Difference between pages "File:PE4302 P1833-720px.jpg" and "VFO-003"

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[[fILE:VFO-003-B.png]]
  
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[[fILE:P771-720px.jpg]]
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== Features ==
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Software controlled VFO
 +
 +
* Arduino Pro Mini Microprocessor
 +
** 8-bit ATMEGA328 CPU
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** 8 MHz
 +
** 3.3V I/O
 +
* Detachable Rotary Encoder/OLED card
 +
** SSD1306 OLED Display
 +
*** I2C Interface
 +
** Controls frequencies with rotary encoder
 +
** 1Hz, 10 Hz, 100 Hz, 1 KHz, 10 KHz, 100 KHz, 1 MHz, 10 MHz steps (software controllable)
 +
* Si5351A Oscillator
 +
** 3 Outputs
 +
** 27 MHz TCXO crystal
 +
*** Adjustable to 0.01 Hz precision
 +
** I2C Interface
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* 3.3V, 50 Ohm output
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* Power
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** [[Mini360_Buck_Converter|MINI-360 DC/DC Buck regulator]]
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** 7-24 VDC
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* Fits in standard extruded enclosures
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=== Arduino Pro Mini ===
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* [https://www.ebay.com/itm/5Pcs-Pro-Mini-3-3V-Arduino-Compatible-Board-8MHz/223719575050?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 ebay listing]
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[[File:ArdruinoProMini-EBAY_PART-720px.png]]
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== Connectors ==
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=== J1 - OLED ===
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# SDA
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# SCL
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# Vcc
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# GND
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[[file:VFO-003_J1.PNG]]
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=== J2 - Display Encoder/OLED (Display card) ===
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# Encoder A
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# Encoder B
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# Encoder Switch
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# SCL
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# SDA
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# Vcc
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# GND
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[[file:VFO-003_J2.PNG]]
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=== J3 - Display Encoder/OLED (Main card) ===
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# Encoder A
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# Encoder B
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# Encoder Switch
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# SCL
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# SDA
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# Vcc
 +
# GND
 +
 +
[[file:VFO-003_J3.PNG]]
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=== J4 - FTDI ===
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 +
Can install 1x6 header on the Arduino Pro Mini and not install this
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# GND
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# GND
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# Vcc
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# RX
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# Tx
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# DTR
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[[file:VFO-003_J4.PNG]]
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=== J5 - Arduino A0-A3/C10-D13 ===
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# A3
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# A2
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# A0
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# D13
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# D12
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# D11
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# D10
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# Vcc (not connected on Rev 1 PCB)
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# GND (not connected on Rev 1 PCB)
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 +
[[file:VFO-003_J5.PNG]]
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=== J6 - Disconnect for Mini-360 Power Supply ===
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* The [[Mini360 Buck Converter]] comes adjusted for a very high output voltage
 +
* Remove jumper to adjust the output voltage to 3.3V without powering the rest of the card
 +
* Install to power the card from the power supply
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 +
[[file:VFO-003_J6.PNG]]
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[[file:Mini-360-004.jpg]]
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=== J7 - Output disconnects ===
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* Cut rear side trace to disconnect
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* Can be used to install external LP filters
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* Limited use due to 74AC14 drivers
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 +
[[file:VFO-003_J7.PNG]]
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=== J7 - Arduino P5-P9 ===
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# P5
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# P6
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# P7
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# P8
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# P9
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# Vcc
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# GND
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[[file:VFO-003_J8.PNG]]
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 +
== Schematic ==
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* [https://github.com/land-boards/lb-boards/blob/master/HamRadio/VFO-003/Documents/Schematics/VFO-003_Rev3_Schematic.pdf Rev 3 schematic]
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== Software ==
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* [https://github.com/land-boards/lb-Arduino-Code/tree/master/LBCards/VFO-003 GitHub Repository]
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== Mechanicals ==
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[[file:VFO-003_FrontPanel_Holes.PNG]]
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[[file:VFO-003_RearPanel_Holes.PNG]]
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== Assembly Sheet / Parts List ==
 +
 +
[[VFO-003 Assembly Sheet - Rev 1]]

Revision as of 14:28, 12 October 2021

VFO-003-B.png

P771-720px.jpg

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
    • 1Hz, 10 Hz, 100 Hz, 1 KHz, 10 KHz, 100 KHz, 1 MHz, 10 MHz steps (software controllable)
  • Si5351A Oscillator
    • 3 Outputs
    • 27 MHz TCXO crystal
      • Adjustable to 0.01 Hz precision
    • I2C Interface
  • 3.3V, 50 Ohm output
  • 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

Can install 1x6 header on the Arduino Pro Mini and not install this

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

VFO-003 J4.PNG

J5 - Arduino A0-A3/C10-D13

  1. A3
  2. A2
  3. A0
  4. D13
  5. D12
  6. D11
  7. D10
  8. Vcc (not connected on Rev 1 PCB)
  9. GND (not connected on Rev 1 PCB)

VFO-003 J5.PNG

J6 - Disconnect for Mini-360 Power Supply

  • The Mini360 Buck Converter comes adjusted for a very high output voltage
  • Remove jumper to adjust the output voltage to 3.3V without powering the rest of the card
  • Install to power the card from the power supply

VFO-003 J6.PNG

Mini-360-004.jpg

J7 - Output disconnects

  • Cut rear side trace to disconnect
  • Can be used to install external LP filters
  • Limited use due to 74AC14 drivers

VFO-003 J7.PNG

J7 - Arduino P5-P9

  1. P5
  2. P6
  3. P7
  4. P8
  5. P9
  6. Vcc
  7. GND

VFO-003 J8.PNG

Schematic

Software

Mechanicals

VFO-003 FrontPanel Holes.PNG

VFO-003 RearPanel Holes.PNG

Assembly Sheet / Parts List

VFO-003 Assembly Sheet - Rev 1

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