sexta-feira, 10 de fevereiro de 2012

The IC555 part 3

In the last two posts we have seen the theory to connect the 555 as a timer, let's see how this is really mounting.

As we saw earlier, for 5 [s] we use a capacitor of 100 [mF] and a resistor of 47 [KΩ
]. But there is another resistor been used that is not used to calculate the time, for him we will use the value of 1 [KΩ].

Below the schematic of the assembly:

With the exception of the values​​, the only change to the example of the previous post is the third  pin of 555, it goes directly connected to pin 15 of the LCD.

You can check out the video here.

Well, that concludes our learning about the 555, we hope that this knowledge is useful for other projects beside ours.

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