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Project:Alpha transceivers: Difference between revisions
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== Architecture == | == Architecture == | ||
They are single chips with an external crystal that communicate up to 300m using FSK at 433, 868 or 915MHz. They have auto tuning, RSSI, and programmable gain, channel and sensitivity. | They are single chips with an external crystal that communicate up to 300m using FSK at 433, 868 or 915MHz. Each device has a nominal frequency, but can be tuned to the other bands. | ||
They have auto tuning, RSSI, and programmable gain, channel and sensitivity. | |||
They are controllable through SPI, and provide a clock, interrupt pins and low battery indicator for use without an Arduino. | They are controllable through SPI, and provide a clock, interrupt pins and low battery indicator for use without an Arduino. | ||
