This was a project begun last winter in the hopes of having an array of thermocouples to monitor my old woodstove when operating it. Well, I never got around to finishing it, but I have a fancy new woodstove as of this fall, and I would love to monitor its temperature curves likewise! This BoosterPack […]
Monitoring Woodstove Temperature With A MAX31855 Quad Thermocouple BoosterPack Read More »
This month’s patent caught my eye for a number of reasons. First, it is a nice follow-on to my article last month, since the invention is surprisingly simple and superficially straightforward (but as I said then, as long as it’s new and inventive then it satisfies the requirements for patentability). This also makes the invention
Electronics patent of the month: Illumination arrangement for roadside furniture Read More »
Classic AC 230 V Timer project can be used in all application requiring a timer of up-to 3 Minutes to operate or control any AC mains load of up-to 200 Watts. This project is based on the Classic 555 Timer IC, triggering a TRIAC. Input and Output is Optically Isolated. Specifications Supply input 12 VDC
This project is aimed to design a ‘Sleep and Wake-up Assistant’. Different from a normal alarm clocks which can only make noise, this alarm clock is designed to wake up a person in a comfortable and effective way by involving sound, light stimulation, motion detection and vibration. The functions of this alarm system are: (
A PIC-based Alarm clock system Read More »
In this article, I would like to talk a little bit about LEDs, including why they will become the lighting source of choice, how to power them and also, how to protect them from the hazards they face within their respective implementations. These include high bay lighting, architectural lighting, outdoor street lighting and even 75W
Linear Tech on how to power LEDs and protect them Read More »
2 Digit Count Down Timer is a utility Count Down timer project for upto 99 seconds of countdown time. This project can find many uses in your shack and home. The relay output remains on during the Count Down period, allowing you to interface load or alarm that you want to keep it on for
2 Digit 99 Seconds Timer Read More »
To create a PCB with 3Drag , by milling , it is necessary to have the G-Code files for the tracks patterning and for the holes relating to the printed circuit board itself. In this section we describe how to obtain these G-Code files using a specific plugin for the popular PCB design software ”
3Drag as a CNC milling machine: Creating G-Code via EAGLE software Read More »
Features Bidirectional Synchronous Boost Capacitor Charger/Buck Regulator for System Backup Wide Input Voltage Range: 3V to 17V Up to 40V Capacitor Voltage Storage for High Energy Backup 2A Maximum CAP Charge Current Integrated Power N-Channel MOSFETs (150mΩ Top and 75mΩ Bottom) Integrated Power N-Channel MOSFET for Output/CAP Disconnect (50mΩ) Input Current Limit During Charging Fast 1MHz Switching Frequency
LTC3643 – 2A Bidirectional Power Backup Supply Read More »
Graphics processor firm Nvidia sees a big opportunity for its GPUs in high performance computing (HPC), sometimes referred to as supercomputing. not have the programmable flexibility of CPUs. Maybe a decade ago research showed that by using many GPUs in a low latency (ie with high speed interconnect) it was possible to create a powerful
Tesla is not Nvidia’s only HPC processor Read More »
I did the teardown of the CSI 75W solder station as well as the Hakko 936. The Hakko of course had all analog circuits using operational amplifiers and potentiometers as well as a temperature sensor in the iron tip to signal back to a triac chip controller which would trigger the triac to push 24
CSI Premier 75W and Hakko 936 Solder Station Teardowns Read More »
