| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| david_uwi | " spectrometer16f.gcb.txt " | Read more » | over 3 years ago | |||
| solaris2020 | "Thank you for example of the device circuit diagram. It based on microprocessor. Without example of firmware the circuit diagram meant almost noth..." | Read more » | over 3 years ago | |||
| david_uwi | " SPEC2018-2-.bmp This is the circuit diagram " | Read more » | almost 5 years ago | |||
| waida | " click iprice for more info. https://ipricethailand.com/ " | Read more » | over 5 years ago | |||
| david_uwi | "Finally got something working using the ic-Haus LFL1402 diode array. https://www.ichaus.de/iC-LFL1402 I normally use 3 V (2xAA bateries) so I had t..." | Read more » | about 6 years ago | |||
| david_uwi | "Update: The diode array has gone from obsolete to unobtainable in a matter of a few months. I am testing an ILI1402 (made by ic Haus) which is supp..." | Read more » | almost 7 years ago | |||
| joeray | "Hi @david_uw, I am really impressed with your work :-) Very nice. I would like to build your spectrometer. Would you share your codes and assembli..." | Read more » | about 7 years ago | |||
| tekno | "is this something that a Raspberry or Arduino could be use to substitute for the processor - I ask due to the following that both processors have. ..." | Read more » | about 8 years ago | |||
| abdul | "@david_uwi That's fine, some of our tools require more technical understanding; the wheestat also requires programming as well as soldering (to my ..." | Read more » | about 8 years ago | |||
| david_uwi | "Yes I have no problem with that. It is however more involved than other projects I see on this site. It needs a lot of fine soldering (maybe a PCB..." | Read more » | about 8 years ago | |||
| liz | "Hi @david_uwi -- i'd like to help you format your notes into instructions that someone else could follow, would this be of interest? " | Read more » | about 8 years ago | |||
| david_uwi | "The display uses SPI communication (it has an internal ILI9341 driver). The PIC16F1788 has a hardware SPI module. These type of TFT displays can be..." | Read more » | about 8 years ago | |||
| warren | "Hi, this looks really cool! Are you interested in posting build instructions so others can follow your steps? I'm impressed at the cost -- what's ..." | Read more » | about 8 years ago | |||
| david_uwi | "Here's a real spectrum which I stored on the SD card. It is of potassium permanganate. Because there is a very strong absorbance 500-580 nm and the..." | Read more » | about 8 years ago | |||
| david_uwi | "It uses a TSL1402 diode array (I got mine from digikey) it has 256 pixels. A holgraphic diffraction grating (1000 lines) plastic lenses x2 (3 cm fo..." | Read more » | about 8 years ago | |||
| stef | "Very nice, but more detail is needed. stef " | Read more » | about 8 years ago |