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Design and implementation of a low-cost classroom response system for a future classroom in the developing world

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Academic year: 2017

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Fig. 1.  A typical classroom in the developing world
Fig. 3. The HUB based on open source hardware
Fig. 4 shows the 1-Wire end-device hardware incorporating a 1-Wire client based on  an 8-channel, 1-Wire Addressable Switch that can read eight inputs from a simple  keypad [48]
Fig. 6. A homemade keypad for the 1-Wire clicker
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