P10 Pin → Arduino Pin nOE → D9 (Output Enable, active low) A → D6 (Row select A) B → D7 (Row select B) CLK → D13 (SPI Clock) SCLK → D8 (Shift clock) R_DATA → D11 (SPI MOSI) ...

Unlock the secret to storing data on the ESP32 without using EEPROM. In this video, you'll learn how to keep your variables alive even after your microcontroller goes to sleep or reboots. We'll ...

Every ham radio shack needs a clock; ideally one with operator-friendly features like multiple time zones and more. [cburns42] found that most solutions relied too much on an internet connection for ...

A lot of the time, we must assign our own meaning to the numbers on the clock. 8:30 AM is work kicking off, 12 PM is lunch, and 5PM is when the corporate chains release us to what’s left of the day.

[..] The real-time clock (RTC), the RTC backup registers, and the backup SRAM (BKP SRAM) can be powered from the VBAT voltage when the main VDD supply is powered off. To retain the content of the RTC ...