Braincafe Robotics











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Darlington pair touch sensor

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hi people.. I am Saksham from Lucknow, India. This is my new darlington pair touch sensor made by me, using four NPN transistor BC-547 arranged on a breadboard. When we touch the "touch plate" a very little amount of current flows from our body to the base of the transistor. The two transistor amplify the current and light up the LED. Darlington pair touch circuit... LED lights up by touching the "touch plate"       a schematic of the circuit       only difference is that i'v used 4 transistors in this format
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my arduino based LED cube 3X3X3

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My LED cube - 3X3X3.. arduino based. Hello people.. I'm Saksham Prakash from Lucknow, India. Recently I made a really simple LED cube which can display numbers, alphabets, patterns and designs etc.    The Arduino Micreocontroller The Cube 3X3X3 Random LED Program Program : int i; int a; void setup () {                                                                   for (i=4; i<14; i++){     pinMode(i, OUTPUT); } Serial.begin(9600); } void loop(){   digitalWrite (13, HIGH);   digitalWrite (2, HIGH);   digitalWrite (3, HIGH); ...
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