Distance Measurement using Infrared Sensor with ADC0804 & 8051 Microcontroller
https://www.electronics-lab.com/distance-measurement-using-infrared-sensor-with-adc0804-8051-microcontroller/
This project primarily consists of four units: Microchip Technology’s SST89E54RDA-40-C-PIE, a sensor unit, an ADC0804 ADC component and the LCD module. Along with detecting an obstacle, its exact distance is also calculated and displayed on a 16×2 LCD interfaced to the microcontroller. The IR receiver detects the IR radiations reflected by the object being measured. […]
Raspberry Pi OLED Internet Bandwidth Display
https://www.electronics-lab.com/raspberry-pi-oled-internet-bandwidth-display/
by Archie500 @ instructables.com: In a very brief summary it works as follows: The Raspberry Pi uses SNMP (Simple Network Management Protocol) to get the WAN data rates from the router and then displays these graphically on the OLED screen. The Raspberry Pi was already set up as our media player and is next to the […]
Energy Harvesting Circuit
https://www.electronics-lab.com/energy-harvesting-circuit/
by hackarobot.com: Recently, I built an energy harvesting circuit based on an ultra low voltage DC/DC step up converter chip (LTC3108) from Linear Technology. With a 1:100 coil transformer (CoilCraft LPR6235), it converts the tiny voltage generated from Peltier thermo-electric generator into high enough level to drive small circuits. Energy Harvesting Circuit – [Link]
Extech GX900 vs Fluke 287 Graphical Multimeter Review
https://www.electronics-lab.com/extech-gx900-vs-fluke-287-graphical-multimeter-review/
This is a review of the Extech GX900 vs Fluke 287 Multimeter Extech Is owned by FLIR. Thanks to FLIR for providing the GX900 for this review. Extech GX900 vs Fluke 287 Graphical Multimeter Review – [Link]
Siglent SDM3055A (SDM3055) 5.5-Digit Multimeter Review, Teardown & Experiments
https://www.electronics-lab.com/siglent-sdm3055a-sdm3055-5-5-digit-multimeter-review-teardown-experiments/
In this episode Shahriar reviews the Siglent SDM3055A (SDM3055) 5.5-Digit Multimeter. After a brief look at the instrument’s datasheet, a full teardown is presented. The instrument utilizes a two-board design and a large LCD screen. The SDM3055A provides a comprehensive set of measurements including capacitance as well as various graphing capabilities including histogram, trend and […]
Scullcom Hobby Electronics #26 – Build a Function Generator Part 2
https://www.electronics-lab.com/scullcom-hobby-electronics-26-build-a-function-generator-part-2/
by Scullcom Hobby Electronics @ youtube.com This is part 2 of the building a function generator. We cover the output stage and discuss some changes to the original design. Finally, we build the project in to a case and test. Below are the links to the latest main schematic diagram and a second file for the […]
Infineon’s Security Chip
https://www.electronics-lab.com/infineons-security-chip/
by Martin Cooke @ elektormagazine.com: Protection of Intellectual Property is a major issue as industrial systems become increasingly more interconnected. According to Bartol Filipovic, head of the Product Protection and Industrial Security department at the Fraunhofer Institute for Research “Most companies have no idea just how easy it is to copy their products, encrypted software is […]
Circuit adds foldback-current protection
https://www.electronics-lab.com/circuit-adds-foldback-current-protection/
by Rafael Garcia-Gil @ edn.com: For many applications that require power-supply currents of a few amperes or less, three-terminal adjustable-output linear voltage regulators, such as National Semiconductor’s LM317, offer ease of use, low cost, and full on-chip overload protection. The addition of a few components can provide a three-terminal regulator with high-speed short-circuit current limiting for […]
Use an LM317 as 0 to 3V adjustable regulator
https://www.electronics-lab.com/use-an-lm317-as-0-to-3v-adjustable-regulator-2/
by Vladimir Rentyuk @ edn.com: Most engineers know that they can use an inexpensive, three-terminal adjustable regulator, such as Fairchild Semiconductor’s LM317, as an adjustable regulator to only some necessary value of voltage, such as 36 or 3V. This value cannot be less than 1.25V without employing other approaches, however. The devices’ inner reference voltage is […]
Making the new silicon: Gallium nitride electronics could drastically cut energy usage
https://www.electronics-lab.com/making-the-new-silicon-gallium-nitride-electronics-could-drastically-cut-energy-usage/
by Rob Matheson @ phys.org: An exotic material called gallium nitride (GaN) is poised to become the next semiconductor for power electronics, enabling much higher efficiency than silicon. In 2013, the Department of Energy (DOE) dedicated approximately half of a $140 million research institute for power electronics to GaN research, citing its potential to reduce worldwide […]