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Why are they giving Vboost (9.25v) to the IR led array instead of Vcc(5v)?
at 9.25 V, all five of the IR LEDs can be powered in series so that they consume the lowest possible amountof power. (Note that you can switch the LEDs on and off to save even more power.)
The U4-U8 is not optocouplers but a reflectance sensor [...]
TB6612FNG is not available in my local market.So, i decided to switch on to L298 as motor driver as an alternate for TB6612FNG.But, I don't know to make the connections to the circuit.How should i make connections by replacing TB6612FNG with L298 in the circuit i have given?http://img693.imageshack.us/img693/7016/0j1164700.png
I don't believe that connecting the two sense pins to ground is a problem.