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Pulsecounter PCB’s have arrived

I posted recently about detecting power loss in an AVR and quickly writing values to EEPROM before power is lost completely and have since received the PCB’s I ordered from oshpark. This is the first time I have…

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Soldering ESCs

I’m using 30 Amp hobby King ESCs in my Quad Copter. They each come with five bare ends which need connectors soldered to them. Here’s a picture showing the result of about two hours of soldering and heat…

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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…

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Water Meter Project

Our water at home is supplied by way of rainwater off the roof of the house. We have about 55000 Litres (~14500 Gallons) of storage capacity but a long dry summer sees the levels drop considerably. I decided…

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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…

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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…

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Raspberry Pi – Increasing the USB power limitations Part 2

Last week I wrote about how to bypass the USB Polyfuses on the Raspberry Pi to Increase the available power for USB devices. Unfortunately, my Raspberry Pi is still unstable (I’ve tried both Raspian and ARCH Linux), so…

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Raspberry Pi – Increasing the USB power limitations

I bought a Logitech C920 webcam last week. It’s a very nice unit which outputs Full HD (1920×1080) video. The picture is really clear but it draws more power than the Raspberry pi can supply. For me this…

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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…

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DIY Incubator Egg Turner – Video

Here’s a video of the Egg Turner running at full speed. I definitely need to slow it down!

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