PUB! is a Programmable USB Button on which you can program a sequence of keystrokes. When you press the button those keystrokes are “replayed” over a USB connection. The button (which is really a rotary encoder with a built-in push button switch) is programmed using an innovative and slightly quirky interface that does not require […]
PUB! Programmable USB Button Continue Reading
Ventilation, air conditioning (HVAC), or any other applications, where a pressure or a flow of air (gas) is essential, can be precisely regulated only if we know a real pressure/ flow conditions. Monitoring of fans functionality, status of filters, …, even for this purpose are very suitable differential pressure sensors from Swiss company Sensirion with
Sensirion SDP sensors measure pressure but even a flow Continue Reading
Abstract: This design idea presents an integrated IF voltage-controlled oscillator (VCO) that can retransmit the audio signal from a cell phone to the FM broadcast band. By placing the cell phone’s speaker near the microphone, the user can use the phone as a hands-free device while driving. The circuit in Figure 1 can retransmit the audio
VCO enables a hands-free car kit for cell phones Continue Reading
To measure my electricity usage I decided to build a small system that would count LED blinks on my power meter which indicate the used Wh. It was pretty straight forward system requiring an Internet connected microcontroller to log the data and some sort of sensor that would detect LED blinks on the power meter
Electricity Usage Monitor Using Arduino Continue Reading
In line with broadening of our services and support to our products, we offer you a possibility to get off of troubles with printing of labels and other markers for devices, cables, terminal blocks,… We offer you a service of a preparation for print and printing of labels and terminal blocks itself according to your
New service for you – comfortable labeling of cables, terminal blocks and devices Continue Reading
Project summary I found those beautiful vintage IV9 & IV16 tubes and I had to use them, clock being the perfect candidate. I made already mutliple others based on what was supposed to be a WordClock (hence the project name) only, but became more diversified. I did also a first test with a chainable 5cm
IV9 & IV16 tube numitron clock Continue Reading
A long while ago I wrote about that I might make a series of boards for easier testing of the open USB stacks. Testing all different version of mcu’s and crystal speeds to make the right #defines and linker maps for the firmwares can be a bit tedious. OSUS will make life a bit easier
OSUS – Open source USB Stack test board Continue Reading
This is a very low cost and basic from of home automation allowing you to turn on and off lights and other devices using your computer or mobile phone. It has been built and tested use using UK power plugs, but the same protocol is used on many budget remote power switchers from around the
Internet Controlled Mains Switcher Continue Reading
TLF4277-2EL Description: The TLF4277-2 is the ideal companion IC to supply active antennas for car infotainment applications. The adjustable output voltage makes the TLF4277-2 capable of supplying the majority of standard active antennas such as: • FM/AM • DAB • XM • SIRIUS The TLF4277-2 is a monolithic integrated low drop out voltage regulator capable
Automotive Active Antenna Supply Solution Continue Reading
Flat displays of the EA DOG series are now available even with a bigger resolution or with more characters. EADOG series is familiar to many of you and probably it´s your favorite one from these main reasons: ● displays are unusually flat (thin) ● the have a very low power consumption of 100-s uA (without
EA DOG displays with a minimal power consumption now available in bigger sizes Continue Reading
