electronics logo

phone busy

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.


clock module

Tiny Real Time Clock (RTC) I2C module - DS1307 AT24C32 TE187


An article on a DS1307 based I2C module which can be used with Arduino programmable microcontrollers. These seem to be sold with non-rechargeable batteries, but charging circuitry for rechargeable batteries, which means some work is needed to improve the battery utilization.


BBC News - Technology RSS feed

'Fake' Amazon ambassadors baited on Twitter
16/08/2019 04:58 PM
Google Play app store accused of anti-gay bias
16/08/2019 11:44 AM
Home Office role in 'Woke' Muslim social network revealed
16/08/2019 10:26 AM
Eurofins Scientific: Cyber-attack leads to backlog of 20,000 forensic samples
16/08/2019 04:44 AM
Meadowhall shoppers scanned in facial recognition trial
16/08/2019 03:00 PM
Uganda and Zambia rejects Huawei spying allegations
16/08/2019 05:19 PM
Jimmy Kimmel show fined $395,000 over alert joke
16/08/2019 08:54 AM
Data regulator probes King's Cross facial recognition tech
15/08/2019 04:44 PM
YouTube: LGBT video-makers sue claiming discrimination
15/08/2019 01:40 PM
Biostar security software 'leaked a million fingerprints'
14/08/2019 11:30 AM

Website by Neo   -   Hosted by Kieran O'Shea