Researchers at the Stanford University School of Medicine have developed a way to produce a cheap and reusable diagnostic “lab on a chip” with the help of an ordinary inkjet printer. At a production cost of as little as 1 cent per chip, the new combination of microfluidics, electronics and inkjet printing technology could usher […]
1 Cent Lab-On-A-Chip For Early Diagnostics Read More »
Castellations are small plated edges, typically used for making circuit boards into small pcb modules. These are often seen on wireless modules, such as the ESP8266-12E. While we don’t offer full support for castellations, they can be fabricated if you don’t mind a few minutes of rework and verification of the PCBs. Design Considerations It’s
Castellated PCB Edges Read More »
Ultra-Low Power LiPo Charger via Energy Harvesting from a Solar Cell What is it? This is a small (0.5 x 0.5 inch) breakout board for Texas Instrument’s BQ25504 Ultra Low Power Boost Converter with Battery Management for Energy Harvesting Applications. From the datasheet: “The bq25504 device is the first of a new family of intelligent
BQ25504 Solar Cell LiPo Charger Read More »
This is probably the simplest possible digital voltmeter with Atmel AVR microcontroller. The circuit is controlled by a microprocessor IO1 – Atmel AVR ATmega8 (ATmega8, ATmega8L), a program to download and configuration bits setting is below. (ATmega8 may seem too “big”, but was chosen because it is one of the most frequently used AVR and
The simplest digital voltmeter with AVR Read More »
This article describes a simple continuity tester, based on an ATtiny85 and a piezo buzzer, designed for checking circuit wiring, or tracing out the tracks on a PCB: It has a low threshold resistance of 50Ω to avoid false positives, and passes less than 0.1mA through the circuit under test, to avoid affecting sensitive components.
10 or 12-bit DAC from the ATtiny85 Read More »
Roadie Tuner is a dream come true for guitarists! The automatic ring tuner, that is quick, easy to use, and three times more accurate than the human ear, is dedicated to beginner guitarists who are almost always frustrated with not knowing how to tune their guitar. This ultimate musician’s tool works on all string instrument
Tune Your String Instruments Perfectly With Roadie Tuner Read More »
Since 2013, the additive manufacturing startup Carbon had altered the 3D printing industry. Carbon produced its industry-changing M1 3D printer and CLIP 3D printing technology, bringing never-before-seen printing speed and end-use-quality polymer parts to the market. Today Carbon is on a mission to help manufacturers and designers cut their costs, waste less energy and
Carbon Introduces SpeedCell System & Bigger 3D Printers Read More »
The 74181 ALU (arithmetic/logic unit) chip powered many of the minicomputers of the 1970s: it provided fast 4-bit arithmetic and logic functions, and could be combined to handle larger words, making it a key part of many CPUs. But if you look at the chip more closely, there are a few mysteries. It implements addition,
Inside the vintage 74181 ALU chip Read More »
In patnership with Digi-Key, Supply Frame and Microship, Hackaday is calling for the curious, the creative, and the determined who are working to create social change in order to transform the world using their hardware and programming knowledge in addition to scientific, design, and mechanical abilities. This contest by Hackaday will encourage people innovate projects that can impact in
Call for Makers: Hackaday Prize for Social Impact Projects Read More »
Texas Instruments has announced the SimpleLink MCU platform, which is transforming the pace of product proliferation by uniting a robust set of hardware, software and tools under a single development environment. The SimpleLink MCU platform offers a new software development kits (SDKs) based on a shared foundation of drivers, frameworks and libraries to enable scalability with
SimpleLink MCU platform Launched By TI For Scalable Product Development Read More »
