When a black object such as a piece of iron is heated up it changes colour depending on the temperature that it is heated to. It turns out that this range of colors is very useful for describing the colour tint of white light. You can actually determine the temperature of hot iron by measuring its […]
All posts by
Comparators General
When Input+ > Input- the output is high. When Input- > Input+ the output is low. Important specifications when choosing a comparator Differential input – just like op-amps don't assume a comparator will operate rail to rail on its inputs, always look for the "differential input", "common-mode input voltage range" or similar rating to see over what range it will accept […]
Current Sense
Motor current sense circuits
Cockcroft-Walton Multiplier Votlage Multipler Circuit
Good resources: http://www.eevblog.com/2013/05/10/eevblog-469-cockcroft-walton-multiplier/
IBEX Serial Port Tester
Download our free serial port tester tool This Windows app is really handy when developing software which uses a serial UART port and was written by us as we couldn’t find the perfect tool for our needs. Select the COM port you wish to use and the port setup. Received data is displayed in in […]
IBEX File Analyser
Download our free file analyser tool Nice and simple tool for anyone needing to inspect files or modify byte values within a file. This app allows you to inspect the contents of any file byte by byte, with each value displayed in hexadecimal and ASCII in a wide window, and hexadecimal, decimal and ASCII in […]
Oscilloscope Probes
The x1 and x10 switch They call it x10, but actually its divide by 10 as the probe has a series resistor in it in x10 mode. The x1 mode switch simply bypasses this series resistor. If you want to know all the details take at look at this excellent video. Probes are normally used […]
Electrolytic Capacitors
Electrolytic Capacitors Life The life of Electrolytic capacitors drops significantly with temperature which is why they are rarely found in automotive applications.
FM Radio Modules
The Unlicensed Bands 433MHz 868MHz 915MHz Antenna Wire antenna A very good antenna to use for maximum range. Use a length of wire (or a PCB track) 1/4 wave length (e.g. 172mm for 433MHz). The optimum is to use the wire straight, but it can also be bent into a 'L 'or 'U' shape if necessary […]
Audio Beat Detect
A working audio beat detect circuit for a microcontroller using a microphone input This circuit uses a digital pot to allow the microcontoller to automatically adjust the gain of the circuit to suit the ambient audio volume, but you could replace this with a standard pot if this isn't needed. The low pass filter is […]