Category: Test/Measurements

Jack Ganssle @ embedded.com reviews the Siglent SDS 2304X oscilloscope. I’ve had a Siglent SDS1102CML two channel 100 MHz bench scope here for the last two years. I demand a lot from my test equipment so had low expectations when it arrived. After all, how good can a $359 unit be?...

Sparkfun has a simple-to-use and open source solution for measuring weight and temperature. All you need is a load cell hooked up with OpenScale. You may find a variety of high quality weight sensors to be used in this project on Flintec load cells. OpenScale uses HX711, a 24-bit...

The SparkFun Battery Babysitter is an all-in-one single-cell Lithium Polymer (LiPo) battery manager. It’s half battery charger, half battery monitor, and all you’ll ever need to keep your battery-powered project running safely and extensively. The Battery Babysitter features a...

by Jim Williams @ end.com The simplest model of a battery comprises an ideal voltage source that connects in series with a resistance whose value—often a few milliohms—depends on the battery's electrochemical condition and construction. If you attempt to use an ordinary ac...

by Jim Williams @ edn.com If you need to produce extremely fast pulses in response to an input and trigger, such as for sampling applications, the predictably programmable short-time-interval generator has broad uses. The circuit of Figure 1, built around a quad high-speed comparator...

Tiny Bar-Graph current meter displays a Red color bright, easy to read display of current range from 0 to 1A.  This Bar-Graph has 20 segments in single color and display 0 to 1Amp Current. The Barograph current monitor is based on PIC microcontroller with 10 Bit resolution ADC. ...

Tiny Bar-Graph displays provide a Red color bright, easy to read display of Voltage range of 0 to 5V. This Bar-Graph has 20 segments in single color and display 0 to 5V DC. The Barograph Voltage monitor is based on PIC microcontroller with 10 Bit resolution ADC. This high performance...

Jason Jones has tipped us with his latest project. He is working on a semiconductor curve tracer and details his progress on his website. I have thought about this a lot recently and - in order to get the cost down - the unit must have a cheap or available power supply and must coopt...