3210 Results for "%EC%B2%AD%EC%A3%BC%EC%98%A4%ED%94%BC%EC%9D%B4%EB%B2%A4%ED%8A%B8%E2%87%8Foptime4%E3%80%82com%EC%B2%AD%EC%A3%BC%EC%98%A4%ED%94%BC %EC%B2%AD%EC%A3%BC%EB%A7%88%EC%82%AC%EC%A7%80 %E2%87%8F %EC%B2%AD%EC%A3%BC%EC%98%A4%ED%94%BC%E1%99%92 %EC%B2%AD%EC%A3%BC%EC%98%A4%ED%94%BC%ED%94%84%EB%A1%9C%ED%95%84%E1%99%92 %EC%B2%AD%EC%A3%BC%ED%9C%B4%EA%B2%8C%ED%85%94 %EC%B2%AD%EC%A3%BC%ED%82%A4%EC%8A%A4%EB%B0%A9 %ED%83%80%EC%9E%84"

20230214a -- Memory, cont.
Log from ROM Disassembly - AlphaSmart Pro
Operating under the current assumption that RAM is 32 KiB banked at address 0000-7fff, with the first 256 bytes masked off by special function registers and internal SRAM, some other code sections of interest were found. E.g.:ED00 loc_ED00: ED00...

The Keyboard
Log from Anatomy of a Philips VideoWRITER
Before I start this log on the keyboard I should mention that I'm in the process of putting all of my writings and software on the Video Writer on a small website. The following is an almost direct copy of what will be the article about the keyboard......

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...

Munin plugin gathering Helios Ventilation Temps
Project by Robin
This ugly but working code uses modpoll from inside a munin plugin to gather Helios Ventilation System Temperatures over LAN
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Arduino or Wemos Code
Instructions from WiFi Signal Strength Scanner Monitor or Checker
In the arduino code set your WiFi credentials char wifissid[] = "ENTER YOUR WiFi SSID HERE"; char wifipass[] = "ENTER YOUR WiFi PASSWORD HERE"; Normally, the signal strength is displayed in dBm. But for a non techie person, the signal strength in terms...

September 28th 2023: I can't make the linear actuator move precisely
Log from Automatic Moving Cricket Wicket
It was dumb to use a DC motor for this project. I should have just ponied up the resources for a high speed stepper. My plan was to attach a rotary encoder to the DC motor to accurately measure the number of rotations. This is not easy....First, I tried...

Motor Controller Software and Circuit for Dyson Vacuum Cleaner Motors
Hacker page by Hasan
Dyson V6 Setup and Running System Dyson handheld vacuum cleaners utilize high RPM brushless DC motors. Specifications indicate that some models can reach as high as 125000 RPM. I’ve disassembled DC56(V2), V6, and V10 models. Each has a brushless single-phase...

Solar Water Heating Controller
Details from Solar Water Heating Controller
An unexpected cold shower made it clear that I need a new controller for our solar warm water heating system ("split architecture" which is typical for installation in middle and northern Europe - thanks @Saabman for helping me understand that I had...

Some notes
Instructions from Hydroponics Sensor
The ESP-32 board pins operate in 3.3v levels while the Gravity pH and EC sensors operate in 5V. I inserted a simple voltage divider to shift 5v to 3.3v levels on the signal pins.

Comm protocol between camera and drone controller
Log from Reverse Engineering a ProMark VR Toy Drone
Initially I thought the data stream from the camera board to the quadcopter controller was PPM. This signal is only active when the app is running and the on-screen controls are brought up. The quadcopter has to be power-cycled in order to be controlled...

Tablet Init
Log from WiiChuck
We have some bytes from the tablet. It's all pretty standard stuff with one exception.// unenc init a4 w f0 55 a4 w fb 00 Read ID Bytes a4 w fa a5 r ff 00 a4 20 00 13 // Enter enc mode a4 w f0 aa // write 16 byte key a4 w 40 e0 7d e0 7d e0 7d a4 w 46...

Eight X Beef
Log from BeefyDuino
In the latest news on the BeefyDuino frontier, my friend Ryan who is the founder of elequa, the company I am helping to start, assembled eight BeefyDuino prototypes (with a little help from his friends including me). He did this because he was going...

The actual informations
Log from Extension card for TDS3000 scopes
Detecting and identifying a card As stated in an earlier log, the card insertion is detected by grounding the pin *CD. But this is not enough to make the scope believe he have a know card inside him. You need to indicate him what type of card was inserted....

Combat AI
Details from Combat AI
How It Works Brief Summary I started with a well-known disassembly of Combat (by Harry Dodgson, later improved by Nick Bensema and Roger Williams). To this, I added a K-nearest neighbor algorithm that uses examples from a training dataset to make a...

Digital Pot Shots
Log from SpiroBoard Aeroponics pH / EC / Motor Controller
As you can see below, I am breadboarding the new peak detector changes before committing to a new PC board. One of the changes involves using a MAX5387 digital potentiometer to control the square wave amplitude and EC amplifier gain. The...

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