A small portable device featuring timer, clock, and calendar functions, equipped with a simple and functional interface and a truly long battery life.

There’s a verse in the Atharva Veda that goes: “Kalo ha sarvasyesvaro yaḥ pitasit prajapateḥ / tenesitaṃ tena jataṃ tad u tasmin pratisṭhitam” or “Time is truly the god of all; he was the father of ...

You can buy all kinds of conventional clocks that have hands and numbers for easy reading. Or, like [Fabio Ricci], you could build yourself something a little more esoteric, like this neat shadow ...

Developed by Kaled Souky in 2025, the vs1053_avr_renesas_uno library is an Arduino port of the vs1053_SdFat library, originally created by Michael P. Flaga in 2012. The vs1053_avr_renesas_uno library ...

or located under the following github pages github.io. Additionally in combination with the technical datasheet of microchip PCF8574-Datasheet. PCF8574_I2C::PCF8574 pcf{0x20, &Wire}; void setup() { ...