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Phone Busy Indicator

This simple circuit gives a clear indication when the phone is use - handy for those who still need dial-up for Internet access.


BBC News - Technology RSS feed

Ransomware 'here to stay', warns Google study
27/07/2017 08:03 AM
UK government's drone collision report criticised
27/07/2017 12:37 PM
Jeff Bezos: Five things you may not know about Amazon's founder
27/07/2017 06:51 PM
UK mobile coverage winners revealed in study
27/07/2017 01:25 PM
Porsche to recall 22,000 cars over emissions software
27/07/2017 04:22 PM
Facebook calls for a more people-centric security industry
26/07/2017 11:30 PM
Google tests auto-play videos in search results
26/07/2017 05:57 PM
Apple faces $506m patent dispute payout
26/07/2017 01:52 PM
Amazon launches Prime Now in SE Asia
27/07/2017 03:31 AM
Overwatch trolls face tougher penalties
26/07/2017 11:00 AM

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