Its pull-up pads (R1, R2) can stay empty, since the capture board's bus already has them.
The DS3231 chip is the one I run; this exact board I have not.
ESP-KVM is free, open-source firmware that turns an ESP32-P4 board into an IP-KVM: another computer's screen, keyboard and mouse in your browser, from the BIOS up. The ChronoDot v2 is an optional extra: a battery-backed clock that keeps the time across a power cut. What it does → Try the demo →
Clock (optional)
ChronoDot v2
Macetech's round DS3231SN board, with a CR1632 holder and no charging circuit, so a plain cell is fine.
| Status | Run on hardware |
|---|---|
| Chip | DS3231SN, at 0x68 |
| Wiring | VCC to 3V3, GND, SDA and SCL to the capture board's I2C bus |
| Battery | CR1632 |
| Setting | found by itself; Settings → System → Clock |