A Guide to Metal Core PCBs by PCBGOGO

Introduction: The use of LED based electronics has significantly increased in the past few years. They have proven to be more efficient and nearly 5 times cheaper than normal incandescent units. But with their use came one downside: heat. Some devices tend to use a number of LEDs that remain on for a long period of time and so can overheat. The LEDs are usually mounted on PCBs and can therefore cause signif ...

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Tiny Wi-Fi Switch for $3

Out of curiosity, I ordered the tiny ESP8266 relay switch from aliexpress.com but never knew it could be so embarrassing to find the right way to operate. The vendor said that the switching program is inbuilt and I only have to use some android phone to operate it. But despite several attempts with several Chinese and English android apps, nothing happened The device gets connected with the WiFi of my PC or ...

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NXP’s MMA8451QR1 Accelerometer

Process computer designs usually start out with an accelerometer. As reliability problems creep in, making the switch to a more “professional” solution is beneficial. Accelerometers are based on the MEMS principle: instead of being a purely solid-state affair, the inside of the chip contains a micromechanical motion sensor along with a small mass. In addition to that, a set of transducer circuits are provid ...

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IoT Wine-Tender-Arduino MKR1000!

This circuit serves a wine using a mini water pump all controlled from your phone. Enjoy it during your holidays! Things used in this project Hardware components Arduino MKR1000 × 1 DC motor (generic) × 1 SparkFun Dual H-Bridge motor drivers L298 × 1 Software apps and online services Evothings Studio Arduino IDE Hand tools and fabrication machines CNC Machine Story [embed]https://youtu.be/ZW_R7CPU76w[/embed ...

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Arduino Science Kit targets 11- to 14-year-olds

Those Gadget Masters who have school age children may be interested in this one: the Arduino Science Kit Physics Lab. The package been designed to support “scientific exploration” for school kids between 11 and 14. Experiment with forces, motion, magnetism, and conductivity. Students will make their own hypothesis like real scientists, then check their assumptions, and log data thanks to Google’s Science Jo ...

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Evaluation board for STSPIN820 stepper motor driver

The EVALSP820-XS is a compact and easy to use evaluation board for the STSPIN820, the world’s smallest 45 V microstepping motor driver rated at 2.5 A. It provides a very compact solution to evaluate the performance of the STSPIN820 stepper motor driver with a minimum set of additional equipment and without the need of additional devices. The hardware is fully compatible to be used together with RAMPS or oth ...

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Monitor fridge with Arduino MKR1000 and thethings.iO

To assure that your beer (and other) beverages are at a cool temperature, today we show you how to remotely monitor your fridge! Things used in this project Hardware components Arduino MKR1000 × 1 Temperature sensor DS18B20 × 1 Jumper wires (generic) × 3 Hand tools and fabrication machines Soldering iron (generic) Story Introduction Today we will show you how to monitor a fridge using an Arduino MKR1000 and ...

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CUSTOM LORA PAGER DESIGNED WITH CARE

LoRa is a useful technology if you need to send data a long way at low power levels. Leveraging this, [5Volt-Junkie] decided to build a small pager named the LoRaNicator. Those who love a detailed build log will enjoy this. The pager features everything up to and including the kitchen sink. A Cortex M0+ runs the show, flashed with an Arduino compatible bootloader, while a RFM95W module handles the LoRa comm ...

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THIS FORCE CONTROLLED ROBOT GRIPPER IS LESS LIKELY TO BREAK STUFF

While robotic arms can handle a wide variety of tasks, the specific job at hand will have a major influence on the type of end effector used. For sorting ferromagnetic parts an electromagnet might be enough, while for more accurate location a mechanical gripper could be employed. If you’re working with particularly delicate objects or in concert with human beings, it may be desired to have a force controlle ...

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Using NXP’s NXQ1TXH5 Qi Charging Circuit

Adding wireless charging to furniture and other consumer goods is a nice way to add some oomph to an otherwise boring product. NXP’s NXQ1TXH5 provides an interesting, albeit difficult-to-prototype way around the problem. Creating a Qi-compatible is as easy as assembling the example circuit shown in figure one. From a technical point of view, the diagram is full of decoupling capacitors but does not require ...

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Smallest IoT Home Automation using ESP8266 – 01 with Videos (Hindi & English)

In this project, we will be using the ESP8266 – 01 Wi-Fi Development board to make asmall home automation that has Wi-Fi featured in it. The system operates on a local web server and is easy to use for the novice. With this project, we can control at most two AC appliances which suit best for your small IoT projects. Espressif developed Wi-Fi enabled microchip – ESP8266 proved to be a boon in the IoT field. ...

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Temperature Monitoring with Arduino MKR1000 and ARTIK Cloud

Setup an Arduino MKR1000 board to read temperature data and send those readings to ARTIK Cloud for monitoring. Things used in this project Hardware components Arduino MKR1000 × 1 Temperature Sensor × 1 Software apps and online services Samsung ARTIK Cloud for IoT Story This project setup an Arduino MKR1000 board which reads temperature data and sends those data to Artik cloud. The project consists of three ...

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