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. Features: Adjustable PWM square-wave output Frequency ranges: 1.5K25KHz or 1.5250Hz DC square wave driven by 74HC1G04 buffer Can sink/source up to 12.5mA Operates with 3V to 12VDC power supply Onboard trimmer pot for frequency tuning No soldering required, compatible with STEMMA JST PH cables RoHS compliant Package Include: 1 x Adafruit 555 PWM Output STEMMA - 1.5K~25 KHz or 1.5~250 Hz - STEMMA JST PH 2mm
Specifications
| Adjustable PWM output | Two frequency ranges |
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| Buffered output | 74HC1G04 buffer, capable of sinking/sourcing up to 12.5mA |
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| Easy to use | No soldering required, works with 3V to 12VDC power supply |
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| Fine-tuning | Onboard trimmer pot for frequency adjustment |
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| Versatile applications | Ideal for audio signals, piezo buzzers, and modulating IR signals |
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| Item Type: | Development Board |
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| IC Chip | TL555I |
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| Frequency Range: | 1.5K25KHz to 1.5250Hz |
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| Power Supply Voltage (V) | 3V to 12VDC |
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| Compatibility: | STEMMA JST PH cables |
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| Shipping Weight | 0.01 kg |
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| Shipping Dimensions | 13 × 7 × 2 cm |
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