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Raspberry Pi WiFi configuration
Here’s a short tutorial on how to quickly setup WiFi on your RasPi. I’m using Atheros based TP-LINK TL-WN721N USB adapter – good and cheap. You can skip firmware-related steps if your card doesn’t need...
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Setting up hardware RTC in Raspbian
My Raspberries are expanded with DS3231 I2C realtime clock. It’s a very simple solution, as only required external component is a backup battery (crystal is integrated into the chip!). And it’s also...
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Building TP-LINK TL-WN725N WiFi USB Adapter driver for Raspberry Pi
UPDATE (2013-01-25): I’ve updated RPi firmware today and it seems that the latest kernel (3.6.11+) includes working driver for TL-WN725N. Instructions below are now obsolete/educational I’ve decided to...
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Precompiled TP-Link TL-WN725N driver for 3.2.27+ Raspbian kernel
Download, copy it to /lib/modules/3.2.27+/kernel/drivers/net/wireless/ and reboot. After that, setup your wireless network.
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Raspberry Pi Serial Shield expansion boards
One of my first hardware projects for RPi were Serial Shield expansion boards. They provide easily accessible serial interfaces with voltage level conversion for interfacing with 5V logic and a battery...
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Barometric pressure sensor, Raspberry, Python and things in the works
After a few weeks of waiting, I’ve finally received two breakout boards with BMP085 barometric pressure sensors. These little chips can run from as low as 1.8V to 3.6V, and measure atmospheric...
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