I have an EcoWitt HP2553 weather station installed at my home which includes a number of EcoWitt WH51 soil moisture sensors. I have used a simple and inexpensive technique to increase the radio range of these sensors. Details here
The Cassette player mechanisms in the Pioneer DC-Z94 stereo suffer from 2 common problems. Explanation and Repairs here
AirSpayce Pty Ltd has designed and been granted patents for an innovative self damped one-way valve using a new valve design principle that reduces or eliminates fluid hammer (also known as water hammer or hydraulic shock ) in certain types Continue reading
We have been doing some development work recently involving sending telemetry from Unmanned Aerial Vehicles (UAVs) over 2.4GHz radio links, and have successfully used our Virtual Wire library (http://www.airspayce.com/mikem/arduino/VirtualWire) as the data protocol. Our work centred around using the otherwise Continue reading
We have recently been doing some work with Tait 2040 VHF trunked radios, as part of the testing and development of our new Map27 library: http://www.airspayce.com/mikem/Map27 The Map27 library connects to a Map27 serial port on a trunked radio such Continue reading
This is an expansion of an earlier article originally published at http://www.seeedstudio.com/forum/viewtopic.php?f=23 t=4586 sid=d813605d07038d3b3593f48e9587a682 After some struggles, we have managed to get an Arduino with the Seed SLD63030P BlueTooth shield: http://www.seeedstudio.com/wiki/index.php?title=Bluetooth_Shield and a Linux host to pair up and pass serial data Continue reading
I recently conducted some performance tests on a number of Arduino variants, looking specifically at digital IO speeds. I tested PCDuino, Arduino Uno and Chipkit Uno32. The same basic code was run on each: void setup() { pinMode(6, OUTPUT); } Continue reading