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A happy 2021 for our Khadas Community! Dear Khadas Community, This email is to inform you of our Spring Festival Holiday, which will start on February 6th and end on the 20th. During this time, our responses to your support requests on Khadas Forum will be slower than usual and new orders from Khadas Shop will not be sent out. You can still place new orders from Amazon.com or AliExpress.com that will ship immediately. Khadas’ New Year Holiday: 6th to 20th February Last orders from Khadas Shop: 4th February (GMT+8, 9AM to 7PM) Buy from AliExpress.com Buy from Amazon.com [ US, UK, DE, FR, IT, ES ] Buy Tone2 Pro from Audiophonics.com Video Guide for Tone2 Pro's Volume Encoder: Based on feedback from the HeadFi forum, we've created this video for how to interact with your Tone2 Pro’s rotate-push volume encoder. We hope that a video guide will demystify the functions of the volume knob, and you'll become a "PRO" user in no-time! The Tone2 Pro isn’t available on Amazon just yet, however we are in the process of shipping it out to them this week - so keep an eye out for it this month. The second batch of Tone2 Pro devices will also ship out before the 5th of February. However you can purchase it from audiophonics.com, incoming stock 10-17 February. Linux 4.9 v1.01 Update: VIM1 / VIM2 [Forum Topic]: H264/H265 hardware encoding Hardware decoding UVC hardware decoding demo Command line video player - Kplayer Fixed GE2D library VIM3 / VIM3L [Forum Topic]: H264/H265 hardware encoding Hardware decoding UVC hardware decoding demo Command line video player - Kplayer Fixed GE2D library New NPU framework Tengine New Amlogic NPU library NN SDK Android Pie V210128 Update: ROM Download: VIM3 VIM3L Changelog: Added Khadas API support [ Forum Topic ] The Khadas API allows developers to make more customized modifications and accelerate their product development process. Community Happenings: KFCI 2020 - Bonus for Top 10 Contributors at Khadas Forum HeadFi - Tone2 Pro Review Do have a great February, and we'll see you after our two week break! Warmly, Khadas Team

Our fifth installment of T2P news! Dear Khadas Community, It's a brand new year, with new resolutions! As you know our first-batch of Tone2 Pro devices has already shipped out, and we anticipate the second-batch to be ready by the early February 2021. Shipments will occur based on the order number, with lower order# being shipped first. CE, FCC, RoHS Certification: In addition, distributors will be delighted to know that Tone2 Pro has received CE, FCC and RoHS approval. This makes our latest mini desktop Hi-Fi DAC qualified for world-wide distribution! If you’re a distributor and would like to carry Tone2 Pro, please email us at hello@khadas.com. Download: Certificates Tone1 and Tone2 Pro Comparison Table: Some of you may find a comparison table between the Tone2 Pro and Tone1 useful. Distributors may download the complete table using the button below. Download: Table Tone2 Pro Firmware Upgrading Guide: Our power users can refer to this YouTube video for how to upgrade your Tone2 Pro's internal firmware using Windows, Linux or Mac OS. Everyone is fully-covered this time, but if you do experience problems, please visit https://forum.khadas.com/c/khadas-tone/26. Useful Links: Tone2 Pro FAQ Tone2 Pro User Manual Tone2 Pro Website Warmly, Khadas Team

Our fourth installment of T2P news! Updated Specifications Tone2 Pro will be shipping out to you in January 2021 (early bird devices from HiFiGo will be shipping out in the next few days), which is just a month away! However before that our team is fervently evaluating every detail of the Tone2 Pro to ensure that it best meets the needs of our Tone Community. We’ve made the following adjustments: Headphone output impedance is now better suited for lower impedance headphones. PCM bit-rate has been pushed to the maximum of 768KHz 32bit. These are the latest THD+N specs based upon the average measured value of 100 devices: Input - Auto Mode: Thanks to a suggestion from our forum user Mike, the default firmware installed in your Tone2 Pro will automatically switch input modes when it detects a song playing. By default, the input is set to “Auto”, and you can still manually select the input mode using the volume knob. When the input is set to “Auto” and a song is playing on Bluetooth (I2S), the Tone2 Pro will automatically switch from S/PDIF or USB to I2S input. Once your song on I2S stops playing, Tone2 Pro will switch back to either USB or S/PDIF. Software Volume: Our original plan was to have the pre-installed firmware include XMOS software volume support, but some users could be confused by both Software Volume and Hardware Analog Volume. Therefore the pre-installed firmware only supports Hardware Analog Volume. Special “Dual Volume” firmware (XMOS Software and Hardware Analog) will be released separately at https://dl.khadas.com/products/tone2/firmware for the users who wish to use both volume controls in their Tone2 Pro. S/PDIF Out: Tone2 Pro will support S/PDIF Out when loaded with a special version of our firmware. Turn your Tone2 Pro into a USB to S/PDIF Converter Direct digital-signal from USB to S/PDIF Out Sample Rate: S/PDIF Coaxial Out can support up to 192KHz 24bit With regards to firmware support, the pre-installed firmware does not support S/PDIF Coaxial Out; MQA decoding requires too many XU216 processor cores and the “S/PDIF Out” firmware will not be able to support MQA decoding. As with the “Dual Volume” firmware, the “S/PDIF Out” firmware will be released separately on our file server at https://dl.khadas.com/products/tone2/firmware for interested users. You will require a “Balanced RCA to Single-End RCA Adapter” to use S/PDIF Out, as Tone2 Pro uses the standard (single-end) RCA cable for S/PDIF Coaxial Input. Wishing You a Marvelous 2021: Once again, thank you everyone for your love and support during the challenging year of 2020. Khadas Team looks forward to a brighter 2021, and we hope that Tone2 Pro will bring many of you listening pleasure! For those of you who haven’t yet used your $30-off Tone2 Pro coupon, please be reminded that the coupon will expire in 2 days on the 31st of December 2020. Go to Khadas Shop to pre-order Tone2 Pro at $30-off: Visit: Khadas Shop - Tone2 Pro Warmly, Khadas Team

Our third installment of Tone2 Pro news! High Resolution Bluetooth Support There were questions from the community for high-res Bluetooth support for the Tone2 Pro. As you know, the device is clad in an aluminum shell which blocks radio frequencies. This necessitates an external Bluetooth module that plugs into the USB-C (I2S) jack. BT Module Specifications: Name: BT Magic Function: High Resolution Bluetooth Receiver Codecs: aptX HD, LDAC SoC: Qualcomm QCC5125 USB-C (I2S) Connector Layout: As to be expected with many other common audio products, our USB-C (I2S) jack’s pin-layout is non-standard. It is designed to function only with our custom high-resolution Bluetooth module. I2S Bus: Audio UART: Data PWR_EXT: Power The Bluetooth module is currently in the prototyping stage, and feedback and suggestions for improvement are welcome at forum.khadas.com. For example, you may be wondering why the module is L-shaped, and this is because due to our custom pin-layout this USB-C plug is non-reversible. Balanced RCA Plug: In a previous newsletter, we let you take a peek at the “balanced RCA jack”. This time we want to show you it’s counterpart - the “balanced RCA plug”. These photos show the size of both the plug and jack relative to a pair of headphones. As you can see, the plug has three layers...the outer layer (ground), the middle layer (negative), and the center probe (positive). The diagram shows it’s detailed structure: Imminent Price Increase: Tone2 Pro will be launching on the 16th of December, and the pre-order price will convert into the higher retail price of $199.90 in two stages. Only those who have registered before the 16th, will receive the special link to purchase at the pre-order price. Now till 2020-12-17: $169.90 2020-12-18 till 2021-01-02: $179.90 2021-01-03 till forever: $199.90 If you haven’t registered your name and email yet, to receive the pre-order price link, you may do so on the Tone2 Pro page: https://khadas.com/tone2pro. Warmly, Khadas Team

What's Inside?! You’re probably curious by now about what goes on beneath the Tone2 Pro’s shiny and sublime exterior, and we’re proud to show you! So let’s delve right into 3 notable points of the Tone2 Pro’s mechanical design. Volume Knob: The most obvious and notable addition to Tone2 Pro, is the volume knob. This is a hybrid digital-to-analog knob that is more precisely known as a rotary-push encoder. Rotation is used for adjusting the volume level up-and-down, whilst a pushing motion is used for changing the mode selection; general, volume control, next track, headphone gain, and input source. Although the rotary-push encoder has more functions, it does not feel as smooth as a conventional potentiometer used in most other audio equipment. To overcome this problem, we had to add components 8 and 10 to the design. The “8. Silicone O-Ring” prevents chafing between the volume knob and outer shell, which are both made of aircraft-grade aluminium. Whilst the “10. Viscous Damping Gel” produces a smooth and elegant rotation that you’re familiar with on a regular potentiometer. This gives the volume knob a smooth, assured, and premium feel. So you can feel in control of your music, wherever you go. Thermal Pad: The light-blue component labelled “13. Thermal Pad”, sits directly on top of the XMOS XU216 CPU. This pad transfers heat from the XMOS chip directly to the exterior aluminium shell, allowing the entire exterior of Tone2 Pro to act as a heat sink. In the original Tone Board (now known as Tone1), we discovered that if the XMOS XU208 chip reached high temperatures (when placed near a heat source), any bumps, pressure or knocks to the device would introduce hisses or blips into the audio stream - in Tone2 Pro, this issue has been resolved as the casing acts as an adequate thermal regulator. Device Thickness: With all the wonderful technology that’s been packed into the Tone2 Pro, you’ll be delighted to observe that it is actually thinner than the RCA jacks found on your Tone1. Our custom-designed balanced RCA jacks are really compact, and are ideal for integration into mobile-centric solutions. Links & References: Tone2 Pro Exploded Diagram - Download JPG Tone2 Pro Forum Thread Tone2 Pro Launch Page Tone2 Pro Balanced RCA Jacks

Upgrade your Tone1 to the v2.00 firmware for seamless compatibility with the Khadas Audio Dashboard and the new Tone Series DFU Tool. Khadas Audio Dashboard (only works with v2.00 firmware and higher) Download Link: Khadas_Tone_Driver_V4.86.0_201118.zip Tone Series DFU Tool (only works with v2.00 firmware and higher) Download Link: Khadas_Tone_DFU_Tool_V4.86.0_201118.zip Why does the Tone1 need the v2.00 firmware upgrade?: Tone1’s latest software update includes a new USB Driver and DFU Tool (v4.86), and we’ve listed the most important changes below: Seamless compatibility with the Khadas Audio Dashboard (Windows Tray Tool) Tone Series DFU Tool can upgrade both Tone1 and Tone2 devices Use both Tone1 and Tone2 simultaneously, without reinstalling drivers Unique Khadas VID (Vendor-ID, Khadas is now a registered USB-IF Member) Unique Khadas Manufacturer Name In previous driver versions, you may have noticed that the USB-VID was the XMOS-VID, and the PID was for an XMOS evaluation product. Our new firmware helps to differentiate Khadas products from XMOS by including a unique VID and PID. What is the Khadas Audio Dashboard? The Khadas Audio Dashboard is a Windows Tray Tool included with the Tone2’s USB driver installation, and allows you to change a variety of settings related to the performance of your Tone1 or Tone2 DAC. In addition, by updating your Tone1’s firmware to v2.00, you can use *both* your Tone1 and Tone2 simultaneously with Windows 7, 8.1 and 10 and the Khadas Audio Dashboard. Please note that v1.0x firmware will not work with the Khadas Audio Dashboard （nor the Tone Series DFU Tool), and you will need to follow this guide to update your Tone1’s firmware. Khadas Audio Dashboard (only works with v2.00 firmware and higher) Download Link: Khadas_Tone_Driver_V4.86.0_201118.zip How do I upgrade my Tone1’s firmware to v2.00? 1. First, download the legacy DFU tool from dl.khadas.com. 2. Unpack the .zip file and double-click on setup_eval.exe to install the legacy DFU tool. 3. Once installed, navigate to Start Menu\Thesycon\TUSBAudio Firmware Upgrade. 4. Connect your Tone1, you should see the manufacturer listed as “XMOS”, product as “Khadas Tone Control”, and a firmware version of “v1.04” or later. 5. Download the Tone1 v2.00 firmware from dl.khadas.com, and unpack it. 6. Using the legacy DFU upgrade tool, press “Browse”, then navigate to Tone1’s v2.00 firmware folder and select the firmware, next press “Open”. 7. Press “Start”. Updating your Tone1’s firmware may take a minute or two. After updating, the legacy DFU tool will no longer detect your Tone1. 8. Navigate to Control Panel\Apps & Features\, and uninstall the legacy DFU tool. 9. Install the Khadas Audio Dashboard (works for both Tone1 and 2, link: dl.khadas.com). 10. Open the Khadas Audio Dashboard, it will be in your Windows System Tray. You should see USB Audio Device: Tone1, Revision: v2.00. 11. In future, use the new Tone Series DFU Tool to upgrade your Tone1’s firmware. Tone Series DFU Tool (only works with v2.00 firmware and higher) Download Link: Khadas_Tone_DFU_Tool_V4.86.0_201118.zip What are the changes in Device Info? Manufacturer: Old: XMOS New: Khadas Product: Old: Khadas Tone Control New: Tone1 USB driver & DFU: Old: v2.xx (Common XMOS Evaluation) New: v4.86 (with licensing) When will the Tone2 be released? By now you must be wondering…”Wait a minute, isn’t this driver upgrade also about the Tone2?” - and yes, you’re correct! When you install this latest driver package for your Tone1, it will also make the transition to Tone2 seamless, as the USB driver and DFU tool works for both devices! For further enquiries, if you’re from the press, an audio product reviewer, or if you’re a distributor looking to distribute the Tone2, you may email us directly at hello@khadas.com. Thanks for reading! Khadas Team Relevant Links: Tone1 - Legacy DFU Tool Tone1 - v2.00 Firmware Tone1 and 2 - USB Driver (Khadas Audio Dashboard) Tone1 and 2 - DFU Tool (New)

Our popular VIM3 single board computer with the Amlogic A311D SoC and 5.0 TOPS NPU has been updated from V12 to V13! Find out what's changed in this blog post. Separate USB-C and VIN power supplies: When the USB-C port is connected to a computer and 12V is supplied via the VIN port, the computer's USB-hub or motherboard could become damaged. A power-rerouting IC has been added, this IC separates the USB-C and VIN power supplies preventing the 12V power supply from damaging your computer. The VIN port has a higher power-priority than the USB-C port; VIM3 will draw power from the VIN port whenever a voltage greater than 5V is supplied via VIN. New USB current limits: VIM3's input voltage range remains the same, from 5 to 20V. However we have updated the USB port current limits: USB2.0 port, max 1.3A USB3.0 port, max 1.7A. We designed VIM3 V13 with higher current support to enable more applications that require a larger power draw, i.e. thermal camera module for real-time, remote temperature sensing (for use with covid-19 detection systems). Updated Wi-Fi module: AMPAK has upgraded the internals of the AP6398S Wi-Fi module, and our latest firmwares already support both revisions (V12 and V13). For 3rd-party ROM and upstream Linux kernel developers, you may check the commits on our Khadas Github for further information. New Inductor: Inductance of the 5V DC-DC converter has been increased to a 3x3 package. This makes the maximum current 3.4A (whilst the previous current was only 2A). Solved M2X Extension Board collision issue: When removing the M2X Extension Board forcefully, an IC juxtaposed to the M2X connector was found to be liable to detachment. In V13, we have moved all ICs that were situated close to the M2x4 mounting holes someplace else on the board, so they no longer are in danger of rubbing against attached extension boards and other devices. So when will VIM3 V13 be in stock? At present, all VIM3 boards purchased from Khadas Shop, and AliExpress (remember tomorrow's 11:11 sale) are guaranteed to be V13. The new boards have actually been available since September, so most of our distributors should have received them by now as well; though you may want to call ahead to confirm. Links & References: VIM3 v13 - Schematic VIM3 v13 - Silkscreen Buy on Khadas Shop Buy on AliExpress (11:11 20%-Off Sale)

Dear Community, We hope this blog post finds you well, here are the latest updates from Khadas! 11:11 Sales Event on AliExpress: From 11 November 12:00AM till 12 November 11:59PM (Pacific Time, GMT -8), we will be having our 11:11 sales event on khadas.aliexpress.com! See below the discount margins for each category: VIM Series - 15% Off Edge Series - 20% Off Tone Board - 20% Off I've also been informed that if you "login to the AliExpress mobile app for 7 consecutive days prior to 11:11 and collect 'Gold Coins', you can unlock a $2 discount coupon, that has no minimum spend". This is a good time to pick up a VIM3, Edge-V or a Tone Board! For more information on how to take full advantage of the 11:11 sales event, please refer to the AliExpress 11:11 FAQ. Latest YouTube Video: Peltier cooler devices have in recent years become sufficiently affordable and power-efficient for the end-user to purchase and deploy at home. In this video, we demonstrate a Black Shark Smartphone Cooler reducing the temperature of an Edge-V to a mere 34C (Degrees Celsius) under full-load! Latest Blog Posts: Discover 3 methods of separating the power and data connections to your Tone Board to achieve superior signal-to-noise ratios. Tone 1 - Separating Data & Power Connections Unveil how the Tone2 Pro can squeeze balanced audio into the same form factor as our Tone1, by using a novel "Balanced RCA" jack. 3-pins were designed to fit into the space for just 2-pins! Tone 2 - Introducing Balanced RCA Khadas Shop Updates: Free Shipping has resumed to USA, UK, France, Korea, and Japan. The RCA-to-3.5mm Converter Cable has been removed from our store. We now have a UK version of the 24W USB-C Adapter. Community Happenings: Krescue now has 5 images for Edge; FreeBSD, Lakka, Android Pie, Debian & Ubuntu AkbaarTech has integrated his Tone Board into the cool-looking transparent DIY case Khadas and GNU Health join forces to deliver A.I to the field of medicine NPU Toolkit for A311D / S905D3 has been updated to v6.4.2.1 VIM3/3L Google AOSP is Coming Soon Remember that the 20% discount prices will only be displayed from 11 November 2020 12AM till 12 November 2020 11:59PM. The time zone is Pacific Time, GMT -8. See you at khadas.aliexpress.com! 4 November 2020 Khadas Team

A customized 3-pin RCA jack (pre-order now): Why balanced RCA? Pictured below, you can see the huge size differences between the balanced jacks and single-end jacks. Balanced audio usually comes with a compromise; the XLR jacks and plugs are more than double the size of regular single-end equipment: Some audio enthusiasts would mention that there exists the diminutive “3.5 Pro” and “Mini XLR-5” jacks. However, we did not favour those solutions because they are uncommon and unpopular. The “3.5 Pro” jack also has crosstalk issues. Within the Hi-Fi audio industry, both RCA and XLR-3 jacks continue to be the most popular and widely used standards. Therefore Khadas believed that we must design our Tone2 DAC with the end-user in mind, and building-in small but unpopular audio jacks just wouldn’t do. So we decided to continue on with the popular RCA standard that we would update to incorporate balanced audio. Differences between Single-End & Balanced-Audio: How did we design it? After consulting with up to seven different suppliers and manufacturers, we finally found one who was up to the challenge of both designing and manufacturing a new kind of RCA jack and plug. Depicted below is our balanced RCA jack and plug design. The structure of each signal line is shown in yellow, blue and pink: Our patented “balanced-RCA design” is also compatible with standard RCA cables, so you won’t have to buy a special RCA cable just to use the Tone2 DAC; it is backwards-compatible with existing RCA cables and will function in single-end mode. The “protective-patent” (CN211265767U) covers both the balanced RCA jack and plug, and will ensure that our design remains free and open source for the community. We did this to prevent predatory entities from co-opting and patenting this new design to corner the market. If you are curious about the technical details, such as how we solved the crosstalk issue, you may refer to the original patent document. 3rd Party Usage: RCA connector vendors, feel free to use our patents to design new balanced-RCA jacks. However, please register with Khadas via ‘hello@khadas.com’. We want to ensure that all balanced-RCA jacks are made with good design and user experience. Note: you must follow the “two holes” design. For DAC / amp vendors, same as above, however you need to “label” your product as incorporating ‘Khadas Balanced-RCA’. In addition, we would be grateful if all vendors mentioned above would add a link to khadas.com/balanced-rca in their relevant product descriptions. Applications: A smaller balanced-RCA jack enabled us to design a thinner and lighter Tone2 DAC. As you can see, it is 4.4mm thinner than a prototype aluminum case designed for Tone1, and at least 8.3mm thinner than an XLR-3 jack: This also enables Tone2 to be used in more situations, such as with smartphones: We have also designed a “Balanced-RCA Plug to XLR-3” converter cable, so you can use your Tone2 DAC with popular industry-standard XLR-3 pre-amplifiers, amplifiers and speakers: Links & References: Pre-Order: Khadas Balanced-RCA Jack (KRJ-B01-X) Reference URL: https://khadas.com/balanced-rca Protective Patent: CN211265767U

Purpose: We can achieve a superior digital to analog signal conversion by removing USB power-noise from the Tone Board. Eliminating power-noise allows us to achieve an even higher signal-to-noise ratio, thus creating an extremely pristine listening experience. Problem: This power-noise is generated by a PC or SBC’s USB hub, and is unavoidable in ordinary situations involving connections between the Tone Board and a computer. To get around this issue, users of our Tone Board community decided to supply their Tone 1 DAC with clean-power from a 5V linear power supply. To their dismay however, they discovered that when power is supplied via the Tone Board’s GPIO header instead of the USB-C port, the Tone Board automatically switches USB data-input to the header, ignoring the USB-C port. The Tone 1 DAC’s circuit diagram shows us this USB-switch in greater detail: The automatic USB input-switching frustrated our users who wished to use their 5V linear power supplies with the Tone 1 DAC, whilst still maintaining data-input from the USB-C port (PC / SBC). Aim: This blog article aims to equip you with three solutions for dealing with this problem, one of which will void your Tone Board’s warranty. Let’s begin. Solution 1 (warranty valid): Our first solution involves the destruction of two USB-cables, but not the Tone Board itself. Buy two USB-C to USB-A cables and slice them in-half along the cable length. Next re-solder them such that the data-pins and power-pins are separated and routed to each USB-A plug, respectively. The 3 ground-lines need to be connected together. This cable is also known as a Y-Splitter: Connect one USB-A plug to your 5V linear power supply, and the other USB-A plug to your PC or SBC, respectively. This is the simplest solution that does not involve potential damage to your Tone Board, and we recommend it for beginners as your warranty will remain intact. Solution 2 (warranty valid): The second solution would be to “go with the flow”. We know that when the Tone 1 DAC is powered via it’s GPIO, it will only accept USB data-input from the GPIO header. Conversely, when powered via the USB-C port, it will only accept data-input from the USB-C port. Thus, the logical thing to do would be to re-route our USB data to the GPIO header. In the diagram below, I will show you how to connect your 5V linear power supply and your USB-C cable to your Tone 1's GPIO header: Looking at the diagram above, connect your 5V linear power supply to either ground (GND), and either 5-volt pin (5V). The other two pins (USB DM, USB DP) are for the USB-data connection. (Note: the GND of the linear power and the GND of the USB should be connected together. ) If you’re using the “Generic Edition” Tone Board, soldering wires to the board directly will void your warranty. From the picture above, the USB-power-cable has two wires, black (closer to the camera), and red (further from the camera). The USB-data-cable has two wires, USB DM is the white wire (on the left), whilst USB DP is the green wire (on the right). The colors may be different for your USB cable, however usually black is ground and white is USB DM. It is a reversible mistake to plugin the data-cable in reverse, it is an irreversible mistake to plug the power cable in reverse! For solution 2, it is best to purchase the “VIM Edition” Tone Board with the female GPIO header already attached; this will allow you to use a breakaway GPIO header (sold separately), which is cheap and easily replaceable. This route will keep your warranty intact. Solution 3 (void warranty): For our more adventurous users, you may want to retain usage of the Tone 1 DAC’s USB-C port for data-input from a PC or SBC, whilst pushing linear 5V power into the GPIO header. In other words, we want to use the 20-pin GPIO for power, and the USB-C port for data. To do this, we must disable the automatic USB-switching. This can be done within 3 steps, (1) removal of the diode D2 from the upper-side, (2) removal of resistors R28 and R29 on the underside, and (3) bridging the left-pad of R29 with the right-pad of C67. You may refer to the Tone 1 schematic for details, or just follow the pictures below: Once you've performed the above 3 steps, you can then connect your Tone Board as shown in the picture below: Note that 5V power is being fed from the black and red wires connected to the 20-pin female GPIO header (on the left), whilst data is being fed from USB-C (on the right). Because of steps 1 to 3, USB-C power has been cut-off from your Tone Board. Again remember that the black wire (ground), is closer to the front of your Tone Board (picture: left), and the red wire (5V) is closer to the back (picture: right) - do NOT reverse the power polarity! Please remember that solution 3 will void your warranty. Conclusion: That's it for this blog post guys! We hope that these 3 methods will enable you to get super-clean 5V linear power into your Tone Board, or enable you to integrate it into other products / DIY projects using a combination of the GPIO header and USB-C port. Happy Tinkering! Khadas Team

Dear Community, We hope this blog post finds you well, here are the latest updates from Khadas! Krescue: Our latest version of Krescue supports downloading of OS installation images directly over Wi-Fi. This means that you will no longer need to hunt around for a LAN cable to install a new OS. Krescue now also supports the Edge and Edge-V SBCs, so our RK3399 community has finally been brought into the Krescue World! We've also made a handy guide on using Krescue to install the very small and flexible OpenWRT operating system into your VIM SBC, to turn it into a turbo-charged Wi-Fi router. You can do all sorts of stuff, like setting up a VPN tunnel, or installing ad-block to block advertisements on your LAN. Related Links: Krescue for Edge / Edge-V Krescue for VIM1,2,3,3L Krescue Forum Discussion Krescue Documentation OpenWRT Documentation 3D Models: We've updated the 3d models for the New M2X Extension and Tone Board into our server, so you may use them for your own DIY projects! Download: New M2X Extension .Step File Tone Board Case . Step File Amazon Stocks: Our products continue to remain in stock at both Amazon US and Amazon UK, so you can get them shipped to your home in one-day via Amazon Prime. Please note that our newest product, the Passive VIM Heatsink has not arrived at Amazon, and will ship from China. Customers from other regions may still order from Amazon, however due to the distance, shipping could take longer than one-day. One-Day Shipping: Amazon US Amazon UK > One-Day Shipping: Amazon DE Amazon FR Amazon IT Amazon ES VIM3 Certifications: Good news for our Khadas Distributors, VIM3 has scored two new certificates, FCC (USA) and Telec (Japan). Distributors may download the entire package from our server via the link below: Download: VIM3 Certification Package Community Happenings: Here are the latest happenings from around our community. Thanks you guys, you know it is really you who makes Khadas come alive! :) Happenings: Robert's Review of the VIM3 KKSB Metal Case You Jun's VIM3 + TS050 Screen 3D Printed Case Electr's Modular 3D Printed Case GNU Health's foray into the Khadas VIM3 Neil Birtles' VIM3 Cryptocurrency Mining Cluster Have a good one! Khadas Team

Supports Amlogic A311D (VIM3) and S905D3 (VIM3L) SoCs Thanks to the hard work from our team here at Khadas, we now have an updated version of our Amlogic NPU Toolkit for both the VIM3 (A311D) and VIM3L (S905D3). Changelog: Supports more platforms (Pytroch and Keras). Updated Tensorflow version to v1.13. This means that you can use newer functions. Added an important document called "Supported_Layer_List_191125.pdf". You can check your graph to determine if there is an unsupported neural network layer. Support for more neural network layers. You can download the toolkit from here: https://www.khadas.com/npu-toolkit-vim3 In addition, our latest newsletter dated 13th May 2020 (GMT +8) also contains the direct download links for our tool-kit. If you had previously subscribed to khadas.com or filled in the NPU form, you should have received this newsletter. Warmly, Khadas Team