http://elger.org/wiki/ 2026-10-02T17:45:28+02:00 http://elger.org/wiki/ http://elger.org/wiki/lib/tpl/prsnl10/images/favicon.ico text/html 2016-11-16T13:06:54+02:00 http://elger.org/wiki/projects/spectrumanaliser/step1_hardware?rev=1479298014&do=diff Spectrumanaliser Hardware There are four hardware components in my spectrumanaliser project; * Power-supply * Opamp * Arduino (clone) * Display Here is a short description of why they are needed and how they are connected. Power-supply Usually I would not mention this separately but there is one important thing to know about powering this project. text/html 2016-11-16T13:06:54+02:00 http://elger.org/wiki/projects/spectrumanaliser/step2_software?rev=1479298014&do=diff Spectrumanaliser Software The software for my spectrumanaliser project is not finished, and it may never be finished because there is always some feature or improvement to make. However, I do have a working piece of example code which basically functions. Here it is: #include <fix_fft.h> #include <ht1632c.h> char im[128], data[128], raw[128], maxval[64]; char x=64, ylim=16; int i=0, val; static long tt=0; ht1632c ledMatrix = ht1632c(&PORTB, 10, 9, 11, 8, GEOM_32x16, 2); void setup() { …