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IoT

Raspberry Pi vs. Orange Pi

In the last few years, mini Linux boards have become almost as popular as popcorn. The Raspberry Pi is the most known model, but is it really better? Let’s look at some specs and find out. The Raspberry Pi 3 includes: a cortex A53 quad-core processor clocked to 1.2GHz, 10/100 ethernet, Bluetooth 4.1, 1GB DDR2, wireless LAN, and 1080p video. What a lot of nice features! The Raspberry Pi costs only $30 making it a very affordable option for IoT. Another competing Linux IoT board is the Orange Pi. When I first discovered the Orange Pi, I was immediately quite skeptical and decided my Raspberry Pi must be much better. Nevertheless, I decided to check the specs and was quite astounded by what I found. The Orange Pi Plus2e includes: a cortex A7 quad-core 1.3GHz processor, Gigabit ethernet, 2GB DDR3, an infrared transmitter, 16GB onboard eMMC storage (eliminating the need for an SD card) and 4k video. Although both the devices work with similar Linux distributions, the Orange Pi has better RAM, ethernet, graphics, and onboard storage. The only downside of the Orange Pi is that it lacks Bluetooth, but this can be rectified by adding a USB Bluetooth dongle. It also costs slightly more at $44 instead of just $30 for the Raspberry Pi. Among the many Linux boards on the market these two are probably the most popular. Although the Raspberry Pi is the flagship, the Orange Pi is ahead in the race on many counts of performance and usability. In my opinion, the Raspberry Pi is better for smaller projects and the Orange Pi for larger ones. But the final choice is up to you.

Raspberry Pi 
Orange Pi

Extreme Raspberry Pi Overclocking!

Hi, All

Well, today's project is not actually fixing something I did have an old Raspberry Pi 2 that needed some speed to help it keep up with the Raspberry Pi 3. So I got it out and began working with it. Warning! Overclocking is not recommended by the raspberry pi foundation and it will void you warranty so proceed at your own risk! First, you will want to go to you local computer shop and get a big heat sink (see picture!). 

 

The important thing is to get the heatsink securely mounted to the processor with thermal grese. This can be hard and is different for each pi depending on the case so just use your imagination( I used a heatsink off a bad led monitor to bridge the space between the processor and the heatsink). With this installed I then opened the terminal and typed: Sudo nano /boot/config.txt  after opening this file I went to the CPU clock line, uncommented it and set the clock speed to 1500mhz!. Then I rebooted the pi and it worked fine so I upped the CPU clock. This part of the process is done by trial and error so if it does not work correctly just reboot and hold down the shift key while booting this will give you the noobs setup screen with an option to edit config.txt then just simply change the settings that you last set back and reboot. You can also set core freq, SDRAM voltage and overvolt. this is also trial and error. When I was finished I had the Raspberry pi running at 2100mhz while never getting hotter than 30° C (see picture!)

 

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