Adafruit has this week announced the availability of its new TinyPICO ESP32 offering a tiny development board suitable for a wide variety of different applications. The feature-rich ESP32 the powerful yet small development board is equipped with 4MB extra RAM, on-board RGB LED, and a 700 mAh 3.3V regulator. MicroPython firmware is pre-loaded, and with […]
New TinyPICO ESP32 development board Continue Reading
Overview: This instructable uses a Trossen Robotics Pan and Tilt kit to construct an Arduino controlled ping pong ball cannon. The project also uses several other components from Trossen Robotics including a medium solenoid, a relay and various items from one of their Robotics Grab Bags. A joystick controls the aiming of the cannon and a pushbutton controls the solenoid that
Arduino Ping Pong Ball Cannon Continue Reading
Building an Arduino project isn’t just about making all the components talk to one another. It’s about creating an actual object or prototype out of your small creation, and giving it that extra touch that makes it unique. For this next project, we took some very basic components: a one-wire temperature sensor and a 7-segment
Simple Arduino-based Thermometer Continue Reading
For many of us, ad hoc projects end up having a certain permanence to them. Think of the number of Raspberry Pis and RTL-SDRs that are just dangling from a USB cable under a desk or stuffed behind a monitor, quietly going about their business. If it ain’t broke, don’t fix it. Some projects, though,
WALL-MOUNTED GROUND STATION TAMES UNRULY SATNOGS NODE Continue Reading
The Arduino microcontroller makes it easy to learn about electronics, but it can be hard to know where to start. Fortunately, an “Arduino Book Teaches Electronics Skills” can provide a structured approach to learning, guiding beginners through the basics and beyond. The 10 projects in this book will teach you to build, code, and invent
New Arduino Book Teaches Electronics Skills One Project at a Time Continue Reading
Parallel processing is an idea that will be familiar to most readers. Few of you will not be reading this on a device with only one processor core, and quite a few of you will have experimented with clusters of Raspberry Pi or similar SBCs. Instead of one processor doing tasks sequentially, the idea goes,
PARALLEL PROCESSING WAS NEVER QUITE DONE LIKE THIS Continue Reading
Orlando Hoilett from Calvary Engineering LLC designed a versatile Li-Po battery breadboard power supply and wrote an Instructables on it. This power supply outputs 3.3V to the breadboard and takes input from a single-cell LiPo battery. The breadboard power supply also has the ability to charge the battery without needing to separate it from the circuit board. More importantly, this
VERSATILE AND OPEN SOURCE LIPO BBATTERY BREADBOARD POWER SUPPLY Continue Reading
For those of us who remember LED calculators, the HP 5082-7400 series red “bubble” displays hold a special charm. Available in 3, 4, or 5-digit varieties, these multiplexed 7-segment displays provided countless hours of entertainment to those who would spell upside-down words on their pocket calculators. In case you happen to be lucky enough to
NEW PCB REVIVES ANCIENT BUBBLE LED DISPLAYS Continue Reading
You’d be hard pressed to find a carpenter who didn’t own a hammer, or a painter that didn’t have a couple of brushes kicking around. Some tools are simply so fundamental to their respective craft that their ownership is essentially a given. The same could be said of the breadboard: if you’re working with electronics
THE AUGMENTED REALITY BREADBOARD OF THE FUTURE Continue Reading
The AEMLION is a 0.8×0.6 inch (20x15mm) PCB with the AEM10941 Solar Harvesting IC from E-peas. It efficiently converts solar energy into Li-ion battery charge, it even works with indoor light. It features 3.3V and 1.8V regulated outputs that are enabled when the battery has useful charge and a low battery warning that informs the
Solar harvesting into Li-ion battery Continue Reading
