MiniNodes has launched $259 pre-orders for a carrier board that supports up to 5x Raspberry Pi Compute Module 3 modules. The 5 Node Raspberry Pi 3 CoM Carrier Board provides a switched Gigabit Ethernet port to provide networking availability to each of the modules. The company explains the Raspberry Pi 3 CoM Carrier Board can be used…
Electronics developer Patrick Thomas Mitchell has recently launched on Kickstarter the new NRF24L01+ Arduino wireless transceiver shield which offers a lot of features and is available to back with early bird pledges from just $15 with worldwide shipping commencing near February 2019. “This shield is the centrepiece of this campaign. One hub shield can easily…
Katrina Nguyen is currently a Biomedical Engineering graduate student at Carnegie Mellon University studying motor neuroscience research. Katrina designed an open source automated feeding system that aims to help researchers better monitor the daily intake of laboratory animals: it is called FED (Feeding Experimentation Device). FED utilizes open-source software and hardware. The system dispenses a…
Researchers Alec Peery and Dušan Sorma at Ohio University have been exploring a mechanical keyboard concept with a 3D-printed dampener built in, to avoid typing injuries. In fact the average computer user applies two to seven times the necessary force needed to activate a keyboard’s keys, slamming them down, then experiencing a sudden stop. So…
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),…
I²CDriver is an easy-to-use, open-source tool for controlling I²C devices. It works with Windows, Mac, and Linux and has a built-in color screen that shows a live “dashboard” of all the I²C activity. The 61 x 49mm board is equipped with a Silicon Labs EFM8 controller and an FTDI USB serial chip to connect devices…
Using an array of 72 40kHz ultrasonic transducers to form standing waves of low and high pressure, the maker Julius Kramer has just created a 3d-printed acoustic levitator. 36 each are placed in the top and bottom shells of the device’s chassis. What’s interesting about Kramer’s build is that he does a great job illustrating how it works,…
Raspberry Pi enthusiast Aleksey Tikhonov has published details of his new Raspberry Pi project to create a Neural Network RaspberryPi Music box. All the experience gained in Aleksey’s past projects, a Raspberry pi 3 and Leadsound’s speaker have led to this new project. After making the Pianola network project, I came to the idea of the RaspberryPi…
Mug-O-Matic is a 3-axis drawing robot that can customize coffee mugs. It uses markers to draw anything you want on a coffee mug via manual controls, calculated algorithms, or even g-code. The mug can be washed clean with warm soapy water or the drawing can be made permanent by baking it in the oven. In its…
The Allo DigiOne Signature is a networked S/PDIF converter built on top of Raspberry Pi single board computer. The DigiOne HAT add-on directly connects to the Pi’s 40-Pin socket to pull digital audio upwards to output via S/PDIF with reduced amounts of jitter and/or electrical noise. “The DigiOne by itself sells for US$99. Don’t have…
Last month we spoke about the new Raspberry PI TV Hat announcement. Now we can see an example about how to use it for your next project! Just to briefly recap, the Raspberry Pi TV HAT allows you to receive digital terrestrial TV broadcast systems which includes DVB-T and DVB-T2 on a Raspberry Pi. Specification…
Instructables user MusaW has recently released a detailed guide to create a four leg (quadruped) robot using SG90 servo with servo driver and all controlled using WIFI Web server via smartphone browser: the total cost of the robot, including electronics and 3D printed components, is around US $55. There is a lot of NodeMCU variant in…
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