Versatile 555 PWM Output Board for Multiple Applications
The Adafruit 555 PWM Output STEMMA is a game-changer for enthusiasts and professionals who need an adjustable PWM square-wave output. Perfect for applications ranging from driving piezo buzzers to generating audio inputs, this fully-assembled 555 timer board is designed to simplify your projects.
The Adafruit 555 PWM Output STEMMA board features selectable ranges of approximately 1.5K~25KHz or 1.5~250Hz adjustable via an onboard trimmer pot. Its DC square wave output, driven by a 74HC1G04 buffer, can sink/source up to 12.5mA. Power the board with a voltage between 3V to 12VDC, with an onboard regulator ensuring a 5V max input to the 555 and buffer. This versatile tool is ideal for anyone requiring precise frequency outputs without the hassle of complex wiring.
Key Features:
Adjustable PWM Output:
- Selectable frequency ranges of 1.5K~25KHz or 1.5~250Hz
- Fine-tune the output using the onboard trimmer pot
Robust Output:
- DC square wave driven by a 74HC1G04 buffer
- Can sink/source up to 12.5mA
Flexible Power Options:
- Operates with 3V to 12VDC power supply
- Onboard regulator pins input to 5V max
Ease of Use:
-
No soldering required; compatible with 2mm pitch, 3-pin STEMMA JST PH cable
-
Optional 0.1" spaced header for power/ground/signal for those who prefer soldering
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