The SparkFun Pro nRF52840 Mini Bluetooth development board is now available priced at $30 and features a ARM Cortex-M4 CPU supported by 1MB internal Flash and 256kB internal RAM. The board comes pre-programmed with a USB bootloader. You can develop programs for the nRF52840’s Cortex-M4 using either Arduino, Circuit Python, or C (using Nordic’s nRF5 SDK),…
An audio file player based on an MP3 module with FM radio, Bluetooth and remote control; a 10 V stereo output and two speakers are used for the listening. The device can even work via outlet or using two 3.7 V rechargeable lithium batteries. We all know we can find any kind of loudspeakers…
PiGlass for sure is a remarkably cool and educational project you can tackle yourself. It’s based around a $10 Raspberry Pi Zero W, and to that you need to add the Pi Zero Spy Cam as well as a Bluetooth dongle, a battery pack, and a few other extras, including the specs themselves. You’re also…
If you ever find yourself needing someone to talk to and can’t find a confidant then the Eve chatbot by Debashish Buragohain will happily fill in. “With her, You can share your experiences, your feelings and most importantly, argue about different things; she is well-experienced at it. Because that’s the most important function of a…
The Hybrid Ecologies Lab at UC Berkeley have created interactive hair extensions capable of changing shape and color, sensing touch, and communicating over Bluetooth. Hair is a unique and little-explored material for new wearable technologies. Its long history of cultural and individual expression make it a fruitful site for novel interactions. In this Instructable, we will show you how…
Shenzhen Xunlong has just launched the new Orange Pi 4G-IOT for $45 on Aliexpress. The open-spec SBC includes an unnamed, 4G LTE radio module with mini-SIM card slot, as well as a combo module that includes WiFi, Bluetooth, FM, and GPS. There is also support for a fingerprint sensor. The SBC runs Android 6.0 on…
“Similar to the classic music games like Rock Band and Guitar Hero, we use a TFT to display notes that move across the screen towards a strum region, produce guitar plucks and undertones of a song, and keep track of the user’s score. The user plays notes on a wireless mock guitar built with carbon-impregnated…
Techbase announced several enhancements to its Linux-driven ModBerry family of automation controllers, which are based on a variety of open source boards. First, the company is introducing a new version of its ModBerry 500 to add an Espressif ESP32 module as a backup system for its Raspberry Pi Compute Module 3 (CM3) computer-on-module. The Gdansk,…
Whether you’re interested in enhancing model trains, or simply want to hear more about integrating LED matrix displays into your next project, here you have some information you might find interesting. “I have used LED matrix displays for a number of different projects over the last few years. These 8×8 LED units have a controller that…
Lime Microsystems has unveiled a size- and cost-reduced variant of the LimeSDR board that it launched last year. The LimeSDR Mini is a free and open source project that supports the company’s entirely open-source LimeSuite host-side software that supports a range of SDRs. At 69 x 31.4mm, the LimeSDR Mini is about one-third the size of the original model,…
Here comes a new board for prototype creation of connected applications and in IoT: richly equipped with Wi-Fi, Bluetooth, NFC and a battery for autonomously operation. It almost sounds like the last name of a noble or Royal family, instead, it identifies the latest board (the name is almost in antithesis with its order…
Everyone knows Raspberry Pi, maybe everyone’s got one…but what if you want something different? The Raspberry Pi is an awesome computer for the price, but it is not the only single-board computer in the market, of course. If you want more power, or something that costs even less, there are a lot of alternatives out there….
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