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64 channels Infra-Red Remote Transmitter circuit build around PT2222M IC, The IC is pin to pin compatible with NEC uPD6122 respectively, the remote is capable of controlling 64 functions keys and 3 double keys. The PT2222M Infra-red remote control transmission ICs using the NEC transmission format that is ideally suited for TVs, DVD Players, Audio Equipment, Air Condition, etc. By combining external diode and resistors, maximum of 65536 custom codes can be specified. The NEC transmission format consists of leader codes, custom codes (16 Bits), and data codes (16 Bits). It can be used for various systems through decoding by a microcontroller.
Features
- Low Voltage 2V To 3.3V
- Low Current dissipation: 1uA Max (Standby)
- Custom Codes: 65536 (Set by optional provided diodes and resistors)
- 64 Codes (Single Input) , 3 Codes ( Double Input) , Expandable up to 128 Codes through J1 Jumper
64 Key Infrared Remote Controller using PT2222M – NEC Code – [Link]
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