12.2. Hardware for Remote Control Receivers
In this section we'll focus on IR receiver hardware. Designing remote control transmitters is beyond the scope of this chapter, but our recommendation is to take the same approach we took with the Laddie appliance: Use an off-the-shelf, universal remote.
12.2.1. Detecting and Demodulating the IR Signal
The two stages of detecting and demodulating an IR input can be handled by a single, commercial, off-the-shelf component. Figure 12-5 shows three examples of this part, all produced by Sharp Microelectronics.
Figure 12-5. Infrared detector/demodulators
For the Laddie appliance, we chose the 40 kHz unit from ...
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