OK, “reverse engineering” is a bit of an exaggeration here, but that was essentially the vibe when I first hooked up my mystery LCD component to an Arduino Nano. I’m not big on either Fritzing or Eagle, so I made a sketch of the wiring...
Prostar 16x16 Panel Reverse Engineering Basics I started by looking up the data sheets on the two chips found on the board - the ST2226A and the 74HC245.The 74HC245 is a standard high speed bidirectional 8 bit buffer. Datasheet is here: http://pdf1.alldatasheet.com/datasheet-pdf/view/351465/ONSEMI/74HC245.html...
The seller provided the following picture but even after receiving the crystals in tubes, many questions remain.First, is it series or parallel resonance ?Then what type of cut is it ? https://en.wikipedia.org/wiki/Crystal_oscillator#Crystal_cuts has...
I uploaded a copy of the BASIC program that ran the system. The important part was this, which I annotated what it did. With this Information and finding the interface to the spectrometer is a 48 line DIO board I was able to figure out what lines did...
As Wikipedia is way better than me on explaining :"Contact image sensors (CIS) are image sensors used in flatbed scanners almost in direct contact with the object to be scanned. Charge-coupled devices (CCDs), often used for this application, use mirrors...
Disclaimer: I have never before done anything with LCDs directly There are three things that I've learned, that are essential to drive an LCD segment. For easier understanding just think of one segment with 2 pads or legs that you have access to. There's...