Difference between revisions of "VFO-001"

Revision as of 12:44, 30 October 2020

DD1306 OLED Display
- I2C Interface
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
Extruded Aluminum Enclosure Box - 94mm x 83mm x 30mm

3.3V operation works without level shifters for I2C
- OLED runs from 3.3V
- 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
Download via serial
Programmed via Arduino IDE

@@ Line 46: / Line 46: @@
 [[File:OLED128x32.PNG]]
-==== 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>
 == Libraries/Example Code ==