Homemade DS3231 Module

Figure 1: Homemade version

In the previous page, I was able to program a pre-made DS3231 real time clock module. In this page, I've created the module and programmed it from scratch.

Figure 2: Homemade version vs pre-made version

Schematic & PCB Design

The images below show the schematic capture and the PCB design that I did for the ic. This schematic was heavily influenced by Circuit Digest, but with other components rearranged as well as the PCB design. With the PCB, it's a four layer design, with one layer as GND, while the other layer as VCC. The software that was used was EasyEDA.

Figure 3a: Schematic Capture

Figure 3b: PCB Design

Outcome

The IC manged to display the real time, but that only happened in the second attempt, as the first attempt didn't work