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 16x2 LCD interfaced to the...

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...

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...

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 -...

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...

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...

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...

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...