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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

Google opens its first UK centre making tech for disabled people
04/12/2022 01:57 AM
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05/12/2022 12:07 AM
Kate Winslet: Parents feel powerless over children's social media use
03/12/2022 03:02 PM
Meta, Amazon, Twitter layoffs: 'Tech layoffs will not destroy our American dreams'
05/12/2022 12:42 AM
Callisto Protocol: Gory new game pushes horror to new limits
04/12/2022 12:46 AM
'Merry Christmas': 30 years of the text message
03/12/2022 01:36 AM
No more airplane mode? EU to allow calls on flights
02/12/2022 01:25 PM
'5G makes my phone pretty worthless'
02/12/2022 06:04 AM
Elon Musk suspends Kanye West from Twitter for inciting violence
02/12/2022 10:41 AM
Elon Musk's Starlink to help strengthen internet in remote UK places
01/12/2022 10:21 AM

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