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MarcDraco
(@fb-commarcdraco)
Active Member
Joined: 3 months ago
Posts: 9
2020-09-11 4:26 pm  

Just got one of these and it uses some really clever design features - an ISP header can be added to open it up for normal programming.

https://www.amazon.co.uk/dp/B086V7ZKHF/ref=cm_sw_em_r_mt_dp_IA5wFbXDTW0QA

I love how they used an LED as a light/dark sensor and the way they measure parasitic capacitance is just delightful! Details here.

https://wemakethings.net/2013/06/07/chirp-plant-watering-alarm/

 


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DroneBot Workshop
(@dronebot-workshop)
Workshop Guru Admin
Joined: 1 year ago
Posts: 652
2020-09-11 4:57 pm  

I've been meaning to pick up some of these soil sensors, I've read a bit about them and apparently the capacitive ones are far superior to the more common resistive ones.

I like this idea and have been considering doing something on these soil sensors for a while.

Disclaimer - I have whatever is the opposite of a "green thumb", plants shriek and die whenever I'm in the room with them and I believe I'm one of the few human beings who has ever killed a plastic plant!  So the presentation would have to be theoretical, as no plant would be able to withstand being watered by me! 

😋 😎 

Bill

 

P.S. Your attachment seems to be a Kindle preview of some sort, but I'm unable to read it.

"Never trust a computer you can’t throw out a window." — Steve Wozniak


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