Just hook this Alarm Phone Dialer up to something you would like to monitor, for example, a high water alarm, low temperature alarm, back window, garage door, etc. When the system is activated it will call a number of programmed numbers to let you know the alarm has been activated. This would be great to …
With the B&W Zeppelin Air being such a popular iPod docking station as well as a fantastic AirPlay compatible device we thought it would be a good idea to write a ‘how to’ on setting up your new Zeppelin Air. As of September 2012 newer machines are installed with a slightly newer firmware version. The main reason …
Every time I sit down to document one of my projects, I try to remember the occasions in the past when looking at the finished web page, I might say ‘Well, I won’t do that again!’, because despite how many drafts I’ve gone through, there is always some aspect of the presentation that fails to measure up …
MIDI Chord Button Keyboard Using PIC18f4620 part 1 Read More »
How chords are formed Before discussing the processor board and software, it is worth mentioning how the chords are composed. I have provided the table below which shows the installed chords together with the intervals/notes they are constructed from, and examples of each in the key of C major. Since the source-code is provided, and …
MIDI Chord Button Keyboard Using PIC18F4620 part 2 Read More »
Connections The following table documents the connecting leads and molex pin-header numbers tying the various interfaces together. Header Pin no. Signal/Function Direction Header Pin no. Signal/Function Chord Controller-SV1 1 RD7 ——> Matrix Decoder-SV4 1 Chord Sel. C Chord Controller-SV1 2 RD6 ——> Matrix Decoder-SV4 2 Chord Sel. B Chord Controller-SV1 3 RD5 ——> Matrix Decoder-SV4 …
MIDI Chord Button Keyboard Using PIC18F4620 part 3 Read More »
The PIC has a white arrow in the transistor and the clock is a little to the right. Pull-down resistor Tact switches are in line with the lower back. PIC fast 200ns port in the meantime and have pressed… Electronics Projects, Simple Electronic Piano with PIC16F84A “microchip projects, microcontroller projects, pic16f84 projects, simple circuit projects, The PIC has …
INTRODUCTION We constructed a triangular arrangement of microphones to localize the direction an arbitrary sound is coming from. By recording input from the three microphones, we can cross-correlate the recordings to identify the time delay between the audio recordings. Since the physical placement of the three microphones are known, the direction of the sound can …
