A service CARD THAT PLAYS SIMON states
When your name is Simon as well as you want to develop your own circuit board service card, it makes best sense to integrate a game of Simon Says, as well as that’s precisely what [Simon] did with his service Card.
You may see a resemblance to the Engineer’s emergency service Card; that’s since [Simon] took motivation from that card to develop his own. The game of Simon states is played by means of 4 low-profile pushbuttons as well as 4 0805 LEDs. The microcontroller of option to run the game is an ATtiny45 set as much as work with the Arduino IDE. however with only 5 pins offered for I/O, [Simon] had to provide up 4 pins to the LEDs as well as configure the staying pin as an analog input. The buttons are tied into a voltage divider that feeds the analog input, so depending which button is pressed, a different voltage is checked out in, therefore a value from 0 to 1023 figures out which button was pressed.
One of the excellent things about this write-up is that it goes with the process of etching PCBs at house utilizing the toner-transfer method. We’re not sure exactly how lots of home-etched service cards he’s ready to pass out, however definitely whoever does get the card, will never fail to remember his name.