Difference between revisions of "VFO-001"
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'''This is a work in process - Gathering pieces.''' | '''This is a work in process - Gathering pieces.''' | ||
− | [[File: | + | [[File:VFO-001_P113-720PX.jpg]] |
== Features == | == Features == |
Revision as of 13:50, 24 October 2020
This is a work in process - Gathering pieces.
Contents
Features
- DD1306 OLED Display
- I2C Interface
- Blue Pill Microprocessor
- Arduino compatible
- 3.3V
- Understands band switch for MHz displayed
- Si5351 Oscillator
- 10 Hz steps
- I2C Interface
- 3 Outputs
- 27 MHz crystal
Schematic
Parts
Blue Pill Card
- 3.3V operation work without level shifters for I2C
- OLED can run from 3.3V
- Si5351 can only run from 3.3V
- Used right angle headers and Dupont cables
- Replaced BOOT 0,1 jumpers
- Jumper on BOOT1
- Switch on BOOT0 - easier to download code
- Download via serial
- Arduino IDE
128x32 OLED
Arduino Library for OLED
U8G2_SSD1306_128X32_UNIVISION_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE); // STM32, Ebay OLED
u8g2.setFont(u8g2_font_ncenB14_tr);
Hello World Code
U8G2_SSD1306_128X32_UNIVISION_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE); // STM32, Ebay OLED void setup(void) { u8g2.begin(); } void loop(void) { u8g2.clearBuffer(); // clear the internal memory u8g2.setFont(u8g2_font_ncenB08_tr); // choose a suitable font u8g2.drawStr(0,10,"Hello World!"); // write something to the internal memory u8g2.sendBuffer(); // transfer internal memory to the display delay(1000); }
Rotary Encoder/Breakout Board
- Includes pushbutton Switch
- Includes Pull-Up resistors
- Needs R/C filter on output for debounce
- Reading Rotary Encoders - Arduino reference
- Simple Rotary Encoder Arduino library
- Library for the Arduino environment for using a rotary encoder as an input
Si5351 Frequency Generator
- I2C Daisy-chain connector
- 3 outputs
- Tx
- Rx (may not need to use separate output)
- BFO - could be adjusted
Measurements
Libraries/Example Code
- Land Boards Application
- VFO and BFO with Si5351A, OLED and Arduino
- U8g2: Library for monochrome displays, version 2
- Si5351 Library for Arduino
- Universal Digital VFO Si570/Si5351
- Adafruit_Si5351
- Si5351 Library for avr-gcc
- vk3hn_VFO_controller
- Simple BFO with si5351 controlled by Arduino
Videos