This is my second installment on using PLX-DAQ as an easy method of sending data from an Arduino or any AVR related MCU to Excel. Here I will be showing you how to process the data into a graphical chart for plotting it's values...the easy way 🙂
I am confident in it's performance, even @ 8 bits, I did learn a few things though about working with CCD's, one is, thermal noise, yeah, even with NO power its still there, and on the breadboard it has little room for any air circulation underneath, so I had to compensate for this "dark current" by taking at least 5 dark frames and comparing the frame with the least amount pixel depth and then averaging the other frames together at their higher RMS #'s and subtracting that from the low pixel numbered frame and that gave me a pretty good representation of the most stable dark current values.
Source: *Data Update* 8-Bit CCD Driver Circuit (TCD1304DG)
well having a stroke several years earlier didn’t do me any favors. So, I developed a system of log books and these logs corresponded to files saved on my computer as a backup. I had to literally annotate just about every little thing I was doing, I have a short-term memory problem, but if I have a log of my previous actions I can recall it well.
Now this is the full spectral range from 0 - 1323 pixels, you will notice at the far left of the chart a line shooting straight up, this is the transmission line, which use to be the "absorption" line, by implementing this equation: (10ᶺ(-B2))*100 We can "flip" the spectral image right side up.
The Mega 2560 was chosen because it is a low cost and efficient MCU with sufficient PWM and digital int pins that fit well with the design of this project. Second, I could not drive the CCD and MTR control all with the Atmega 1284.
This is another example I wanted to share of cost effective measures I have integrated into my overall project designs (most of the time because of budget constraints,) but I have been able to produce many high end parts that would otherwise cost many hundreds of dollars had I bought them outright.
a downloadable Power point presentation, I am presenting an amended version here to illustrate the main points and history of this long running project.
This is the control console for the DAV5 V3.01 Raman spectrometer, I designed it on FreeCad v0.16. I will be having this 3d printed by Sculpteo using POM material (powdered nylon type material,) color [white] for about $107.00US, as always, all my 3d parts are manufactured by Sculpteo and I have over 236 designs uploaded … Continue reading KeyPad & LCD Display Control Console
This is the 2nd installment for the V3.01 Turret Grating Controller project for the 3D printable Raman spectrometer project. Below is a link to the video @ my YouTube channel demonstrating the newest functionality and code changes. UniPolar Stepper Motor Controller Optimized I updated the code significantly, I added " lcd.setCursor(12, 2); lcd.print(i--);" to … Continue reading UniPolar Stepper Motor/ULN2003 Controller Optimized