SD2405 Real-Time Clock Module (Arduino Gadgeteer Compatible)
Low-power RTC with integrated crystal, I2C interface, alarm function, and rechargeable backup battery rated 5–8 years. Compatible with 3.3V and 5V systems.
Low-power RTC with integrated crystal, I2C interface, alarm function, and rechargeable backup battery rated 5–8 years. Compatible with 3.3V and 5V systems.
| Pin | Type |
|---|---|
| VCC | Power |
| GND | Ground |
| SDA | I2C |
| SCL | I2C |
| Battery | Power |
DS3231/DS3232 temperature-compensated RTCs, the budget PCF8523 and DS1307, the Si5351A clock generator (8kHz–160MHz), and bare 16MHz crystals — matched to drift tolerance and supply voltage.
16 MHz Quartz Crystal visual preview16 MHz Quartz Crystal
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Fermion: DS3231 Precise RTC (Breakout) visual previewFermion: DS3231 Precise RTC (Breakout)
10W Super Bright LED - Violet visual previewWS2812/SK6812 NeoPixel strips, rings and Jewels, APA102 DotStar pixels, and plain analog RGB strips — each matched to its protocol and host, not just its connector.
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