ChronoJump - free software for jump, run, reaction time and pulse timetracking

Related info:
- Graph about methacrylate mount.
- Connect more than one Chronopic to measure different channels important: connecting n chronopics to a computer / importante: conectando n chronopics a un ordenador.
- Info about old versions: Chronopic 2.0 & Chronopic 1.0.
- faq (chronopic).
- If you have any problem with the Chronopic, check Problems page.
If you want to build it read this page: Chronopic 3.0 Here there's the materials list in english and in spanish.
To record Chronopic firmware, read Record Chronopic Firmware.
Attention: Chronojump team takes no responsability for any problem on the creation of Chronopics by other people.

The instrument that allows us to know if the subject is in the air or in the ground can be a platform of contacts or a system of photoelectric cells.

Old informations:

Before the ChronoJump project, the projects Salta and Gsalta were created (nowadays no long existing), in these others the chronometer did not exist, and platform-PC connection was produced by the parallel port. Although this method is not adapted to ChronoJump it is included for those interested: information of connection by parallel port (spanish).
As an alternative, another possibility of construction of the contacts platform has been described, but it has not been proven or adapted to ChronoJump: "Development of the Platform Prototype of a software, for Evaluation of adapted Vertical Jump in video game carpet" (spanish).

Read Connection of Velleman PEM10D photocell to Chronopic
If you want more information, read this page: Photocells (spanish).