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Self Optimising Automated Arduino Nutrient Doser
Log from Hacking the way to growing food
This Blog is about making a nutrient dosing system for hydroponics that is plug and play, I didnt quite get it to the full stage of plug and play with this version. But it is almost there. Because the change of nutrient strength of our systems can be...

8-13-20:
Log from Harmonic Gear Driven Star Tracker
All parts printed and ready for a test tonight! Some parts are in need of minor changes such as; hex nut pocket hole width, bolt head pocket depth, and other minor things to make assembly easier. Photos updated as well. Once i get some photos from the...

Slow mode counter circuit
Log from ZX80 with 40 column text
There are designs on the net for this, but they all seem based on a design with a fundamental error. They asynchronously reset the 8-bit counter when it reaches 207. This means it cycles through states 0 to 206, then very briefly becomes state...

Adding Sockets for External Connections
Log from Vintage Toy Synthesiser
(Original post date: 06/03/16)Even though I ended up constructing a brand new front panel for the toy piano for this project, the rest of the enclosure of the vintage toy synth will be using the existing piano enclosure. Apart from the front...

Project Log 69: DIY Endoskeleton and Exoskeleton.¹
Log from DIY Mech/Exoskeleton suit.
Sunday, 20/08/2023, 15:02 There is no way I wil be able to finish this project log in a single day or even a single week, so I will just post this here, so if someone wonders "is this project still being actively worked on?" then, they will know...

[E1][M] 8 in 1 out hotend
Log from Coaxial8or [gd0144]
Or 9 in 1 out if the centre is used. I know it looks complicated, but it's not complicated. Modelling So, as I've read other engineers do, I wanted to see how far I could push the concept. The Palette 3 Pro had more inputs than the Palette 2 and...

[E2][P][A] Clamp face flattened, motors installed and holder attempted
Log from Coaxial8or [gd0144]
Here's a progress update of what's happened in the past 2 days. Face flattened and holes tapped The technician sounded impressed by the aluminium 3D print, but could visibly see that one side of the supposed-to-be-8mm section was shorter than the other...

SID File Structure
Log from SIDman player
YES. I know its been two years since my last blog, but this project ain't dead. I was just busy dealing with College and bagging myself a Bachelor in Electrical Engineering. Which i now hold!! So hopefully i can revive and work on this project proper...

Mini-PC host
Log from Antique PAL reading system
Most of the headache seems to be installing an OS. This is easy with a ready-to-go PC with a CD ROM or even floppy disks, but my Futro board did not have them. I decided to buy a small PC with Windows 98 already installed. There were some for £102,...

The Audio Interface
Log from An Old Fashion Acoustic Modem for the iPhone
The Audio InterfaceConnecting the microprocessor (uP) to an 8 ohm speaker and to an 8 ohm speaker used as a microphone is tricky. Tricky if you want it clean (no PWM in the out put) and simple (i.e. low part count and garden variety components).Op AmpsThe...

Genesis V0.5 Documentation
Log from FarmBot - Open-Source CNC Farming
Genesis V0.5 exhibits the following changes from Genesis V4The Tracks cable carrier is repositioned and now supported with teenuts and long M5 screws, just like on the GantryThe Z-axis motor mounting bracket has been made thicker and the holes for the...

V9958 and V9990 Video cards
Log from Y Ddraig - My 68000 Computer
Yamaha V9958 Video Display Processor The Yamaha V9958 is the successor to the V9938 and TMS9918 that were commonly used in the MSX computer line with the V9958 appearing in the MSX2+. It has the following specifications: VRAM: 128 KB + 64 KB of expanded...

Kelvin Connections / Minimum Voltage / Log Sweeps
Log from Automated LED/Laser Diode Analysis and Modeling
I made up a Kelvin-style 4-wire test lead for 5mm LEDs. In a Kelvin measurement, two wires carry the current to the D.U.T., and two are used to measure the voltage. This prevents resistance of the wires themselves from interfering with the measurement....

Project Log 17: Calculating Hydraulic Accumulators and (some) Costs.
Log from DIY Mech/Exoskeleton suit.
Friday, 13:32, 23/12/2022I will try to finish this now, I swear.Again, not mfixing grammar mistakes. Well, the Project Log 16 bug definitely deleted all the things I wrote at topics 2 and 3, it is not like I just wrote the title and didn't work on anything...

The magazine article
Log from ISA bus slave NS32016 processor board
Micro Cornucopia number 32, (October/November 1986) Public Domain 32000 By Dave Rand and George Scolaro 72 Longfellow St. Thousand Oaks CA 91360 (805) 493-1987 World’s Cheapest Unix System Contents Public Domain 32000: The Hardware How to put together...

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