As you might have noticed, the 38-KHz pulse generator is built around the evergreen timer chip NE555P (IC1). Here, the RC components (R5-C3-P1) set the astable frequency to drive the infrared light ...
Vishay Intertechnology VSH recently upgraded its family of infrared (IR) transceiver modules, namely TFBS4xx and TFDU4xx, with its in-house integrated circuit (IC) and surface emitter chip technology.
Two communication links consisting of IR and RF are being used by this remote control which is subdivided into three parts as separate boards including RF transmitter, IR transmitter, and IR/RF ...
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