This is a P2X8C4M64P/Propeller 2 application that displays power levels received by a packet radio in the frequency domain as a "waterfall." It utilizes one of a supported ISM-band transceiver IC.

• Supported transceivers: CC1101, CC2500, SX1231
• Display a waterfall of band radio is tuned to
• Change LNA (CC1101, CC2500, SX1231), DVGA gains (CC1101, CC2500)
• Change receiver bandwidth (CC1101, CC2500, SX1231)
• Change IF (CC1101, CC2500)
• Change color scale offset/reference level to improve display contrast
• Change waterfall span
• Change base freq

• P2 rev B or newer silicon. 250MHz or greater clock is strongly recommended (default is 250MHz)
• Compatible RF module
• NOTE: Module must allow direct/low-level programming of the transceiver IC. There exist some modules that are intended to be used as wireless UARTs/"wireless serial ports" - these won't work.

• FastSpin (tested with 4.1.4)

• Very early in development - may malfunction, or outright fail to build
• Crude - simply sweeps frequencies and reads the radio's RSSI register for that frequency. Not optimized and doesn't display absolute power levels
• Staircase effect seen when signals significantly above noise floor are seen - i.e., they don't appear consistently at the same frequency, even if they actually are (optimization? Transceiver limitation?)

• Add some basic controls (e.g., base freq, RX BW, gain, etc)
• Add some more instrumentation (display various current radio settings)
• Add peak hold/reset
• Add marker(s)
• Add support for CC1101
• Add support for SX1231
• Add support for SX1276
• Add support for SX1280
• Add support for CC2500
• Add support for SI4463
• Add support for demodulation
• Save screenshot to SD
• Save history to SD
• Save demodulated data to SD
• Change base frequency to center frequency (likely more familiar coming from PC-based SDR software)
• Add reference level indicator to color scale