Usar la aplicación APKPure
Obtener 555 Timer Project Free versión histórica en Android
Esta aplicación proporciona ejemplo de 555 Temporizador de Circuito
This application provide the circuit for 555 Timer IC .It can be use for student or engineer as an reference when use 555 Timer.Not just that it also can be combine with your electronic projects and circuits .This application do not need internet to working.Thank you