Contact Wire Device

The current revision 5 is optimised for production and ready for extensive field trials. It uses the RP2040 as the central processor with Bluetooth support via the embedded ESP32. Sensor modules underneath the unit are replaceable to suit new application requirements.

20 July 2024

3D modelling was a key facet of the design process, both to develop parts for testing, checking part alignment, and building jigs to assist with assembly of the device and sensors.

29 June 2024

Fine tuning of the measurement algorithm was carried out using machine learning and 3D printed parts. Refinement of the design included relocation of the peripherals onto the PCB and removing the LCD. This greatly simplified assembly of the unit.

9 May 2024

Revision 3 explores the use of flexible printed circuits to simplify the wiring of peripherals.

21 August 2023

First prototype brings all the peripherals together within a 3D printed enclosure.

1 November 2022

A bread-boarded system based on the Raspberry Pi Pico, TFT screen, sensors and bluetooth module demonstrate that the selected peripherals are easy to work with.

1 July 2022