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12mm Coin Cell Breakout Board
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A simple breakout board with a CR1220 coin cell battery holder pre-soldered and broken out to 0.1″ pitch pins. Ideal for powering very low-current projects o...
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A simple breakout board with a CR1220 coin cell battery holder pre-soldered and broken out to 0.1″ pitch pins. Ideal for powering very low-current projects or providing battery backup for a real-time clock (RTC) module.
Comes fully assembled and tested, with a stick of 0.1″ header included so you can solder it on and plug directly into a breadboard.
Key Features
- CR1220 Holder – Accepts standard 12 mm CR1220 coin cell batteries
- Breadboard-Friendly – 0.1″ pitch header pins (included, requires soldering)
- Pre-Assembled – Battery holder soldered and tested, ready to use
- Compact – Minimal footprint for space-constrained projects
Ideal For
- Battery backup for RTC modules (DS1307, DS3231, etc.)
- Low-power wearable electronics and LED throwies
- Powering small microcontroller projects during prototyping
Package Contents
- 1× 12 mm Coin Cell Breakout Board (with CR1220 holder)
- 1× 0.1″ header strip
Note: CR1220 battery not included. Also available with an on/off switch.
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- RTC
- A Real-Time Clock keeps track of time even when the main processor is asleep or powered down, usually with a small backup battery. It matters for data logging and tracking projects that need accurate timestamps.
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