Category: Weather Station

Petit Studio Raspberry Pi HDMI extender cheap cable fix

Note: This fix is NOT due to a fault of the Petit Studio Raspberry Pi Camera extension kit, it’s due to the use of cheap HDMI leads. I brought some Petit Studio Raspberry Pi HDMI camera extenders from Tindie. These

Posted in Electronics, Raspberry Pi, Weather Station

AVR – Detecting loss of power and writing to EEPROM

As part of a recent AVR project, I wanted a way to increment a counter and store it even if the power was lost. This could be done with an external flash memory device, but I wanted to use the

Posted in AVR, Embedded Systems, Weather Station

Update – Bosch BMP085 Source (Raspberry Pi)

I have updated my code to Read data from a Bosch BMP085 with a Raspberry Pi to correct some bugs reported back to me. The main bug was that I’d forgotten to close the i2c file at the end of

Posted in Electronics, Projects, Raspberry Pi, Weather Station

Update – Reading data from a Bosch BMP085 with a Raspberry Pi

Since my earlier post on Reading data from a Bosch BMP085 with a Raspberry Pi, the lm-sensors.org website has gone down. If you need smbus.c or smbus.h, here are copies from back in August 2012. Note that I have made

Posted in Electronics, Projects, Raspberry Pi, Weather Station

Update – Reading data from a Sensirion SHT1x with a Raspberry Pi

After a few comments regarding my code to read data from a Sensirion SHT1x with a Raspberry Pi, I’ve got some updated code. Please see my previous post for general information, but use the code here. The list of changes

Posted in Electronics, General Randomness, Projects, Raspberry Pi, Weather Station

La Crosse TX23U Anemometer Communication Protocol

I’ve previously documented the protocol of the La Crosse TX20 Anemometer, but mine recently failed. The La Crosse TX23U Anemometer is almost half the price of the TX20, so I decided to buy one and see if I could decode

Posted in Electronics, Projects, Raspberry Pi, Weather Station

Reading data from a Sensirion SHT1x with a Raspberry Pi

Note: An updated version of my code is available at /2012/11/update-reading-data-from-a-sensirion-sht1x-with-a-raspberry-pi/ The Sensirion SHT1x range of sensors provide a rather convenient way to accurately measure Temperature and Relative Humidity. They aren’t the cheapest sensors as they typically sell for around

Posted in Electronics, General Randomness, Raspberry Pi, Weather Station

Reading data from a Bosch BMP085 with a Raspberry Pi

Update(2): I’ve fixed some reported bugs in this code. Please use the newer version here. Update: If the LM Sensors website is still down, you can get smbus.c and smbus.h from here. I needed a way to measure air pressure

Posted in Electronics, Raspberry Pi, Weather Station

A new toy to play with

Look what I received in the mail today…. A shiny new Raspberry Pi single board computer. These things are revolutionising the world of embedded electronics – They have a 700MHz ARM processor, 256MB RAM, Two USB Ports, HDMI and Composite

Posted in Projects, Raspberry Pi, Weather Station

Running the network cable for the Anemometer

Those who know me, know I don’t like doing things properly, so it was only natural that the Anemometer for my weather station was wired rather than using an RF link such as an XBee and a solar panel. I

Posted in Projects, Weather Station