AVR Chat Box
Description:
This project is a small keyboard which can be interfaced to mobile phone to enter text for SMS.
Micro controller:
AT90S8515
For more details click:
http://www.myplace.nu/avr/avrchatboard/index.htmÂ
Archive for the 'Serial communication' Category
DTMF Decoder
Description:
This project is basically decoding a DTMF signal to digital form where an microcontroller detect the signal. The project uses an integrated decoder chip MT8070DE which decodes all 16 DTMF tone pairs in to 4 bit code. AVR Microcontroller reads these codes and outputs them to LCD as characters. DTMF receiver stores last 234 received […]