TIBBO – MQTT LIBRARY DEMO

Tibbo created two small programs that illustrate how easy it is to write MQTT-enabled apps in Tibbo BASIC or Tibbo C. To illustrate the use of the MQTT library, we have created two simple Tibbo BASIC applications called “mqtt_publisher” and “mqtt_subscriber”. In our MQTT demo, the publisher device is monitoring three buttons (Tibbits #38). This is done through the keypad (kp.) object. The three buttons on t ...

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Chirp Microsystem Made The Smallest And Most Accurate Ultrasonic Time-of-Flight Sensors

Recently Californian startup Chirp Microsystems officially announced two discrete ultrasonic Time-of-Flight (ToF) sensors, the CH-101 and CH-201, with maximum sensing ranges of 1m and 5m, respectively. Both chips have a 3.5×3.5mm package and they are powered by same ASIC or application-specific integrated circuit for signal processing. To achieve different sensing ranges, the Piezoelectric Micro-machined Ul ...

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Arduino Solar Tracker (Single or Dual Axis)

https://youtu.be/5KljnLkbgB4 If you’ve installed solar panels on a camper van to provide you with electricity on your camping trip or at home to supplement your electricity usage or take your home completely off grid then you probably know that the panels work the best when they are aligned directly towards the sun. This sounds simple enough, except that the sun moves throughout the day. This is why there a ...

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A COST-EFFICIENT SUPER-CASCODE SIC SWITCH

Coping with rapid technological advances and finding efficient energy solutions are the keys for development of power electronics of the future. A new research had been done in North Carolina State University about increasing the efficiency of high-power switches. Silicon Carbide is a compound of silicon and carbon with chemical formula SiC. It is a wide bandgap (WBG) semiconductor, that allows devices to o ...

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L20G20IS Gyroscope: The secret behind the perfect picture

STMelectronics introduces a super tiny two-axis gyroscope (L20G20IS), a Micro-Electro-Mechanical system (MEMS) designed for the optical image stabilization for Smartphones with less energy consumption compared to its predecessor (L2G2IS). A gyroscope, or gyro for short, adds an additional dimension to the information supplied from the accelerometer by tracking rotation or twist. An accelerometer measures li ...

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BLE CARBON, THE NEW $28 IOT EDITION SBC

Linaro, a collaborative engineering organization consolidating and optimizing open source software and tools for the ARM architecture, is bringing together industry and the open source community to work on key projects, reduce industry wide fragmentation, and provide common software foundations for all. During the last Linaro Connect event at Las Vegas, a new BLE(Bluetooth Low Energy) product had been debut ...

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Arduino Data Glasses for My Multimeter

https://youtu.be/lkl6yVauCKg Video of the working device Trying to build a cheap Arduino Data Glasses for everybody. Why? I just wanted one. It's working, and now it can even help to avoid accidents. From the first idea to the working prototype, it took 4 Month The challenge was, that It should be constructed out of common materials that can be found easily. The project is more about how to build the optica ...

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Brand New BiCMOS Flexible Transistor

The transistor revolutionized the field of electronics, and paved the way for smaller and cheaper radios, calculators, and computers, among other things since its very first practically implemented device as a point-contact-transistor invented in 1947 and getting the Nobel Prize in Physics in 1956. Now, engineers from the University of Wisconsin-Madison (UW-Madison) have built the most flexible, fully-funct ...

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GLUCOSE WEARABLE BIOSENSOR

Biosensors for consumer wearable devices is a new trend as it facilitates multiplexed physiological monitoring for quantitative assessment of body functions. Highly functional wearable biosensors that can also provide meaningful diagnostics to guide therapeutics would be extremely valuable to end-user consumers or health-professionals. Researchers at The University of Texas at Dallas developed a wearable de ...

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Scanning Laser Microscope With Arduino

I'd like to share my latest project, a scanning laser microscope with you. Some words concerning the principle: The pinciple is quite simple. The laser beam is focused on the object and the reflective light is being measured with a photodiode (in my case a BPW34). To focus right the current through the focusing coil is varied. The position of the object is changed by two Speakers, which are driven with diff ...

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obniz – API managed IO on the Cloud

Cloud connected Development Board obniz is development board which has 12 IO and WiFi-BLE module. It can be controlled through the APIs on obniz cloud, either through the REST or WebSocket API. obniz API can be used in javascript. So, obniz programs written in JavaScript can run on a webpage, so "Turning on a motor by pressing a button on the Web" is an easy task! With obniz, it's easy to make any hardware ...

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HC-12 433MHz wireless serial communication module configuration

Description HC-12 are cheap 433MHz wireless serial port communication modules with a range up to 1800m in open space. Each costs about $5 when bought from China, and 2 of them can create wireless UART link that can be used, for example, to transfer telemetry data from UAV. Or drive IoT device. Or connect sensors. Or whatever else one can think of. It is based on SI4463 RF chip, has build in microcontroller, ...

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