# 8-Step Arduino Sequencer

**URL:** <https://lookmumnocomputer.discourse.group/t/8-step-arduino-sequencer/467>\
**Category:** KOSMO MODULES\
**Created:** [March 28, 2020, 4:28pm UTC](https://lookmumnocomputer.discourse.group/t/8-step-arduino-sequencer/467 "2020-03-28T16:28:15Z")\
**Posts on this page:** 1\
**Showing post:** 14

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**Author:** ![fredrik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/fredrik/32/682_2.png) [@fredrik](https://lookmumnocomputer.discourse.group/u/fredrik)\
**Post date:** [March 29, 2020, 4:42pm UTC](https://lookmumnocomputer.discourse.group/t/8-step-arduino-sequencer/467/14 "2020-03-29T16:42:31Z")

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(Wikipedia says “_In the UK, the terms_ jack plug _and_ jack socket _are commonly used for the respective male and female phone connectors. In the US, a stationary (more fixed) electrical connector is called a_ jack _._” and mentions that “jack” comes from a 1880’s patent. I just looked at that, and it’s for a “_cut-out or spring-jack switch_” mechanism where the signal is automatically grounded when nothing’s plugged in. So “jack” refers to the switch mechanism, not the plug, and you’re all wrong 😜)

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