Dossier No.7: Monitor Collar for Dogs

Heyrex is a monitor that fits to your dog’s regular collar, building a profile of your dog’s behaviour. It achieves this by recording every aspect of your dog’s activity in real time, transferring the information to the Heyrex receiver and data anaysis servers every time your dog comes within range. The Heyrex monitor collates data related to your dog’s behaviour: exercise levels, scratching, sleep quality and other behavioural or health issues. It uses wireless technology to transmit that data from collar to receiver, sending you automatic notifications when behaviour changes, improves or indicates a health problem. You can get more information from

Heyrex contacted Electronic Partners to develope a new version of their dog monitoring collar hardware. Our design enabled a more accurate, power efficient device – the result of placing more accurate sensors on-board. Electronic Partners worked closely with the client to solve issues with the existing design before and during the development. This allowed the client to be fully involved in decision making and achieve a product with the specific features as required.

Technology used:

  • Ultra-low power microcontroller
  • IC Based 2.4GHz RF transceiver
  • Low power 3-axis MEMS accelerometer
  • Accurate temperature measurement
  • Software written in C using IAR compiler and Code Composer Studio
  • Hardware designed in Altium Designer
  • Low cost, 0402 components, Single-sided SMT placement
  • Powered by CR2032 coin cells
  • Extreme low powered Flash memory chip