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Site Updates Tech

Server Upgraded to Raspberry Pi 3

Since December last year, both bendayo.com and junkocooper.com had been running on my Raspberry Pi 2 Model B server. Recently the Raspberry Pi Foundation released their newest model, the Raspberry Pi 3 Model B, and I decided to grab one as a replacement.

The main differences are:

  • A 1.2GHz 64-bit quad-core ARMv8 CPU
  • 802.11n Wireless LAN
  • Bluetooth 4.1
  • Bluetooth Low Energy (BLE)

Of all the new features, I’m solely interested in the increased clock speed of the CPU. 300Mhz is a big jump – 25% faster than the Pi 2. Hopefully it will make the server more snappy when serving files, processing scripts, and performing daily backups.

The server is hard-wired into the network, so I’m looking forward to an update of raspi-config, the Pi configuration utility, that would allow Pi 3 users to disable the onboard wifi/bluetooth radios. I have no use for them and would prefer to reduce the RF noise near to my home studio.

I’ve noticed it runs a little hotter than the Pi 2, and I have it contained in a metal case. I’ll update the site if there are any cooling issues to be concerned about.

Categories
Arduino Projects Hobby Tech

Arduino Project: Hermes

Speed! Cunning! Moving freely between the worlds of the mortal and divine!

Picture of the Greek messenger Hermes
Hermes – A speedy dude.

Okay, not the kind of language that leaps to mind when we’re talking about Arduino and homemade robots, but I had to choose a cool name for my Arduino-powered vehicle. The Greek gods had awesome names, and of all the gods that I know of, Hermes was the most…movey.

Not long after playing around with the parts included in the Osooyoo UNO kit I began to ponder how I could make something that could roam the house and pester my wife and daughter, so naturally motors and wheels became the order of the day.

MOTORS & SHIELDS

The Arduino team have produced something called a Motor Shield. A “shield” is an add-on board that sits squarely above an Arduino board and passes through all of the digital and analog headers while providing additional functionality. By adding the Motor Shield to my UNO, I was able to easily attach the two 3V motors included with a Tamiya Double Gearbox which can be controlled via software.

Left: The Arduino Motor Shield. Right: The Tamiya Double Gearbox
Left: The Arduino Motor Shield. Right: The Tamiya Double Gearbox
Categories
Arduino Projects Hobby Tech

Let’s play around with Arduino!

Ardu-what?!

It’s Xmas time, and what better time to hole up inside and hack around with a fun “toy” like the Arduino? Tinkering is the name of the game, and this miniscule board affords budding electronics enthusiasts an inexpensive entry into the work of physical computing.