Making sensors come alive using the drawdio circuit

Key Insight: We took the output of the drawdio circuit and connected it to the mic pin of the headphone jack like so :

This was our key breakthrough. Having interfaced the drawdio with the computer opened a plethora of possibilities for us to play around with.

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In this following videos, we have connected the pin -3 of the drawdio circuit (above) to the mic of the headphone jack and in the placeholder of R5, we insert different sensors such as the LDR(Light dependent Resistor). IR led, etc. This allows us to have an audible feedback from the sensors that are connected, making them ‘come alive’.

 

One thought on “Making sensors come alive using the drawdio circuit

  1. Pingback: Wireless Drawdio circuit | The hacker Diary

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