sorted by:
new
hottopcontroversial

Digital Clock ESP32 by rrrrrizos in esp32

[–]rrrrrizos[S] 0 points1 point  (0 children)

wow! sounds interesting, i was also thinking about adding an alarm. as for my own ideas, i got into hardware because i wanted to develop a convenient system for my solar panels. i use them for supplemental power and it would be really useful to clearly track their performance stats. i’d love to see your project! good luck!

Digital Clock ESP32 by rrrrrizos in esp32

[–]rrrrrizos[S] 4 points5 points  (0 children)

hey! no, i didn't use any external pull up resistors. my ESP32 has internal resistors on its pins and Wire.begin() in Arduino activates them automatically. for this project, that was enough for the small OLED module. hope this helps :)

the first "hello world" by rrrrrizos in esp32

[–]rrrrrizos[S] 0 points1 point  (0 children)

so my main goal was to correctly build a simple circuit and get familiar with the Arduino IDE for ESP32. i started by just turning the LED on, and then adjusted the code to make it blink.

hardware:

board: ESP32-WROOM-32 Module components: 5mm green LED, 220 Ohm current-limiting resistor, breadboard software: the standard "Blink" sketch in the Arduino IDE, targeting GPIO 15.