Test AI Performance in Android with AI Benchmark App

AI Benchmark App

Many new phones now come with Silicon-on-Chips (SoC) featuring a Neural Processing Unit (NPU) or similar IP block(s) aiming to accelerate A.I workloads such as facial recognition or object detection. Some silicon vendors will report performance in terms of TOPS (Trillion of Operation per Seconds) with for example 2.25 TOPS for the latest Mediatek Helio P90 processor, or 4.20 TOPS for Hisilicon Kirin 980 SoC. However, those numbers can be deceptive, and nothing beats actual tests. However, last time I checked Android benchmarks such as Antutu do not include tests specific to artificial intelligence just yet. Luckily there’s already an app for that called AI-Benchmark which you’ll find on Google Play. The benchmark includes 9 tasks: Object Recognition / Classification with MobileNet – V2 Object Recognition / Classification with Inception – V3 Face Recognition with Inception ResNet V1 Image Deblurring with SRCNN 9-5-5 neural network Image Super-Resolution with VGG – 19 neural network Image Super-Resolution with SRGAN neural network(CPU only) …

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Radxa Rock Pi 4 Review – Part 1: A First Look at RockPi 4B Performance Set

Rock Pi 4 Review

Hey, Karl here with another RK3399 board. This one is by Radxa and is called the Rock Pi 4. There are 2 main variants to this board and I was shipped the B version “performance set” which includes a power supply, heatsink, and acrylic case. Also shipped was 16gb eMMC 5.1 module, eMMC flashing board, and USB-TTL debug cable. It looks like the difference is the B version has AC wifi and GbE LAN with PoE support with a hat. The A version only has GbE. Rock Pi 4B Performance Set Unboxing Some of the more notable specs eMMC module support M.2 NVME SSD support (SATA not supported) HDMI 2.0 [email protected] MIPI DSI 2 lanes via FPC connector 3.5mm audio jack MIPI CSI 2 lanes via FPC connector, support up to 8MP camera 802.11 ac wifi Bluetooth 5.0 40-pin expansion header :  1 x UART 2x SPI bus 2x I2C bus 1x PCM/I2S1 1x SPDIF 1 x PWM 1x ADC …

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Sony Spresense Board Review with NuttX based Spresense SDK

Sony Spresence Kit Assembled

Sony Spresense Arduino compatible board with audio and global navigation sateliite systems (GNSS) support and its extension board launched in Japan this summer. The company has now expanded markets, and is offering the boards in the United States and Europe as well. They also tasked an agency to send samples to various reviewers, and I got selected to receive one as well. I’ll start the review by checking out the hardware, shortly discuss software development options, and report my experience with Spresense SDK. Sony Spresense Unboxing I received two packages… … one the main board, and the other for the extension board. The main board package only comes with CXD5602PWBMAIN1 board and an information sheet. The top of the board includes a reset button, four user LEDs, a power LED, a boot recovery button, the camera interface, Sony CXD5247 power management and audio analog interface chip (Black on the photo below, but in reality it’s a reflective surface), Sony CXD5602 hexa …

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Khadas Edge Review – Part 3: Android 7.0 Preview

Khadas Edge Android 7.0

Hey Karl here with a look at a preview of Android on the Khadas edge. Jean-luc has done 2 parts already. The first one looking at the hardware side, and a second looking at Ubuntu. A third img is available that for LibreELEC. The initial release was very barebones, and the 2nd version is much more polished with the Play Store installed now and overall feels snappier. Khadas is supposed to be sending an Edge over to Super Celeron, and I hope they follow through. DHL DHL really messed up my board. Here are some pics. I will only be testing with Ethernet because the WiFi antenna got damaged badly and even bent the heatsink. I think the board is slightly damaged as well. I can only flash using the buttons on the board and not the carrier board. Everything else seems OK. Due to the damage I am using a heatsink that I had. I took some temp readings …

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ClockworkPi Gameshell Review – Part 1: Unboxing & Assembly Guide

ClockworkPi Gameshell Review

ClockworkPi Gameshell is a portable retro gaming console kit designed to be hackable being powered by Allwinner R16 processor to run Linux, as well as an Arduino compatible Atmel AVR MCU. It’s partially open source hardware with PDF schematics, and firmware source code available on Github. The device launched last year on Kickstarter, raised close to $300,000, and started shipping to backers last summer. The company has now sent me a sample for review, so let’s have a look. The first part of the review will be more than just an unboxing, since the game console is meant to be assembled by the end user, and I’ll report my experience doing so. ClockworkPi Gameshell Unboxing The kit comes in a fairly large package that reads “GameShell – Redefine Portable Game Console” and lists the main specifications with quad core Cortex A7 processor, WiFi and Bluetooth connectivity, 1GB RAM, 16GB micro SD storage with OS,  micro HDMI output, and a 1,200 …

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Khadas Captain / Edge SBC Review – Part 2: Ubuntu 18.04

Khadas Edge Ubuntu 18.04

I received Khadas Edge Developer Package with Khadas Edge RK3399 module, Khadas Captain carrier board, and several accessories a few weeks ago, and after checking the hardware in the first part of the review, I’ve now taken the time to review software support, specially Ubuntu 18.04 on the board. Khadas Edge / Captain Firmware There are currently four main choices of firmware for Khadas Edge / Khadas Captain: Ubuntu 18.04 OS with LXDE desktop environment @ https://dl.khadas.com/Firmware/Edge/Ubuntu/ Android ROM @ https://dl.khadas.com/Firmware/Edge/Android/ with Android Nougat being a proper release, Android Oreo (available now) a temporary version that will not be supported, and Android P that will be released and supported by Rockchip later on in 2019 Armbian RK3399 for Khadas Edge that looks to be work-in-progress right now LibreELEC for playing videos on the platform I decided to focus on Ubuntu 18.04 for this review, and Karl who has he own sample will review the stable Android Nougat firmware that has …

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$6 C-SKY Linux Board Reviewed, Benchmarked

C-SKY Board

The price of single board computers and development boards has really gone down in recent years, and it’s easy to find a low cost Arm based board for most project. But C-SKY Linux development board is quite different since it’s based on the little known C-SKY architecture, and the price in China ($6) is really competitive for a media capable board. If you live outside of China, the board is now sold for about $18 including shipping, and MickMake decided to buy one to have a closer look and review the board. As we covered during the announced the board is powered by NationalChip GX66058 C-SKY 32-bit processor clocked at up to 574 MHz and integrating  64MB DDR2 on-chip. Getting the board on-hand allowed Mick to get more details about the other chips included in the board namely: STMicro STM32F103 to handle all the JTAG control through a micro USB port (JTAG) CH340G USB to serial bridge to access the …

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Geeetech A20M Review – A Dual Extruder, Color Mixing 3D Printer

Geeetech A20M 3D Printer Samples

Hey Karl here with a 3D printer review. I know it has been a while for a printer review and grateful for Gearbest sending the review unit. They shipped me the Geeetech A20M a single nozzle, mixing, dual extruder 3D printer. Man that was a mouth full. It is a follow up to the A10M which is similar but a smaller build volume. The A20M clocks in with a 255x255x255mm build volume. My last foray with a multi material printer was a Tevo Tarantula and it was mildly successful. I didn’t realize that this was a mixing extruder and the implications. I have done some very cool looking prints due to the fact that it’s a mixing extruder. QC Issues I always come to expect some QC issues with these low cost printers. But I have to say that this printer has had the most. Let me list with fixes Z stepper motor bent…..replace z stepper motor Fan for part …

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