| Wire List |
|---|
Function |
Pin |
Comments |
|---|---|---|
Encoder a |
D2 |
I use a Bourns 24 PPR PEC Series Encoder 100K MTBF |
Encoder B |
D3 |
|
Ground |
GND |
|
Step |
A3 |
Sets the step size from 10 Hz to 100kHz ~ Momentary PB |
VFO A |
D4 |
Two Frequencies Select with default startup of 14.2 MHz |
VFO B |
D5 |
Default FT-8 startup Frequency 14.074 MHz (Alt use a different band like 40M) |
USB/LSB |
A1 |
Normally USB on 20M. |
TUNE Tone |
A2 |
A Ten Second Pulsed 988Hz Tone is initiated with this Pin ~ Momentary PB |
Tone Out |
D6 |
A Square Wave output (Needs RC Filtering for a Sine Wave ) |
LED |
3.3V |
This is the wiring for the ST7735 128X160 Color TFT Display |
SCK |
D13 |
Using other displays like the ILI9341 is a Different Pin Out and needs |
SDA |
D11 |
the ILI9341 Library |
AO |
D9 |
|
RESET |
D8 |
|
CS |
D10 |
|
GND |
GND |
|
SDA |
A4 |
This is the Wiring for the Si5351 PLL Clock Generator |
SCL |
A5 |
Clock 0 is the Local Oscillator Output |
+5VDC |
+5VDC |
Clock 2 is the Beat Frequency Oscillator Output |
GND |
GND |