with another oscilloscope review. We are going to look at the DSO213 (aka DS213 mini DSO). It is a new handheld oscilloscope in the DSO line. I recently reviewed an oscilloscope that was a tethered USB oscilloscope and will use it as a comparison. The DSO213 is a compact, battery powered, oscilloscope that increases some specs over previous version the DSO203. DS213 Oscilloscope Unboxing and Teardown Pictures . I thought this was an interesting design choice. Pogo type pins connect this board. This series of scopes has been reviewed quite a bit and they have been well received and for a hobbyist they seem to be adequate. Model DSO213 DSO203 MCU STM32F103VE STM32F103VE ADC HWD9288 AD9288 Channels 2 analog, 2 digital 2 analog, 2 digital Analog Bandwidth 15MHz 8MHz Max Sample Rate 100MSa/s 72MSa/s Maximum Memory Depth 4K 4K Horizontal Sensitivity 100nS/Div~1S/Div(1-2-5sequence step) 0.1uS/Div~1S/Div(1-2-5sequence step) Vertical Sensitivity […]
eWelink Camera App Recycles Your Old Smartphone into a Remote Camera
Old devices often end up in drawers or shelves collecting dust, but as we’ve seen before there are better ways to recycle your unused gadgets, from giving it to friends or family to selling them on eBay, or re-purposing them for specific purpose. For example, we’ve previously covered Haven open source app that transforms smartphones into smart security cameras or baby monitors. eWelink, the default app used with Sonoff wireless switches, smart plugs and light-bulbs, now happens to support a similar feature. So if you’re using the stock firmware on your Sonoff device and control them with the Sonoff app, you don’t need an extra app to use your old smartphone(s) as IP camera(s). It looked easy enough to setup, so I gave it a try. First you need to download & install eWelink Camera app, only available as an apk at this time, in your old phone. Once the […]
Getting Started with Temperature & Humidity Sensors on ESP8266 using ANAVI Thermometer
ANAVI Thermometer was launched on CrowdSupply in January. It is an ESP8266 WiFi board with a built-in DHT22 temperature and humidity sensor, support for external DS18B20 waterproof temperature sensor, as well as other sensors thanks to three I2C sensors. I received the ANAVI Thermometer starter kit last month, and I’ve only found time to play with it in the last few days. I’ll start with a unboxing, assembly guide, before showing it action, and I’ll try to make it interface with Home Assistant over MQTT. ANAVI Thermometer Starter Kit Unboxing The kit comes with ANAVI Thermometer board, a plastic stand, a USB to TTL debug board, an I2C OLED display, a few nuts and bolts, and a couple of KiCad and ANAVI stickers. Leon ANAVI also added a traffic light board and LEDs, but it’s not normally part of the kit 🙂 ANAVI Thermometer board include an ESP8266 module, AM2302 […]
GameShell Kit Review – Part 2: An Hackable Retro Gaming Console
ClockworkPi GameShell is an hackable retro gaming console combining Arm Linux and Arduino boards that happens to come in kit form, and that’s lot of fun to assemble as we’ve seen in the first part of the review of ClockworkPi GameShell. Since then I’ve had time to have more fun, play some games, and experiment with the device, so I’ll report my experience and point out the good parts, as well as some of the shortcomings I came across. We can press the power button to start it up, and after a few seconds we get to the main menu with several icons including… the self-describing Settings, Retro Games with MAME, MGBA, NESTOPIA, and PCxs emulators that require your own ROMs/BIOS, as well as Indie Games with ready to play games like OpenTyrian spaceship shooting game, or NyanCat. Moving on to the right of the menu we’ve got the famous […]