Menu

There are five buttons B1 - B5 and three encoders E1 - E3, each encoder with an additional pushbutton EB1 - EB3

BUTTON	TEENSY PIN	DESCRIPTION
B1	pin 1	band-
B2	pin 2	band+
B3	pin 3	change mode
B4	pin 3	menu point-
B5	pin 3	menu point+

ENCODER or BUTTON	TEENSY PIN	DESCRIPTION
E1	pin 16 & 17	tune / change frequency
EB1	pin 38	toggle tune step [1Hz, 100Hz, 500Hz, 5kHz/9kHz]
E2	pin 1 & 2	filter bandwidth
EB2	pin 0	SNAP carrier function OR menu1 toggle button
E3	pin 4 & 5	Volume / other settings from Menu2
EB3	pin 8	menu2 toggle button

I will try to give a very brief overview over the functions of the buttons:

B1 / B2:

• switch band up/down

B3:

• change demodulation mode

B4 / B5:

• step up/down in menu points

E1

• tune encoder / change frequency

EB1

• toggle between tune steps

E2

• set filter bandwidth

EB2

• SNAP function to snap to a carrier (+- 4Hz accuracy)
• when you are in specific menu points (which require a YES/NO decision), the function changes to this decision (for example: Save Eeprom, Load Eeprom, IQ Auto, Reset codec, Show spectrum)

E3

• sets all the settings from Menu 2 (eg. audio volume, RF gain and many many more . . .)

EB3

• toggles settings from Menu 2, when appropriate (LMS type, type NR, X or E in NR)