CoilCell is a thin planar PCB coil built on a multi-layered PCB with an integrated driver that simplifies magnetic control. In this post, we’ll explore its circuitry and how it functions.
CoilCell is a PCB-based planar coil that generate a magnetic field that can interact with magnets. It is available in two configurations:
With its DRV8837 H-Bridge driver, CoilCell allows control of current flow, determining both magnetic polarity and strength via the 2 input signals.
Unlike the CoilPad (which requires an external driver) this CoilCell module has an integrated DRV8837 H-Bridge driver. It enables bidirectional current flow, allowing the coil to generate a north or south magnetic field:
IN1 = VCC/PWM
, IN2 = GND
IN1 = GND
, IN2 = VCC/PWM
IN1 = GND
, IN2 = GND
For added clarity, an onboard LED provides visual feedback, indicating the polarity of the output.
These safety features help prevent damage from overheating or incorrect wiring, ensuring reliable operation.
To start using CoilCell, follow these steps:
Solder the power and input pins to your microcontroller.
The VCC must be connected to a maximum supply voltage of 5V.
If using multiple CoilCells, the side pads allow for easy daisy-chaining to share power and control signals across multiple units.
To simplify programming we had a CoilCell library with easy to use functions.
Use our CodeCell module which is designed to be pin-to-pin compatible with CoilCell. With CodeCell, you can add wireless control and interactive sensing, unlocking new possibilities for your projects.
With the CoilCell module you have everything you need to start experimenting and build your own fun magnetic actuators! Check out the CoilCell Schematics here to explore its circuit design and start integrating it into your next project!
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