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Open Hardware/Modding: Art-Pi, Ugoos, and Arduino

Submitted by Roy Schestowitz on Tuesday 29th of June 2021 03:33:14 PM Filed under
Hardware
  • Art-Pi STM32H750 Cortex-M7 board supports RT-Thread, mainline Linux

    I like to browse Linux changelog to learning about new features in the kernel, but also new hardware that made it into mainline Linux, even if only preliminary or partial.

  • Ugoos AM6B Plus 2021 TV box adds WiFi 6 connectivity

    Ugoos AM6B Plus 2021 is an update to last year’s Ugoos AM6 Plus Android 9.0 TV box with Dolby Vision support through Amlogic S922X-J hexa-core processor. What has changed exactly? A WiFi 6 & Bluetooth 5.0 LE module replaces the WiFi 5 & Bluetooth 5.0 LE module used on the previous model.

    The new WiFi 6 TV box still comes with 4GB RAM, 32GB eMMC flash, Gigabit Ethernet, 4K video support through an HDMI 2.1 port, and VPU capable of 4Kp60 H.265, H.264, and VP9 video decoding.

  • DIY radar speed sign looks and works like the real thing | Arduino Blog

    Those large, white speed signs you encounter alongside the road while driving can be annoying, as inattentive drivers slam their brakes right in front of you. However, the underlying technology that powers them is quite cool, which is why John McNelly wanted to construct his own DIY version that closely reflects the actual one.

    McNelly’s design relies on an Arduino Nano and a Doppler radar module that sends out 10.525GHz radio pulses continuously and measures how much the reflected frequency has changed. Thinking back to that one high school physics class, you probably learned that as an object approaches, the reflected frequency will increase, whereas the frequency will decrease as the object gets further away. Using the Doppler effect, speed can be determined by subtracting the frequency coming from a custom pre-amplifier from the original signal.

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