| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| cfastie | "I decided not to drop into the rabbit hole of applying time series analysis to these data. There does appear to be some periodicity present, but I ..." | Read more » | almost 7 years ago | |||
| cfastie | "I have a hypothesis about the different results obtained with two BME280 sensors on the flying rig. A difference of 3° to 4°C is more than should b..." | Read more » | almost 7 years ago | |||
| cfastie | "The Mini Pearl Logger in the compost pile stopped logging today when the battery voltage dropped too low. Four AAA eneloops ran the logger for 13.5..." | Read more » | about 7 years ago | |||
| cfastie | "A data logger based on an Arduino microcontroller is well suited to the task of recording temperature every few seconds. The simplest Arduino combi..." | Read more » | about 7 years ago | |||
| cfastie | "I checked on the Mini Pearl logger in the compost pile today and swapped SD cards. It was still logging after 7.5 days, so that's a new record. I n..." | Read more » | about 7 years ago | |||
| cfastie | "Thanks Ed, I disabled the LEDs and deployed the Mini Pearl Logger in the compost pile again. The batteries lasted 6.5 days instead of 2.3 days. So..." | Read more » | about 7 years ago | |||
| cfastie | "That sounds like a wonderful "opportunity." It is also a revealing test case for the suitability of DIY environmental loggers to serve their maste..." | Read more » | about 7 years ago | |||
| cfastie | "Okay, now I understand the question. It's really helpful to know what data logger hardware you will have. You will have a Nano Logger Kit. You will..." | Read more » | about 7 years ago | |||
| cfastie | "Stevie, it sounds like you are looking for demonstrations of things data loggers can do. That really depends on what logger(s) you have and what se..." | Read more » | about 7 years ago | |||
| cfastie | "That's a really cool-looking wind sensor. The new one requires at least 8 volts, so a big battery pack is needed. It would be pretty fun to put tha..." | Read more » | about 7 years ago | |||
| cfastie | "Without making modifications to the components, a Nano Data Logger will last two or three days on small batteries (4 or 6 AA or AAA). I'm not sure ..." | Read more » | about 7 years ago | |||
| cfastie | "Ah, I see. Those keywords, DATE and TIME, refer to the time the sketch was compiled and are saved on the Arduino until a new sketch is loaded. Tha..." | Read more » | about 7 years ago | |||
| cfastie | "I guess the method would be deriving NDVI from inexpensive sensors (not cameras) operated by a microcontroller. There might be a better sensor (or ..." | Read more » | about 7 years ago | |||
| cfastie | "I've made a couple of those I2C hubs and they are very handy. They're fun to make too. I now put a little super glue between the header plastic bef..." | Read more » | about 7 years ago | |||
| cfastie | "That would be terrific if a ferrite bead eliminated the noise I was seeing. My impression was that the bead was protection against radio frequency ..." | Read more » | about 7 years ago | |||
| cfastie | "Thanks Ed, It's good to know there is hope for the Nano. That's an excellent thread you linked to. I might try removing the LED resistor and the r..." | Read more » | about 7 years ago | |||
| cfastie | "Xose, Thanks for pointing to those Grove I2C hubs. I had been pondering how to fork the I2C line. Here is my attempt to make an I2C hub from male h..." | Read more » | about 7 years ago | |||
| cfastie | "I figured out what I was doing wrong with the real time clock. This line in a sketch: RTC.adjust(DateTime((__DATE__), (__TIME__))); will set t..." | Read more » | about 7 years ago | |||
| cfastie | "A nice thing about DuPont jumper wires is that each wire has a separate connector. So pin pitch does not matter (if it is at least 0.1 inch, the Ar..." | Read more » | about 7 years ago | |||
| cfastie | "That's a nice little I2C hub. Maybe it would be easy to make something like that for DuPont wires from strips of male header: But somebody would..." | Read more » | about 7 years ago | |||
| cfastie | "There is a growing list of logger options and specs in a Google sheet. Please add information there if you know other stuff. " | Read more » | over 7 years ago | |||
| cfastie | "That Openlog is tiny! It combines an Arduino 328p with a microSD card, but still needs an RTC. There are clones of it available for $7.00. I have ..." | Read more » | over 7 years ago | |||
| cfastie | "Update: The u-blox NEO-7M board can be powered with either 3.3 or 5 volts. The GPS module itself is not tolerant of more than 3.6 v, but the board ..." | Read more » | over 7 years ago | |||
| cfastie | "I guess I demonstrated that the u-blox is protected someway or another from voltage over the stated 3.6v max. I was using four eneloop AAA (4 x 1.2..." | Read more » | over 7 years ago |