Tag: raspberry pi 3 B plus

• #Raspberry Pi 4B: How much faster is the new CPU?

  Raspberry Pi | 4 min | 27746

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  raspbian

  performance

  raspberry pi 3 B plus

  jupyter

  raspberry pi 4b

  n-queens problem

  benchmark

  buster

  On July 4th, I ordered a Raspberry Pi 4B from Reichelt. On July 17th, I received the board, but it was broken, and a month later, finally I received a new board that seems to work OK :).

  The new Raspberry Pi 4B has a lot of upgrades and one of the most important ones is the RAM: You can choose between three models (1GB, 2GB and 4GB). But, another main change is the CPU and the RAM bus: they changed from a Cortex-A53 64-bit (3B+/3A+) to a Cortex-A72 64-bit, both ARMv8, and from LPDDR2 SDRAM...

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• #Zigbee: Reading Xiaomi Sensors with a Raspberry Pi (no Xiaomi gateway needed!)

  Home Automation, Product Reviews, Raspberry Pi | 2 min | 35964

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  docker

  home automation

  raspberry pi 3 B plus

  product review

  home assistant

  xiaomi sensors

  xiaomi gateway

  aqara

  hass.io

  I've been very busy the last weeks. I moved to a new apartment and I was living between moving boxes. Four days ago, I managed to put my desk together and now I have some time (not a lot) to write a new article.

  Last month I've received from GearBest two Aqara sensors:

  • Aqara Cube - internal motion sensors (gyro + accelerometers)
  • Aqara humidity, temperature and air pressure

  These sensors use Zigbee and I connected them to a Raspberry Pi running Raspbian OS and a dockerized version o...

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• #Rapberry Pi: Preempt-RT Kernel Performance on Rasbperry PI 3 Model B+

  Real Time Systems | 3 min | 18957

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  preempt-rt

  standard

  kernel

  patching

  raspberry pi 3 B plus

  The Raspberry Pi 3 Model B+ (Fig. 1) is now on sale and I bought one two weeks ago. The main modifications are the followings:

  • A 1.4GHz 64-bit quad-core ARM Cortex-A53 CPU
  • Dual-band 802.11ac wireless LAN and Bluetooth 4.2
  • Faster Ethernet (Gigabit Ethernet over USB 2.0)
  • Power-over-Ethernet support (with separate PoE HAT)
  • Improved PXE network and USB mass-storage booting
  • Improved thermal management

  Fig. 1: Raspberry Pi 3 Model B+

  The Raspberry Pi uses now the LAN2515 chip from Microchip instead of the LAN9514 for Ethernet and the USB Ports.

  If you are looking for some Benchmarkin...

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