Salamander
It’s for hobby!
But I did work with cell cultures (with lab-grade incubators) in the past, and I am currently working with a company developing sensors for industrial systems. So, the concept of PID I learned at work recently. And at work I also write some firmware for interfacing sensors with micro-controllers.
Awesome work! Upgraded. Thank you!! 😄
I think that the videos on ginger and turmeric from “Self Suficient Me” have valuable information: https://www.youtube.com/watch?v=PE32IxRIgow https://www.youtube.com/watch?v=bFHQir72ams
I have experience growing small plants of ginger, turmeric, and galangal in pots - if I bury the store-bought pieces in soil mix I get young plants with no problem. Unfortunately my luck ends there, because I don’t have the space nor access to the weather to grow large healthy plants, and eventually they do stall when winter comes.
I have built incubators for several different projects (seedlings, mushrooms, tempeh, fermentation, etc…). Learning how to control a heat distribution in a safe and efficient manner has been a bit of a journey for me. Just recently I begun experimenting with positive temperature coefficient (PTC) heaters and I am very happy with them as I feel much safer running these than ceramic/IR heat lamps and regular heating elements.
At the moment I am heating an incubator for petri dishes using a 12V/100W PTC heater with a fan hooked up to an stc-3008 thermostat. The PTC undergoes on/off cycles that keep the temperature near 26 C, but, even when setting the upper and lower control limits quite tight, the temperature still oscillates up to +/- 2 C during these cycles.
I have been studying how to implement a proportional–integral–derivative (PID) controller to avoid the on/off cycles. My next experiment is to try to control the power of the PTC with a Mean Well HLG-120H-12AB LED-driver in constant-voltage mode and the ESP32 as the PID controller.
Aaah, I got the fly butts first 😆
But lots of treats after that :D Thanks!!!
Here are some that come to my mind: Epazote, ramsons, nopal, chaya, sour orange, turmeric, many gingers, galangal, Sichuan pepper, cinnamon, cardamom, mamey, black sapote, guaya (Melicoccus bijugatus), jícama
Hahahahaha
Possibly if/when China uses weapons against Taiwan or some other country in Asia according to Theodore Ts’o in that thread (here)
There are multiple sanctions programs, and at least in the US, for the sanctions program which Huawei is in, there is an exception for conversations and patches that take place in a public mailing list, such as LKML. As a result, as the ext4 maintainer, I am comfortable taking patches from engineers employed by Huawei, and I consider them valued members of the ext4 development community.
However, note that China is not actively attacking Taiwai militarily, while there are Russian missiles and drones, some of which may controlled by embedded Linux systems, that are being used against Ukraine even as we speak. Hence, it should not be surprising that the rules imposed by the US Government might be different for Huawei compared to other sanctioned entities that are directly or indirectly controlled by the Russian Military-Industrial complex.
There are also other sanctions regimes imposed by Japan, European Countries, etc., which might be more or less strict. So in general, if you are not sure what you need to do as an US, European, Japanese, etc. citizen who might be subject to civil or criminal penalties ---- talk to a lawyer.
The bottom line is that it is a false equivalence to claim that sanctions involving China and Russia are the same. They very much aren’t; one country is engaging in an active shooting war (or if you prefer, “special military operation”), and the other is not.
Of course, if China were to militarily attack Taiwan or some other country in Asia, circumstances might change at some point in the future. Hopefully Chinese leaders will pursue a path of wisdom and those consequences won’t come to pass. Ultimately, though, that’s not up to any of us on this mail thread.
Cheers,
- Ted
