Sensirion, the worldwide leading manufacturer of high-quality flow and environmental sensors, is launching a new evaluation kit. With the EK-F3x-CAP, expiratory and proximal sensors of the SFM3xxx platform can be tested quickly and easily. The evaluation kit works with both the disposable and reusable variants of the flow sensors. The EK-F3x-CAP evaluation kit offers a simple and cost-effective way to test ...

LCR Pro1 from LCRresearch.com integrates a pair of tweezers like probes and a LCR meter into a single compact, lightweight, battery powered device. It is an all-in-one portable device that provides a simple and efficient solution for not only measuring SMD components but also making in-circuit debugging. LCR Pro1 delivers high accuracy once found only in high-end desktop LCR meters. It provides basic accura ...

Prepaid Energy Meter with GSM Modem using pic microcontroller: The interfacing of prepaid energy meter with GSM (Global system for mobile) modem is very credible for both consumer and energy supply company. Basically, this is the concept of electronic energy meter for records the consumer billing, the minimization of energy theft and reducing the energy losses as compared to the conventional electromechanic ...

A China-based manufacturer called RAK Wireless has released the RAK833 LoRaWAN gateway module a couple months back. This has already been used hugely to create a gateway for ‘The Things Network’. Now they’re back with the new RAK8213, an NB-IoT and LTE Cat M1 module in the same mini-PCIe form factor as the RAK833. The RAK mini-PCIe card is constructed around the Quectel BG96 module, which provides both NB-I ...

Weather monitoring systems are available in plenty and these are pretty handy gadgets we use in our daily life for weather forecasting and other purposes. But these kinda gadgets might be expensive and may not be available for customization to our specified purpose. To overcome these advantages you can build this customized weather meter using PIC microcontroller which won’t cost much like those gadgets. Th ...

This is a revised version of my LM35 based digital thermometer project that I posted last year. Although it is one of the simplest projects, it is very popular among newbies who are just starting to learn microcontrollers. There was a little flaw in the original project as pointed by some readers. I was using a 1.2 V reference for A/D conversion with PIC16F688 microcontroller. However, the PIC16F688 datashe ...

A bubble or spirit level meter is a handy tool to find whether a surface is horizontal or vertical. It is often carried by civil engineers, mechanical engineers, surveyors, carpenters, and many other professionals whose work involve precise alignments of horizontal and vertical planes. Original spirit levels had two banana-shaped curved glass vials at each viewing point and were much more complicated to use ...

This project is about building a microcontroller-based digital room thermometer plus hygrometer that displays temperature and relative humidity on 4 large (1 inch) seven segment LED displays which adjust their brightness level according to the surrounding illumination. It consists of a closed loop system that continuously assesses ambient light condition using an inexpensive light-dependent resistor (LDR) a ...

Capacitors are one of the most common passive electrical components that are extensively used in all kinds of electronic circuits. In this project, we will discuss a technique of building a digital capacitance meter using a PIC microcontroller. This project can measure capacitance values from 1 nF to 99 ?F, with a resolution of 1 nF. The technique is based on measuring the time elapsed when a capacitor is c ...

An article by Dieter Laues in the February 2012 issue of Elektor inspired me to get my soldering iron out. The article described how by measuring the frequency of the mains electricity supply in any socket, the relative load across the entire electricity network could be determined. I ordered a pre-programmed processor (of the correct supply frequency) and built a meter for the electrical engineering depart ...