Another New Linux Development Board and Open Hardware
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Orbbec's 3D cam dev kit runs Linux on Amlogic A311D
Orbbec has launched a Linux development board for its 3D depth cameras, such as the circa-2015 Astra Pro, which is incorporated on its Linux-based Persee camera computer. The Zora P1 features a high-end, hexa-core Amlogic A311D plus HDMI, GbE with optional PoE, WiFi/BT, MIPI-DSI and -CSI, and 5x USB ports.
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SeaMonkey 2.53.5.1 compiled on Raspberry Pi4
Compiling SeaMonkey, now that is a challenge. I tried yesterday, and the 'nss' module failed. It was configured to use the internal 'nss' and 'nspr' and not the system libraries, as the latter were too old. So last night I did a complete recompile in OE, with later versions of 'nspr' and 'nss', and today compiled SM to use these system libraries ...and success.
I do come across posts on forums, people asking how to compile SM on an ARM board, so will post some notes here...
I have compiled with EasyOS 64-bit (armv8-a+crc) running on a Raspberry Pi 4, with 8GB RAM. The source is on a 500GB SSD, plugged in via USB3, and using the standard official Raspberry Pi 3A power supply. The SSD has a 32GB swap partition.
EasyOS for the Pi4 is currently under development and not yet released, but expected to be very soon.
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EasyOS using VC4 graphics acceleration on Pi4
Commenting-out that line in 'config.txt' causes Xorg to load the 'fbdev' (frame buffer) driver. This gave quite snappy desktop rendering, however it will fall down when rendering games and video.
The solution was to recompile 'mesa' with the 'vc4_dri.so' driver, which sits at /usr/lib/dri. I mentioned in a previous post that I had recompiled everything in OE for a generic aarch64 target CPU, armv8-a+crc. This compiled mesa without VC4 driver.
However, I had previously compiled in OE for a rpi4 target, and that has the driver. So, have created a PET just with that driver. -
Arduino Blog » Detect problems with your Arduino projects
The Arduino team created a tool to check Arduino projects for common problems. Arduino Lint runs over 175 checks on your sketches, libraries, and boards platforms which cover specification compliance, Library Manager submission requirements, and best practices.
[...]
Arduino Lint would be a great addition to your continuous integration system. Running the tool after each change to the project can allow you to identify any problems that were introduced.
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today's howtos
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Zora P1 Amlogic A311D Development Board
Zora P1 Amlogic A311D Development Board interfaces with Orbbec 3D Cameras