EggLogger is a a miniature motion logger, build in (small) plastic eggs. These devices are used to monitor the turning of the egg in the nest while breeding.
This product has been developped in close collaboration with Groenhorst college Barneveld.

GNC Solutions is looking for partners to produce this technology and bring it to the market.

The EggLogger is a small electronic device that senses the turning of an egg by a breeding bird in a nest. This sensing is done by three small accelerometers that measure gravity in three directions. From these measurements, two tilt angles can be derived. The measurements are stored in the device inside the egg for later analysis. Along with the accelerometer measurements, the temperature of the egg is measured and stored.
The device is powered by a small button-cell battery. After a recording of typically three weeks, the information can be downloaded to a computer by means of a micro-USB cable and a specifically developed computer interface device. Duration of a recording is mainly limited by internal storage capacity. In practise, duration of recording may last from a few months for high detail recordings up till six months for low detail recordings.
Information can be presented in a graph on the screen and can be stored in a file using a standard file format. This file can be imported in for instance Microsoft-Excel for further processing and analysis. Several egg-types have already been developped, varying in size from 25mm to 100mm.

Downloads:

Below left: 3D printed egg (25 x 19 mm) with a small electronic logging device inside. Different sized eggs are available to investigate the breeding behaviour of different birds. Available egg sizes: 25x19mm, 52x37mm and 67x48mm. Other egg-size available on request.
Only a single USB interface device is required to interface a multiple of eggs. Photo below on the right: 3D-egg (25x19mm), with a datalogger inside, in a nest of Agapornis Taranta.

Below (left): photo of the USB interface device that connects the EggLogger to a computer
Below (middle): photo of the EggLogger and two 3D-printed egg halves.
Below (right): USB interface in plastic housing.