How to Set Up an Ultrasonic Range Finder on an Arduino

Ultrasonic range finders are fun little modules that measure distance. You can use them to find the distance to an object, or to detect when something is near the sensor like a motion detector. They’re ideal for projects involving navigation, object avoidance, and home security. Because they use sound to measure distance, they work just as well in the dark as they do in the light. The ultrasonic range finde ...

Read more

Wireless LCD Display via Bluetooth

This wireless LCD display shows information sent from a smartphone. The user can send text messages with up to 32 alphanumeric characters to the LCD within Bluetooth range of about 10 metres. This project can be extended and implemented in many ways for: 1. Educational organisations (schools and colleges). To inform any changes in the timetable or important information 2. Hospitals. To inform a doctor’s nam ...

Read more

Commercialised 1005-size metal power inductor

The expansion of the line-up of the metal multilayer chip power inductor MCOIL MC series, from TAIYO YUDEN, which uses a metallic magnetic material, as well as the commercialisation of the tiny metal power inductor MCEE1005 (1.0×0.5×0.55mm, maximum height), has been announced. This power inductor is used as a power choke coil in power supply circuits for wearable devices, smartphones, and IoT devices. By so ...

Read more

DIY IKEA Wireless Qi Charging

The Achilles Heel of the Mikroelektronika Hexiwear is its charging: the charging and USB connector are only designed for a limited number of plug-unplug cycles, and it does not have a wireless charging capability like the Apple iWatch. Until now! I have built a DIY wireless charging system for the Hexiwear 🙂 : Wireless Qi Charging? IKEA!!!! I have been experimenting with wireless charing for a few weeks, in ...

Read more

Distrelec adds the new Sony Spresense range to webshop

Distrelec Ltd, leading European distributor of electronics, automation and measurement technology has added the new Spresense range by Sony, manufacturer of consumer and professional electronics, to the webshop. The Spresense is a compact development board based on Sony’s power-efficient multicore microcontroller CXD5602. Featuring an integrated GPS, high-res audio output and multi mic inputs, the board is ...

Read more

3-axis inclinometer delivers digital true inclination angle output

Murata has released a new 3-axis inclination sensor with a tilt angle output and digital SPI interface. The SCL3300 series will be used in a variety of demanding applications including levelling, tilt sensing, machine control and structural health monitoring. Based on Murata’s proven 3D-MEMS sensing technology, the SCL3300-D01 is a 3-axis (XYZ) inclinometer with 4 user selectable measurement modes which can ...

Read more

Circuit Board Design for Beginners

By: Alex Danovich,President San Francisco Circuits We live in an exciting time where we see a resurgence in electronics as a hobby. Mass production has wiped out a generation or two of kids learning to build radios from scratch with their mom or dad. In the good old days, not sure when, you had companies like Heathkit walk you through building a full size color TV at home, for example. “Yes, I made that!” y ...

Read more

THE NO-PARTS TEMPERATURE SENSOR IN YOUR ARDUINO

[Edward], creator of the Cave Pearl project, an underwater data logger, needed a way to measure temperature with a microcontroller. Normally, this problem is most easily solved by throwing a temperature sensor on the I2C bus — these sensors are cheap and readily available. This isn’t about connecting a temperature sensor in your Arduino. This build is about using the temperature sensor in your clock. The AT ...

Read more

ESP32 Internet Radio

The cheap MP3 VS1053 codec processor from aliexpress.com is told to be capable of decoding a variety of music formats, including Ogg Vorbis/MP3/AAC/WMA/MIDI audio. VS1053 is also capable of recording in Ogg Vobis file but all the guidance that is available on Internet are either for proprietary boards or for ESP32-IDF which not preferable to try due to excessive coding. A code more than 20 lines is enough t ...

Read more

Radioactivity detection using very simple ionization chamber

Today I will show a very simple ionization chamber that can detect radioactivity. I was able to detect with it ionizing radiation from a smoke detector (Am241 isotope). It's also immune to electromagnetic interference (EMI) due to a good shielding. This device doesn't explicitly use any power supply. It's connected to a multimeter set to measure resistance, in this mode, the multimeter provides a small volt ...

Read more

MUSTANG DASH BECOMES BOOKSHELF ART PIECE

Despite most of the common gauges remaining the same over the last 60 years, the automotive dashboard of days past used very different technology to those today. Cable driven speedometers were common, along with mechanical drive for the odometer, too. Fuel and temperature gauges were often wired directly to their senders, and some oil pressure gauges actually ran an oil line right up to the back of the dash ...

Read more

HSN-1000 Nuclear Event Detector

DDC’s HSN-1000 radiation-hardened Hybrid Nuclear Event Detector (NED) senses ionizing radiation pulses generated by a nuclear event, such as the detonation of a nuclear weapon, and rapidly switches its output from the normal high state to a low state with a propagation delay time of less than 20ns. The active low Nuclear Event Detection signal (NED) is used to initiate a wide variety of circumvention functi ...

Read more
Scroll to top