Airsoft Bomb Controled By Microcontroller

[glompos21]

the bomb consist of a microcontroller (avr atmega32), a lcd 16x2, a beeper and a keypad.


https://i215.photobucket.com/albums/...1/dsc00021.jpg
the first step is to enter the password. it can be 16 digits in length and can handle all the number and all
the english alphabet.
the second step is to enter the time for countdown. 1-999 minutes ~16 2/3 hours.
and then the countdown is starts. in order the bomb to be diffused the user must enter the password.
i dont have at this time my cafera so i can take a video but until the sunday i will have it.
every time that a key is press the beeper produce a sound in a deferent frequency according to the
menu that is.


entering the password

https://s215.photobucket.com/albums/...t=dsc00022.jpg

enter the time

https://s215.photobucket.com/albums/...t=dsc00023.jpg

the countdown is started

https://s215.photobucket.com/albums/...t=dsc00024.jpg

entering the random password

https://s215.photobucket.com/albums/...t=dsc00025.jpg

the password was wrong

https://s215.photobucket.com/albums/...t=dsc00027.jpg

entering the right password

https://s215.photobucket.com/albums/...t=dsc00022.jpg

the bomb is defused

https://s215.photobucket.com/albums/...t=dsc00030.jpg

time is up

https://s215.photobucket.com/albums/...t=dsc00031.jpg

and a video

and i am greek so i dont understand italian. please live your comments in english

[Toma ®]

o my god, need,

[Toma ®]

dove l'hai comprato??
se non è comprato spiegami come lo hai costruito!

where did you buy?
if not purchased explain how you've built!

[Nenè]

in italiano no?!?!
please!

[Abbo]

if i want to costruct it what do i do??? (non so neanche se quello che ho scritto è inglese...ehehe))

also i can buy it with istruction for programming processor or eprom????if yes, how much?

[glompos21]

i waiting for a new microcontroler and to add a relay, build the pcb and make a small quantity of ten complete systems.

[Abbo]

and do you sell it????i'm very interessed!!!

i have a question:
when "bomb" explode for timing, the microcontroller has a output signal that can pilot a siren???

[glompos21]

currently no but that why i will add a relay (https://en.wikipedia.org/wiki/relay)

[Fox ITA]

amazing, where did you buy it?

[Abbo]

currently no but that why i will add a relay (https://en.wikipedia.org/wiki/relay)

i understand, what kind of output signal do you use???
because i think is possible to pilot an another circuit for bi-tonal siren without relay...

how do you program microcontroller???