Happy New Year 2018 on ESP32 OLED

I've been playing with ESP8266 for one and a half years now. Recently, I'm upgrading to its bigger brother, the ESP32. I purchased two development boards, one of them is the Heltec WiFi_Kit_32 that comes with a 0.96 inch OLED display.

When 2018 arrives, what's a better way to say Happy New Year than on the ESP32? Therefore, I crawled out of the bed at 4AM, turned on the computer, and started Arduino IDE. Half an hour later, I tweeted this picture:

"Happy New Year 2018" on Heltec WiFi\_Kit\_32 OLED display

The code is simple yet effective. It was modified from u8g2 library full_buffer/HelloWorld example, with the constructor line found on Robot Zero One.

#include <U8g2lib.h>

U8G2_SSD1306_128X64_NONAME_F_SW_I2C u8g2(U8G2_R0, 15, 4, 16);

void setup() {

void loop() {
  u8g2.drawStr(0, 20, "Happy New Year");
  u8g2.drawStr(0, 60, "2018");

I can't wait to explore more about ESP32.

Tags: ESP32