This idea was born when i saw this project years ago: https://hackaday.io/project/170961-resistor-color-code-clock-v10 NOTE: There is a bug showing resistor values under 100 since gold nor silver can be displayed. AND the multiplier seems to be...
1 Intro The Enecsys Gateway is a Zigbee gateway allowing communications between the Enecsys microinverters and their monitoring backend. The Enecsys company is unfortunately defunct since 2015 and their DNS domains have been taken over by a UK enecsys...
The Grow Cube / Grow Box is an indoor hydroponic setup which can be used to plant and grow seedlings, micro-greens, lettuce, and other plants up to a height of about 75 cm (around 3 ft).Ideally, the system will monitor temperature and relative humidity...
Communication and modules architecture High level Software architecture Main controller This module manages mirrors of all connected devices on the control network ( RS485 ) and delivers user interface via TFT and webserver to users. Control modules...
For lack of a better place, the Instructions project section gives a detailed description of the system. Last update September 25, 2018. If you would like more information on the custom Raspberry PI board that controls the system, there is another...
The main differences between the E6400 and the T400 are the SuperIO, the EC, and the use of DDR2 RAM instead of DDR3. The SuperIO is supported by coreboot, so it should just be a matter of including it in one of the files, but I may have to write new...
3-11-2024 See these two 2011 Liliputing and TechCrunch articles, which were partly the inspiration for this project: https://liliputing.com/pixel-qi-suggests-low-power-tablets-could-be-powered-by-1w-solar-panels/(6-3-11) https://techcrunch.com/2011/06/04/first-solar-powered-laptop/ (6-4-11)...
Video or it didn't happen! Interactive and animated chart for the Leaderboard Awards. The data used in this chart was collected by Yann Guidon / YGDES over a period of more than 40 days.Play with the data for yourself. Yes, the webpage is lousy for the...
One Bit CPUs There are a couple of one bit CPUs on the Internet. I have start with the MC14500B chip. This chip was used many years ago for PLCs but the documentation is still available: http://tinymicros.com/mediawiki/images/e/ec/MC14500B_Handbook.pdf...
Hardware ESP-32: The ESP32 makes it easy to use the Arduino IDE and the Arduino Wire Language for IoT applications. This ESP32 IoT Module combines Wi-Fi, Bluetooth, and Bluetooth BLE for a variety of diverse applications. This module comes fully-equipped...
The Bankswitch cartridge implements the three most common schemes named F8, F6 and F4. The working of the bankswitches is depicted on the table below. Address -Address Lines-- Bankswitch/Bank selected 1 11 8K 16K 32K 2 1098 7654 3210 F8 F6 F4 $1FF0 0001...
The “Crivit Sports” wrist watch HRM (Heart Rate Monitor)This is a wrist watch that can also display the heart rate BPM (Beats Per Minute)..The complete specs and the user manual can be found at http://www.lidl-service.com/cps/rde/xchg/SID-648946E8-5F850FDD/lsp/hs.xsl/product.html?id=47039228.The...
The 16C2552 doesn't need a lot of glue on the RC2014 side. A single 74HCT138 is used to decode the I/O space and allow the card to be placed at 80/90/A0/B0/etc with the second port 8 bytes above. The standard configuration used on non Z80 ports is to...
From OpenCores PDP-8 page: Features In this FPGA implementation, the PDP-8 CPU can be configured to emulate the instruction execution of a PDP-8 (Straight-8), PDP-8/S, PDP-8/S, PDP-8/I, PDP-8/L, PDP-8/E/F/M, PDP-8/A, HD-6100, or a HD-6120. The...
In another page, I described my adventures converting an Ubuntu DEB package to an RPM package. This provided me with a native toolchain for my Linux workstation. I wished though that there was a solution that would allow far more Linux users, no matter...