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Quick Update 22/09/22
Log from UltraTower
The new tower and the pcb are being tested for 2 weeks now. Everything is working great. On the picture you can see a 3 weeks old basil plant, with 2 weeks in the tower. You can also see the fog coming out of the tower. The roots are growing and are...

Quick Update 22/09/22
Log from UltraTower 2023
The new tower and the pcb are being tested for 2 weeks now. Everything is working great. On the picture you can see a 3 weeks old basil plant, with 2 weeks in the tower. You can also see the fog coming out of the tower. The roots are growing and are...

8-20-14 Drawings
Log from Wi-Fi Controlled Open Scoreboard
I updated the System overview diagram in the project description, so It would look cleaner than the hand drawn one. I also added this file to the GitHub. I used the following to create the diagram, http://sourceforge.net/projects/dia-installer/?source=typ_redirect...

Temperature sensors
Log from UltraTower
Temperature is important in soilless cultivation. Articles agree on an ideal growing temperature between 18°C and 26°C. A too cold temperature will slow down growth but increase the dissolved oxygen in the water. While too hot temperature will...

Temperature sensors
Log from UltraTower 2023
Temperature is important in soilless cultivation. Articles agree on an ideal growing temperature between 18°C and 26°C. A too cold temperature will slow down growth but increase the dissolved oxygen in the water. While too hot temperature will...

Salinity Measurement
Log from Vinduino, a wine grower's water saving project
SummarySalinity, or excess salt in the soil profile, is often called the "silent killer", because of the devastating effect salinity can have on irrigated agriculture. With increasing agricultural irrigation efficiency, there is a risk of salt build-up...

A View Into the Soul of the Sol-20
Log from Sol-20 Reproduction
From the beginning of my work on the Sol-20 reproduction I wondered what kind of display I would use with it. Of course a small CRT based TV or monitor would be ideal. To that end I put out feelers with my maker mates and even had someone at a local...

Project Log #20: Big redesign as the laser cut DigiNerdyGurdy
Log from The Digi-Gurdy and Digi[Nerdy]Gurdy
Total redesign, main objective being to offer more features for same build cost. Main changes listed below.1) New PCB which places key stems in more correct positions when viewed from rear of keybox. This means key stems are no longer in centre...

Kria GTH Findings and MIPI CSI-2 Working
Log from Aper-Oculus
Crazy cool finding for the Kria SOM: if you save the settings from simulation of another GTH capable Zynq MPSOC (Like say the ZCU104 or ZCU106), you can load the GTH on the Kria SOM with these settings via dynamic reconfiguration, and have it working...

New fertilizer, pH meter disassembly, LED drivers
Log from GrowInBox
Hi!I have a lot of school work to do this week, but I decided that some thing just need to happen today or as soon as possible. So I bought a new fertilizer.The old one - plant food - TNT Complex from hesi has a NPK of 323 which is ok for the vegetative...

[E1][M] New Strain Wave Reducer / Harmonic Drive
Log from T^2 Tiles [gd0095]
Right so it's been... checks notes... 36 hours since I wrote the log saying I don't know how to progress further. I've now essentially finished modelling the entire thing, and it should be smaller, better, faster and stronger than the previous...

Board NEDONAND-6
Log from NEDONAND homebrew computer
NEDONAND-6 is 8 multiplexers 2:1 with common control (straight select and inverted select):Board already ordered through OSHPark:Pins description:1.1) GND - ground 1.2) O0 - output of multiplexer 0 1.3) O1 - output of multiplexer 1 1.4) O2 - output of...

[E1][M] Updated CAD issues
Log from Tetrinsic [gd0041]
[08:00]As expected from yesterday's measurements, the built in ribbon cable has no hope of ever reaching the PCB. The bigger issue though is that there's not enough space for an M2 bolt head. I'm unable to understand what these holes are for then. Or...

[E1][T] SuspenseSizeable and Suspense^2
Log from SecSavr Suspense [gd0105]
You may be wondering why it sounds like I'm once again considering increasing this SecSavr Suspense lineup when I haven't even got a working prototype, but it shouldn't be that much of a design alteration since the idea is just to put a Y axis stage...

[E1][C] Improved mouse smoothness
Log from AirBerries and SpaceExplorer
This suprisingly took even more effort than the ButtonRing and I got a lot more help from BingChat this time around. Essentially, I wanted to replace the simple method with one that waited until it was sure both the real and imaginary components...

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