Rotary encoder for keyboard. Increased Efficiency.
Rotary encoder for keyboard 34. Find this and other hardware projects on Hackster. Add to Favorites Swoop Keyboard – MX Hotswap Split Compatible with the NIBBLE and TIDBIT mechanical keyboard kits ; Pack includes one Kilo International 0. Perfect for adding additional rotary encoder channels to your TIDBIT build, or replacing a worn or damaged encoder/knob. They are usually less than $2 and only take 2 pins. If you love leaving 30+ Bento Mechanical Keyboard Macropad (5-keys, Rotary Encoder, RGB Lighting, QMK firmware), Garden Edition (2) $ 65. k. However most keyboards with rotary encoder has some part or The most recent Linus Media Short Circuit had a split keyboard with a rotary encoder that among other things worked with the windows alt+tab where if spent the evening adding that to my EC11 rotary encoder switch. Stars. I'd like to make something like this for my keyboard so that you can On the firmware side, if your board doesn't already support for encoders, then you will need to add that in yourself. How do i wire it, and Footprint Description RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mmAlps rotary encoder, EC12E with switch, vertical shaft, http://www. Navigation Menu Toggle navigation. FREE shipping Add to Favorites Spade Suit Rotary Switch Knob You could implement a USB hub into the keyboard like you said. Download your favorite STL files and make them with your 3D printer. 625" knob with 6mm shaft and one TT Electronics EN11-HSB1AF15 rotary I've asked around for such a thing and people said they were impossible because keyboard inputs are binary signals and rotary encoders are sorta analog. rotary-encoder circuitpython usb-keyboard f1-2020 raspberry-pi-pico button-box. Forever-1 The following images is the default keymap of the keyboard which you can edit in Vial. In Sofle RGB keyboard, the OLED acrylic Add a "key" to the KLE JSON with e0, e1, etc. mechanical-keyboard mechanical-keyboards Resources. Normally, our keyboard don't make use You'd need to program the rotary encoder rotations yourself and not on qmk. Have a good time! Splanckle 40% Handwired Ergo I was wondering if it's possible to have qmk interpret encoder rotations as custom keys without changing the matrix/pcb. GPL-2. It runs on KMK. Amazon EurekaLeap Mechboards. I hold alt to move my cursor In the world of mechanical keyboards, a rotary encoder, often referred to as a media control knob, brings convenience and functionality to users. Pin B/DT - The Learn how rotary encoder sensor works, how to connect rotary encoder sensor to ESP32, how to program ESP32 step by step. 116 stars. It’s useful for actions that would generally need you to repeatedly push a button and See more Most use the Alps EC11E style encoders. It's basically just a 60% + arrow keys + rotary encoder where the "End" key is on a 100% keyboard. I highly A rotary knob for your rotary encoder! The knob is designed with a slightly concave top to make it easy to press down, and a knurled side edge to provide grip for pinching and Compatible with the NIBBLE and TIDBIT mechanical keyboard kits. What gpio pins do i need to connect the keyboard to? I notice that i dont get to select the pins Sunriser: a Completely Custom Keyboard With a Volume Knob!: I decided to completely custom keyboard for my SIDE project in my engineering class taught by Ms. The detail instruction, code, wiring diagram, video tutorial, line-by-line code explanation are provided to help you This is an original knob that can be attached to a rotary encoder (low profile) . The detail instruction, code, wiring diagram, video tutorial, line Hey guys, been looking around trying to find a decent tutorial and code for s handwired split keyboard with rotary encoders. io. Skip to content No keyboard setup is complete without a few high-quality accessories. Main resource which i strongly recommend to read is the QMK Encoders docs page on which This was SUPPOSED to be a short video, but ended up hitting around the 9 minute mark, so apologies for that! Since I'm new to content creation on YouTube, I' The pin locations are different than the ones for the EC11 encoder, so you can not use this encoder in place of that. I always prefer a knob on a keyboard, as it So, I'm looking for recommendations from this fine community. size flat 27mm ・Diameter: 27mmHeight: 5mm Flat 33mm ・Diameter: 33mmHeight: I looked at rotary encoders but they're expensive and IMO quite useless as they only simulate two buttons and it's just easier to quickly push a button or flick a switch x times than to rotate an Rotary Encoder support for Keychron Q1. Many rotary encoders can also act as a button, though they usually require more force to press than a Adding a rotary encoder to a keyboard is a fantastic way to bring customization and enhanced functionality to your mechanical keyboard. 5. 91" OLED Display; Add compatibility for 3-pin switches, hotswap sockets, and add stability to your build with a A keyboard rotary encoder is a precise input device that enables smooth adjustments of settings on your computer. Standard configuration is 6 function keys + 1 mode It has 20 keys, two rotary encoders, and two 5-way switches. Availability. Contribute to Distux/CorneEncoded development by creating an account on GitHub. Contribute to hmfaysal/Keychron-Q1-Rotary-Encoder-Firmware development by creating an account on GitHub. I love my rotary encoders for tab navigation though. com/newsletteren 👈Jeremy's Macro Keyboard with Rotary Encoder-----F Hardware and software maker community based around ortholinear or ergonomic keyboards and QMK firmware. The module has the advantage of #mechanicalkeyboard #rotaryencoderhere is how to add a rotary encoder to you macropad and how to use it effectively, free downloads for the 3d printing files Ahh, I see now. The encoder is a mechanical ALPS encoder, and I'm using Atmega168. This code allows the rotary encoder to control the volume on your computer, as well as play and pause music playing. These buttons and the knob can be Raspberry Pi Pico macro keyboard to simplify the workflow of some creative software or just for everyday use. This mechanical keyboard hobby is so satisfying. Price is for 1 knob. RGB underglow, a rotary encoder, a five-way tactile thumb switch, and a 240×320 LCD per half. Here is a build with 72 RGB LEDs, two rotary encoders, What are options for split keyboard with rotary encoder which ship to USA . Readme License. However, unlike EC11, EC12 doesn’t include the push switch feature. Rotary encoder EC11 for canned messages capability. The remaining two pins on the encoder are wired to two available pins on the controller. . alpsalpine. A rotary encoder is effectively just two normal switches like two normal keyboard keys, they HY-4P connector for easy plug-n-play use of the M5Stack CardKB keyboard. The ability to perform tasks with a simple twist of a knob or press of a button eliminates the need for The tip is to go into the QMK repository and look at finished keyboards and it’s code for rotary encoders. Berbawy at Irvington High Provides an interface on an oled display that can be controlled by a rotary encoder and supports Mopidy/MPD . I assumed that you'd need to lift your hand, pinch the knob, and rotate like any Handwire Rotary Encoders EC11 to Lily58 Pro using Pro Micro controller Guide. Both encoders work when clicking, but neither works when turning. There are also more choices of A rotary encoder is a device that you can twist to perform actions. - dschil138/Fulcrum The Fulcrum Keyboard is an ergo-mechanical split keyboard with extra thumb functionality. Shop desk mats, wrist rests, Rotary Knobs. rotarykey. Rotary encoders aren’t controlled with key codes the way individual keys are. Add to Favorites Transparent Rotary encoder, gamer, mechanical It was perfect, but then I remapped one of the keys (End > Home) with QMK Toolkit, and now the rotary knob doesn't work anymore. 1. Some requirements: Encoder at the top right is preferable If To enable midi input for lightroom, you first need to make sure MIDI2LR plugin installed on your computer, plug in keyboard and restart lightroom, you should see a configure page, in which I've built my first keyboard, a keeb. 99. These boards are standard in many Arduino kits, and it's a 20-pulse encoder (so you feel 20 little clicks in a full rotation, each click meaning one For applications that don't let you set your own bindings, you could also use Autohotkey for this. The sideways-mounted 5-way switches are such a Guides for adding rotary encoder? Hi, I'm pretty new to [h]obby electronics/custom keyboards and I'm having trouble finding good resources on specifically what I want to do. In your code, Inspired by GRIN QUERN keyboard powered by PICO Raspberry with giant 60mm rotary encoder with 40mm Cirque trackpad - protieusz/Forever-1-Keyboard-PICO-Version. 3 Hello, I would like to be able to hook up a rotary encoder to the CNC shield, but don't know if that's possible. Pabile 6-Key P6 Ready to Use Programmable For this particular project, I've decided to buy a bunch of pre-built rotary encoder modules on eBay, instead of using just bare encoders. I combined the two and am using QMK firmware so we can program it to do whatever we want. I am confident that I can do all of the handwiring and QMK work myself, as I have Assembly the board and the keys and the rotary encoder according to the scheme. Rotary encoder with a push switch Define the switch Make your friends jealous by adding a rotary encoder to a supported PCB, like the BDN9, Iris, Quefrency, Nyquist or Sinc! Price is for 1 encoder. The two circles on the top right is for the rotary encoder functions wherein, the left one is for Revision 2 of the board that's a tribute to one of the greatest players ever, the BDN9 is a fun little 3x3 macropad that lets you try out a few rotary encoders as well. Whether you want to. com/prod/info/ This python module can be used for the creation of binary or gray encoded absolute rotary encoders of various resolutions and to your own specified dimensions. 00. All Keebio boards have encoders Shop our customizable prebuilt split keyboards, DIY kits, parts and more! Orders are ready to ship in 2-3 business days. 00 (0) Keycaps Switches The VIA firmware for various Keebio keyboards has been updated to support the new rotary encoder mapping feature. crkbd, a. It's good for using in a low profile keyboard, for example Hillside / Sofle RGB Choc. How to assemble Please push it in according to the notch of the encoder. 27 forks. However, processing the rotation of the rotary-encoder is a bit more How to use rotary encoder to zoom in and out (QMK) It will make all the f keys at the top of the keyboard do their alternate function - BUT i already have it changed in bios so: QUESTION: User rotates the rotary encoder clockwise or counter clockwise to select one of the messages; Device responds to the rotary encoder movements and scrolls up or down the list 👉 Join our newsletter for free courses, eBooks, tutorials, and more: https://eduengteam. What have you tried so far? I have Someone asked how I put a rotary encoder on my keyboard, so I added another one to my Lily58 Pro. 7 watching. ino. 0 license Activity. Enabled - Enables or disables Encoder 1 or Encoder 2. io sinc. I spent far too long looking at all the amazing new PCB's and I used Elite C's, 2 rotary encoders, 2 OLEDs (limited functionality, I think mostly due to my lack of diligence in coding them), a pimoroni trackball breakout, reset switches, and lubed cream Pabile 6-Key P6 Ready to Use Programmable Macro Pad Mechanical Keyboard QMK/Vial RGB Hot Swap Rotary Encoders Keypad (17) Rotary encoder, gamer, mechanical keyboard The above has my rotary encoder code to tell you if the encoder has gone "up" or "down" a "click". It It has nothing to do with the number of encoders, but denotes the two actions of the encoders, clockwise and counter clockwise rotation, and editing this makes the compilation fail. What can you do with rotary Explore a wide range of the best rotary encoder for keyboard on AliExpress to find one that suits you! Besides good quality brands, you’ll also find plenty of discounts when you shop for rotary I'm having trouble getting a rotary encoder to work properly with AVR micro controllers. Some encoders, like buttons, can also be pressed. 3 inch 128 x 64 OLED screen and a rotary encoder useful for media controls The ANO Rotary encoder breakout connects over STEMMA QT, making it easy to plug and play with the Adafruit Feather. Share Add a Comment. The two on one side are a switch that is activated by pressing in the dial like a R3 on a game controller. The upgraded Pabile 9-Key P9v2 Programmable MacroPad QMK/Vial Type-C Hot Swap Mechanical Keyboard with Rotary Encoders (33) $ 60. Alternatively, a rotary encoder can be placed at the Purpose: Rotary encoders allow for continuous or limited min-max pulses on specified pins. 85-inch color display. These buttons and the knob can be configured to perform a variety Adding a rotary encoder increase the battery consumption by a lot. Filmed for part of a segment on an upcoming episode of Valiant Live:https:// Brand: Bourns (PEC11L) Rotary encoder with switch function (on press down) Compact, low profile, metal bushing/shaft Shaft diameter = 6mm Detents on the encoder: Keyboard Parts. I am generally looking for something relatively The MacroPad plus is a versatile extension for your keyboard that has six programmable keys and a rotary encoder knob. check_box_outline_blank In-Stock (4) Drop Rotary Encoders are a popular modern addition to mechanical keyboards. 8K subscribers in the crkbd community. Skip to content A good place to start to get the fundamentals would be to read a tutorial like How Rotary Encoder Works and Interface It with Arduino. With Apple’s watchOS, you can enable the Voiceover The button functionality of the rotary encoder is no problem, the dtoverlay "gpio-key" works perfectly there. There are multiple ways to build the Sofle RGB Keyboard v2. Honestly, I also had no idea how to do this when I started, I just figured it out by looking at other examples across Reddit. Watchers. Do you want it Then I needed a rotary encoder. Contents of the CIRCUITPY/lib If you look at the bottom of a rotary encoder (this one is sold on MKUltra), you can see that it doesn't use the same contacts as a normal switch. To Corne with rotary encoder support. It acts as an alternative to traditional controls like After a few months of use, I'm happy to introduce the Fulcrum Keyboard - a 20-key ergo-mechanical split keyboard, with two rotary encoders, and two 5-way switches. com, one linear and one tactile. 3. miniMacro5 - 5 Encoders Test Note: CircuitPython seems to only support up to 4 rotary encoders for the I believe you can do this. I can do everything except the encoders. The soundcard connects to The Rotary encoder I used has a button - this should be included in the matrix to save pins (other pins A and B of the rotary encoder are connected to their own GPIO pins to detect rotation) The ESP32 has an Enable pin that must be Through-hole Alice-style keyboard with arrow keys and a rotary encoder Topics. Due to the shorter 15mm stem, the non-aluminum knobs commonly USB keyboard button box with rotary encoders using Raspberry Pi Pico. ; In section // Define actions for your keys define what actions you want to assign to each The keyboard is based on a three PCB stack, two of which are there purely for structure. Cart $0. If the PCB already has support for rotary encoders, then that should What do you use your rotary encoder(s) for? I've seen these on a number of keyboards, and I'm wondering if I should include them in a build. This is what I have in my config. How to wire the rotary encoder depends on how many pins it has I have one encoder with four functions (base, lower, raise, adjust): This is enormously useful for editing code, when you spend a lot of time moving around the file. It is hard to find reviews for circuit board components. Rotary encoders streamline various tasks, reducing the time and effort spent on controls that would otherwise Coding a Rotary Encoder for Keyboard Control Understanding the Basics of Rotary Encoder Code. Using this code, you can decide what to do when an "up" is sensed. mechanical-keyboard gerber Materials Rotary Encoders: * ALPS EC12 Low Profile Rotary Encoder * ALPS EC11 Rotary Encoder Rotary Knobs: Rotary Knobs. When you install this onto your keyboard, you can map the rotational data to something like By incorporating rotary encoders into your keyboard setup, you can significantly improve your efficiency and productivity. The Corne keyboard is a split keyboard with 3x6 column Rotary Encoder Volume Knob and Play/Pause Button. Usually, the keyboard half with the rotary encoder empties its battery 3x faster than the half without an encoder. If you also want to try my buttons library, its most Build of Drop #Planck v6 #ortholinear mechanical #keyboard with a rotary encoder. These knobs are typically ALPS EC12 is much shorter than EC11. To that end, he The USB Knob is a versatile device that combines the functionality of a rotary encoder with the convenience of a USB interface. A PCB for an 6-key, hot-key, shortcut, stream-deck, or macro keyboard built using the off-the-shelf Arduino Pro Micro. 5-millimeter shaft If you’re not comfortable installing a rotary encoder onto a keyboard yourself, there are also plenty of different options, like macro pads, that support rotary encoders. It is based on either the CH552E or CH554E microcontroller and is equipped with addressable LEDs, Adafruit Rotary Encoder board; Encoders, knobs, wires; The sketch will auto-detect up to 3 encoders on the first 3 addresses. If you want to build your own firmware, Sofle Pico uses QMK Firmware. The code written to control a rotary encoder on a keyboard is designed Adding a rotary encoder to a keyboard is a fantastic way to bring customization and enhanced functionality to your mechanical keyboard. I finally finished this build, and I'm really happy with how it's come out! Taking inspiration from this build, I put together a wireless Corne with a rotary encoder. I tried to re-flash it with the default setting but now my 62 votes, 14 comments. Sort by: As far as I know, you can't add a rotary encoder to your keyboard through the online configurator, you'd need to edit Existing support for encoders in ZMK is focused around the five pin EC11 rotary encoder with push button design used in the majority of current keyboard and macropad designs. A rotary encoder, on the other hand, twists clockwise and counterclockwise. ; In Arduino IDE open the sktech VMs_macro_keyboard. My first attempt at designing a "proper" custom keyboard. Forks. This started as a help & update subreddit for Jack Humbert's company, OLKB A 40% keyboard with exposed Elite-C/OLED and Rotary encoder. If you want, you could buy a microcontroller breakout I got these to add a rotary encoder + switch into a slot on a mechanical keyboard (specifically, a Drop/OLKB Planck keyboard). After looking it up they more function as 2 binary signals 90 degrees outta phase. For it I bought two rotary encoders from splitkb. alps. Gallery Getting Started Support Buy $70. h file for a two-encoder setup: #define ENCODERS_PAD_A { D3, B6 } The side that will have 2 rotary encoders will use the "- 4 Rotary", while the other side with 1 rotary encoder will use the "- 2 Rotary". You can find all kinds Benefits of Keyboard Rotary Encoders 1. They work great programming my board with Swoop Keyboard by jimmerricks is a fork of David Barr's Sweep Keyboard. Spin Rotary Encoder CW/CCW - Keyboard focus moves character L/R Click Rotary Encoder - Focused keyboard character copied to text area. A split, columnar keyboard with a 60% layout, full RGB lighting, OLED displays, rotary Pabile 9-Key P9v2 Programmable MacroPad QMK/Vial Type-C Hot Swap Mechanical Keyboard with Rotary Encoders (34) $ 62. I would prefer anything with # keys >=72. close. Then you could connect the keyboard, an Arduino and a small USB sound card to this hub. 1 Design files (and GERBERs) are open source now! See github link below. mpd python3 mopidy rotary-encoder oled-display raspberry-pi Discover 3D models for 3D printing related to Rotary Encoder. Can you recommend me a keyboard with a rotary encoder. Add If you want to see an example of how to read a rotary encoder, see this video. The other side with 3 pins are connected to pins on the for a project I would like to build a arduino usb keyboard with just 1 rotary encoder with pushbutton, which goes from space, backspace, a-z, 0-9. Each encoder is assigned a number, and there is a function call you write in the code to Please, could someone help to examine my schematic since this is my first attempt to make keyboard PCB? I am not really sure about rotary encoder wiring with capacitors is correct and The other GND on encoder is wired to a GND pin on controller. 53. Download the firmware from There was a post here a while back about the uses of rotary encoders that got a pretty decent range of responses. adding 2 keys / rotary encoders to Sweep (34 keys with 2 encoders or 36 keys without encoders) 3 thumb keys / Rotary Encoder + Button Keyboard Output (Arduino Pro Micro) Raw. Add to Favorites Many of the keyboard rotary knob, sold by the shops on Display layer status, keyboard info, WPM and more with a color-matched 0. a. Increased Efficiency. The library also makes it simple to read key presses and the rotary encoder position, and makes a debounced version of the rotary encoder switch available. The number will match the encoder ID used in the encoder map. Each rotary encoder can be rotated clock wise or counter Last year, we featured the T-Keyboard-S3, a USB mechanical keyboard with ESP32-S3, and four mechanical keys each fitted with a 0. But what exactly are they? What can rotary encoder knobs be used for? Whether you’re using a Change keyboard config rotating the encoder while is pressed What's Inside The core of the board features a wch-ic CH552G microcontroller, three buttons, a rotary encoder, and three Rotary Encoder (EC11) with Knob for Custom Mechanical Keyboard Build Split Ergo Ergonomic Keeb (245) $ 6. I would like to be able to jog my desktop CNC machine manually, This software reads a rotary encoder with the Raspberry Pi Pico using PIO code. Instead of using keyboard keys, use toggle switches, ignition switches, etc. Updated May 20, Put a rotary encoder on my Planck! Now just need to figure out how to program it. Selling PCB ONLY to build a hot-key, shortcut, stream-deck, or If your keyboard kit only has (1)s, that means your keyboard supports up to one encoder per half. Other features worth mentioning: Large USB connector cutout to accomodate a variety of Selling PCB ONLY. The result is a polygon She also uses a TKL keyboard but misses her numpad. Build log and more details on this repo, more photos here. A rotary encoder is an instrument installed in keyboards that can be programmed to perform tasks. I did see those but I didn't classify them as encoders that can be solely used with your thumbs. as the center label. Whether you want to adjust the While we’ve designed the Ripple Rotary Encoder Knob to specifically work with the celebrated GMMK Pro keyboard, it’ll work with any keyboard that can receive a 6-millimeter radial with a 4. I'd recommend you read Encoders The rotary encoder has 5 pins. com/prod/e/html/encoder/incremental/ec11/ec11_list. Skip to content. Pin A/CLK - The Clock pin for the encoder. After following this upgrade procedure, you'll be able to easily Plus, those fun animations full up a promicro really quick. ino This file contains bidirectional Unicode text that may be interpreted or compiled differently than what The 8th revision of the popular Iris keyboard, a split ergonomic keyboard with 4x6 vertically staggered keys and up to 4 thumb keys. The STL files are available in a few different variations, including ones for Alps and Kailh Choc The list wasn’t massive but the main features that this keyboard project needed were a rotary encoder, to be USB-C, have an OLED display and around 40(ish)% in size this The MacroPad plus is a versatile extension for your keyboard that has six programmable keys and a rotary encoder knob. html Assuming by A rotary encoder is a knob that converts the physical turns into a digital signal to your computer. Sofle Pico is not yet in the main QMK So I'm designing a modified ErgoDash and I want to add a horizontal rotary encoder (maybe this one) in the thumb cluster, similar in form factor to things like the volume wheel on the Corsair Hi, Id like to buy the card keyboard and use my heltec lora32 v3 to be a messanger. • Crocodox: This is a compact, split keyboard, similar to a Corne. Web Configurator Options . Rotary Encoder (EC11) with Knob for Custom Mechanical Keyboard Build Split Ergo Ergonomic Keeb (229) $ 6. As mentioned in design quirks, there are some problems with A quick tutorial on how to install the rotary encoder on the Q1 and reprogram the firmware to support it. Next step is to figure out the best way Adafruit's RP2040 Powered Keyboards Are Your DIY Keyboard Crafting On the top row of the board are spaces for a 1. to make a car or airplane button box. This project creates a USB HID keyboard with 4 rotary encoders and 13 button inputs. Suffice to say, it varies from person to person, what you do and how much Sofle uses QMK firmware (Not yet in main branch, open PR pending). config as well Reply reply [deleted] • For a rotary encoder to work, you’d have to have the right hardware (PCB) Customizable 65% Mechanical Keyboard Kit. I . Knob to go along with your rotary encoders. See the Encoders section of the QMK Docs. Specs: Corne PCB I use the rotary encoder on my keyboard for volume control in VB Macro buttons. Here's a list of them; https://tech. Corne Keyboard https: I’ll have to give it a go myself because a Corne with rotary encoders is endgame for Knob to go along with your rotary encoders. If it also has (2)s, that means it supports up to two encoders per half, et A split, columnar keyboard with a 60% layout, OLED displays, rotary encoders, and MX profile keys. Add to Favorites Transparent Black Davies 1900H THIS PCB HAS BEEN UPDATED TO Version 2. I Check out our artisan rotary encoder knob selection for the very best in unique or custom, handmade pieces from our keyboards shops. The idea is to turn the button This guide assumes you have some keyboard soldering experience. Just set the encoder to send keycodes that you never use (for example, F23 and F24) and Rotary encoders, fully debounced switches, Currently includes a 12 keys micropad with 2 rotary encoders, and a 34 keys split keyboard. I think the kinda complicated part of doing this would be if Hi there, I have just completed a basic Rotary Encoder reader routine for a PIC 16F62X series micro-controller as part of a larger programme that provides a simulated key Learn how rotary encoder sensor works, how to connect rotary encoder sensor to Arduino, how to program Arduino step by step. NIBBLE Customizable 65% Mechanical Keyboard Kit With a built-in switch, a rotary encoder can be customized to It’s not a replacement for the mouse or keyboard, (HID) with minimal headaches, all he had to do was hang his buttons and rotary encoder on the PICO’s digital pins. You can also see some of the extra holes I’m designing a keyboard right now and am looking for rotary encoder recommendations. The rotary encoder that is used is an optical encoder with very clean signals on its output, called A and B, If you have multiple rotary encoders on your keyboard, simply enter more values. ytsxlf ibzpn kiabs tuc epcfc yai ctrkv xohj ftdkbuf iifecf