Difference between revisions of "VFO-001"

Revision as of 13:20, 30 October 2020

SDD1306 OLED Display
- I2C Interface
- OLED runs from 3.3V (can run from 5V but this use has 3.3V)
Rotary Encoder Break Out Board
STM32 (Blue Pill Board) Microprocessor
- Arduino compatible
- 3.3V
Si5351 Oscillator Breakout Board
- 10 KHz - 40 MHz tuning range
  - 100Hz/1KHz/10KHz/100KHz/1MHz/10MHz steps
- I2C Interface
- 3 Outputs
- 27 MHz crystal
- 3.3V operation works without level shifters for I2C*
- Si5351 can only run from 3.3V
Used right angle headers and Dupont cables for low profile
Replaced BOOT 0,1 jumpers
- Wire jumper on BOOT1
- Switch on BOOT0 - easier to download code
Programmed via Arduino IDE
- Download via serial
Extruded Aluminum Enclosure Box - 94mm x 83mm x 30mm - Out of stock

@@ Line 57: / Line 57: @@
 * [https://github.com/etherkit/Si5351Arduino Si5351 Library for Arduino]
 * [https://www.best-microcontroller-projects.com/rotary-encoder.html Rotary Encoder] - Software debounced
-=== Arduino Library for OLED ===
-* [https://github.com/olikraus/u8g2 U8g2: Library for monochrome displays, version 2]
-** [https://github.com/olikraus/u8g2/wiki/u8g2reference Reference library]
-** Constructor
-<pre>
-U8G2_SSD1306_128X32_UNIVISION_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);   // STM32, Ebay OLED
-</pre>
-* [https://github.com/olikraus/u8g2/wiki/fntlistall List of Fonts]
-<pre>
-  u8g2.setFont(u8g2_font_ncenB14_tr);
-</pre>
-==== Hello World Code ====
-<pre>
-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);
-}
-</pre>
 === Other Si5351 Libraries ===