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Standard

1.Easy to use and quick to get started

2.The process supports design scales of 300 devices or 1000 pads

3.Supports simple circuit simulation

4.For students, teachers, creators

Profession

1.Brand new interactions and interfaces

2.Smooth support for design sizes of over 30,000 devices or 100,000 pads

3.More rigorous design constraints, more standardized processes

4.For enterprises, more professional users

Std edition Nano VFO 3.1 square

Profile:Digital VFO

License: GPL 3.0

Project source: Cloned from Nano VFO 3.1

Published Time: 2022-03-20 23:56:38
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Description
  • CPU: Atmega328P
  • PLL: Si5351 and/or Si570
  • Display: OLED 1.3" 128/132x64, OLED 0.96" 128x64
  • Encoder: mechanic rotary or AS5600 magnetic encoder
  • Keypad: 4+1 buttons

Support different TRX architecture: single  IF superheterodyne, direct conversion with quadrature output. Builtin CW key: auto/iambic mode, 2 phrase memory, morse decoder VFOA/B, SPLIT, calibrated S-meter. Support CAT (KENWOOD protocol) Control attenuator, LNA, 5 band BPF without decoder and 16 band with external decoder

Firmware is opensource and available on github For more details visit to project homepage http://www.ur5ffr.com/viewtopic.php?t=277

design drawing
schematic diagram
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PCB
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ID Name Designator Footprint Quantity
1 0.1u C1,C2,C4,C5,C6,C9,C10,C11,C14,C16 0805 10
2 0.1 C3,C64,C65 0805 3
3 100u C7,C17 CAP-D6.3XF2.5 2
4 470u C8 CAP-D6.3XF2.5 1
5 0.01 C12,C13 0805 2
6 1u C15 0805 1
7 0.1 C63 C0603 1
8 10u C66 0805 1
9 OLED 1.3" DISP1 SSH1106 1.3IN 128X64 I2C (HOLES) 1
10 I2C Ext H4 DIP-1X4P-2.54MM-M 1
11 Ctrl J1 HDR-M-2.54_2X8 1
12 Bands J2 HDR-M-2.54_2X5 1
13 VFO Out J3 HDR-M-2.54_2X3 1
14 Encoder J4 HDR-M-2.54_1X5 1
15 Enable Ext Power P1 HDR-2X1/2.54 1
16 USB Pwr P2 HDR-2X1/2.54 1
17 Power 6V..12V P8 HDR-2X1/2.54 1
18 47k R1 0805 1
19 10k R2,R3,R20 0805 3
20 1k R4 0805 1
21 4k7 R10,R11 0805 2
22 33k R15 0805 1
23 15k R16 0805 1
24 5k6 R17 0805 1
25 2k2 R18 0805 1
26 1k R30,R32 R0603 2
27 10k R33 R0603 1
28 Key 1 SW-2SWITCH,SW-3SWITCH,SW-4SWITCH,SW-5SWITCH SW4-6.2X6.2X5.0MM DIP BUTTON 4
29 Si5351A-A-GT U2 MSOP10 1
30 74HC595 U3 SOP-16_150MIL 1
31 AMS1117-5.0 U6 SOT-223-3LEAD_TABPIN2 1
32 AMS1117-3.3 U10 SOT-223-3LEAD_TABPIN2 1
33 CH340G U17 SOIC-16_150MIL 1
34 ATMEGA328_TQFP U18 TQFP32 1
35 micro USBFemale USB1 MICRO-USB-1 1
36 WIRE_CONNECTION_III_RevE_Date15jun2010 WC1 0805 1
37 XO 25MHz X1 XO 7050 3025 1
38 25MHz XTAL1 HC-49U-PTH 1
39 16MHz Y1 3213 1
40 12MHz Y2 3213 1

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