User Manual

# Configure RDS broadcast with program ID 0xADAF (a 16-bit value you specify).

# You can also set the broadcast station name (up to 96 bytes long) and

# broadcast buffer/song information (up to 106 bytes long). Setting these is

# optional and you can later update them by setting the rds_station and

# rds_buffer property respectively. Be sure to explicitly specify station

# and buffer as byte strings so the character encoding is clear.

si4713.configure_rds(0xADAF, station=b"AdaRadio", rds_buffer=b"Adafruit g0th Radio!")

# Print out some transmitter state:

print('Transmitting at {0:0.3f} mhz'.format(si4713.tx_frequency_khz/1000.0))

print('Transmitter power: {0} dBuV'.format(si4713.tx_power))

print('Transmitter antenna capacitance: {0:0.2} pF'.format(si4713.tx_antenna_capacitance))

# Set GPIO1 and GPIO2 to actively driven outputs.

si4713.gpio_control(gpio1=True, gpio2=True)

# Main loop will print input audio level and state and blink the GPIOs.

print('Broadcasting...')

while True:

# Print input audio level and state.

print('Input level: {0} dBfs'.format(si4713.input_level))

print('ASQ status: 0x{0:02x}'.format(si4713.audio_signal_status))

# 'Blink' GPIO1 and GPIO2 alternatively on and off.

si4713.gpio_set(gpio1=True, gpio2=False) # GPIO1 high, GPIO2 low

time.sleep(0.5)

si4713.gpio_set(gpio1=False, gpio2=True) # GPIO1 low, GPIO2 high

time.sleep(0.5)