The melody has 5 audio circuit, made with pic16f84a American police sound ambulance siren, the alarm sound, the sound of Morse code, according to a previous 32 tune Melody a simpler design. due to change of dipswitch on the... Electronics Projects, Ringtones Circuit PIC16F84A Police, Ambulance, Morse Sounds "microchip projects, microcontroller projects, pic16f84 projects, " Date 2019/08/03