Comments

Author Comment Last activity Moderation
bhickman "Hi wmacfarl, Typically you would want to have some idea of the turbidity of whatever unknown sample you want to measure. If your measuring a fresh..." | Read more » 12 months ago
bhickman "Hi @gretchengehrke. I kinda let this project fall though the cracks. I did have the sensor working pretty well, the only issue was interference fro..." | Read more » about 3 years ago
bhickman "Hi Patrick. I'm currently out in the field as part of a research team and won't be back to my lab for a few weeks. Once I get back I can look at so..." | Read more » over 3 years ago
bhickman "Hi tekno. I would definitely go with the 3D printed version if thats available for you. The 3D printed version makes alignment much easier. " | Read more » almost 4 years ago
bhickman "Hi ddnoob. I have not quantified the resolution, but by my estimate, the wavelength resolution is around 1nm when everything is optimized. The inte..." | Read more » almost 4 years ago
bhickman "I updated the link. Thanks. " | Read more » almost 4 years ago
bhickman "Hi ddoob. If you follow the link on DigiKey (http://www.digikey.com/product-detail/en/TSL1406R/TSL1406-R-ND/3095064) to the data sheet, on page 17 ..." | Read more » about 4 years ago
bhickman "Hi dddnoob. The code on GitHub was only compatible with Processing 2, which I believe is the cause of the above error. I uploaded a folder to GitHu..." | Read more » about 4 years ago
bhickman "Hello pdhixenbaugh, I like how you have colored the schematic, makes things much clearer. As for your questions, I'll try and answer them. Firstly..." | Read more » about 4 years ago
bhickman "Hi ggallant. Your design files look great! I'm going to have to look into openscad. As far as a server, I don't think publiclab has one. I think mo..." | Read more » over 4 years ago
bhickman "Hi rfdave. To my knowledge the only requirements is that the electrodes be inert. I chose graphite because I had some laying around and its cheap. ..." | Read more » over 4 years ago
bhickman "Hi ggallant. I'm definitely interested in what you have put together. I'll check out openscad to see what you have. As for the pipe and air bubble..." | Read more » over 4 years ago
bhickman "Hi donblair, thanks. There is still a bit of development to be done, especially for extended deployments, but I think the design shows promise. I ..." | Read more » over 4 years ago
bhickman "Hi ggallant. Sounds interesting. I'm trying to picture your design, but I'm not sure if I have it right. Can you post a picture? I definitely thin..." | Read more » over 4 years ago
bhickman "Hi ggallant. I'm using Texas Instrument's Tiva microcontroller which has a couple pins that allow you to tap into the bus power (5V at 1A). For sho..." | Read more » over 4 years ago
bhickman "Hi gretchengehrke, thanks. To answer you questions: (1) I'm using this LED and this photodarling as the detector. The LED has a maximum output at 8..." | Read more » over 4 years ago
bhickman "Hi ggallant. To answer your questions: 1. Yes, the unit is intended for submerged operation. So far I have only had it submerged in beakers in the ..." | Read more » over 4 years ago
bhickman "Hi abaker. Currently I'm using a third order polynomial to calibrate the spectrometer. I simply take a spectrum of a fluorescent light and save the..." | Read more » over 5 years ago
bhickman "Hi abaker, I tried it on a Mac and was not able to get it to work, I'll have to look into this. For now, to use the csv file you can write out the ..." | Read more » over 5 years ago
bhickman "Hi abaker, I forgot about that wavelength file. The wavelengths in the file will be incorrect and a calibration will need to be done to get the cor..." | Read more » over 5 years ago
bhickman "Hi abaker, I'm a bit confused as to what you mean by which to run first, but I'll try and help. First of all, for the TSL1406R CCD wiring, I wired ..." | Read more » over 5 years ago
bhickman "Hi abaker. Sorry for the delay, I was out in the field doing work for my real job... For you earlier question, so far I have been printing in PLA, ..." | Read more » over 5 years ago
bhickman "Hi Wbugar. The units of the stl files are inches. I can convert them to metric if needed, but most components/parts around here primarily denoted i..." | Read more » over 5 years ago
bhickman "Hi Wbugar. I'm planning on writing a more coherent note on how to put this thing together and a parts list once I get a lid printed for the new des..." | Read more » over 5 years ago