Raspberry Pi

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Car Computer Raspberry Pi 3 Upgrade

Raspberry Pi 3 upgrade for the Car Computer Recently I wrote about my car computer project based on the Raspberry Pi 2. The performance while acceptable in most situations, would drop and get noticeably sluggish during resource intensive activities such as processing large play queues or music directories. The free space around the [...]

By |March 7th, 2016|Hardware, Linux|9 Comments

Building a Raspberry Pi Car Computer

6 months ago I bought an 80 series Toyota Land Cruiser and the time since has been doing the car up in preparation for a trip around Australia. Since its release the 80 Series Land Cruiser has earned itself a reputation as a dependable and an almost unbeatable machine off road. But given the advances [...]

By |February 7th, 2016|Linux, web development|19 Comments

Raspberry Pi 2 Bitcoin Node

Not long ago I set up a Bitcoin node on a Debian Wheezy VPS to teach myself about Bitcoin and the blockchain in general. It was a great learning experience but the memory requirements of the Bitcoin software kept causing my VPS instance to run out of memory so the kernel would constantly be killing off the bitcoind process. A growing blockchain also meant the node was getting close to the limit of its available disk space as well. Simply increasing the amount of disk space available to the VPS instance with the plans offered by the hosting provider was going to be prohibitive for the purpose so I decided to assess other solutions. Luckily I had a spare Raspberry Pi 2 that I had yet to do anything with at home. So I made the decision to try and install a Bitcoin node on that instead to save some money. The main expense with using the Raspberry Pi was going to be finding enough storage for the block chain. I didn’t have an SD card that was big enough at home to accommodate the operating system image and the block chain. So I opted to buy a cheap external USB flash drive to keep it separate from the root filesystem. After formatting with ext4 the flash drive has 57Gb of available space, at the time of writing the blockchain takes up 40Gb of space so that leaves a further 17Gb for future growth. Continue reading “Raspberry Pi 2 Bitcoin Node” »

By |May 26th, 2015|Hardware, Linux, Open Source|0 Comments

Bad Day For Electronics

My new GERTBoard an extension board for the Raspberry Pi GPIO interface arrived after a long wait this week. I brushed off my soldering iron all ready to put it to together only to find it had some surface mount components that I would need some more tools than just my fingers to attach things to the board. So the assembly of the GERTBoard is on hold for the time being, but I couldn’t help noticing the way the kit was packaged. Element 14 was it really necessary to pack every component individually? Continue reading “Bad Day For Electronics” »

By |November 1st, 2012|Hardware|0 Comments

Raspberry Pi Overclocking

Like just like alot of other people as soon as the Model B Raspberry Pi went on sale in March I eagerly rushed out and ordered one from Element 14. Due to production delays this didn’t arrive till the start of June.  But given its size, specs and price I was more than happy to see it finally arrive in the mail. Upon its arrival I rushed down to the store and brought a USB card reader, a couple of 16GB sdcards and a HDMI to DVI cable so I could use a standard LCD screen I had laying around as a display. A couple of corrupted attempts at writing the images to the sdcard with dd later, and I was up and running the standard Debian Squeeze image. After a quick poke around the internals I took a quick peek at the CPU information with  “cat /proc/cpuinfo” and was presented with the following output: Processor    : ARMv6-compatible processor rev 7 (v6l) BogoMIPS    : 697.95 Features    : swp half thumb fastmult vfp edsp java tls CPU implementer    : 0x41 CPU architecture: 7 CPU variant    : 0x0 CPU part    : 0xb76 CPU revision    : 7 Hardware    : BCM2708 Revision    : 0002 Serial        : 000000001e57390e Continue reading “Raspberry Pi Overclocking” »

By |June 26th, 2012|Hardware, Linux|0 Comments