logo

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 RSS feed

US politicians furious at UK demand for encrypted Apple data
14/02/2025 11:23 AM
TikTok returns to Apple and Google app stores in the US
14/02/2025 02:53 AM
Google Maps blocks Gulf of America reviews after rename criticism
13/02/2025 05:20 PM
Unofficial TikTok downloads surge in the US
13/02/2025 10:52 AM
Ex-Google boss fears for AI 'Bin Laden scenario'
13/02/2025 11:37 AM
Law firm restricts AI after 'significant' staff use
12/02/2025 12:04 AM
Elon Musk denies 'hostile takeover' of government in surprise White House appearance
12/02/2025 02:48 AM
UK and US refuse to sign international AI declaration
11/02/2025 05:38 PM
AI chatbots unable to accurately summarise news, BBC finds
11/02/2025 04:20 PM
Data of four dead British teens may have been removed, says TikTok
11/02/2025 03:08 PM


Website by Neo   -   Hosted by Kieran O'Shea