Difference between revisions of "VFO-003"

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=== J4 -- FTDI ===
 
=== J4 -- FTDI ===
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 +
# GND
 +
# GND
 +
# Vcc
 +
# RX
 +
# Tx
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# DTR
  
 
[[file:VFO-003_J4.PNG]]
 
[[file:VFO-003_J4.PNG]]

Revision as of 15:06, 29 July 2021

VFO-003-B.png

Features

  • Software controlled VFO
  • Arduino Pro Mini Microprocessor
    • 8-bit ATMEGA328 CPU
    • 8 MHz
    • 3.3V I/O
  • Detachable Rotary Encoder/OLED card
    • SSD1306 OLED Display
      • I2C Interface
    • Controls frequencies with rotary encoder
    • 100 Hz, 1 KHz, 10 KHz, 100 KHz, 1 MHz, 10 MHz steps (software controllable
  • Si5351A Oscillator
    • 3 Outputs
    • 25 or 27 MHz crystal
    • I2C Interface
  • Power
  • Fits in standard extruded enclosures

Arduino Pro Mini

ArdruinoProMini-EBAY PART-720px.png

Connectors

J1 - OLED

  1. SDA
  2. SCL
  3. Vcc
  4. GND

VFO-003 J1.PNG

J2 - Display Encoder/OLED (Display card)

  1. Encoder A
  2. Encoder B
  3. Encoder Switch
  4. SCL
  5. SDA
  6. Vcc
  7. GND

VFO-003 J2.PNG

J3 - Display Encoder/OLED (Main card)

  1. Encoder A
  2. Encoder B
  3. Encoder Switch
  4. SCL
  5. SDA
  6. Vcc
  7. GND

VFO-003 J3.PNG

J4 -- FTDI

  1. GND
  2. GND
  3. Vcc
  4. RX
  5. Tx
  6. DTR

VFO-003 J4.PNG

J5 - Arduino A0-A3/C10-D13

VFO-003 J5.PNG

J6 - Disconnect for Mini-360 Power Supply

VFO-003 J6.PNG

J7 - Output disconnects

  • Cut rear side trace to disconnect

VFO-003 J7.PNG

J7 - Arduino P5-P9

VFO-003 J8.PNG

Schematic

Rev 1 schematic

Assembly Sheet / Parts List

VFO-003 Assembly Sheet - Rev 1

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