ADC121C021 Sound Sensor for Detecting Noise Knock Vibration or Shock using I2C Piezo Sensor

  • Detect Noise, Knocks, Vibrations, or Shocks
  • 1-Channel 12-Bit Analog to Digital Conversion
  • Single-Ended 0 to 5VDC
  • 188.9K Samples per Second
  • Up to 9 Devices per I2C Port
  • Included Piezo for Knock/Vibration Sensing
$ 22.95
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Description

Detect knocks or vibration in your next security/automation project with this plug in solution.

The included Piezo sensor easily mounts to any flat surface for detecting vibration. Apply it to a window, door, desk, wall, you name it.  As long as the surface is flat it will mount.

Connect the Piezo to the ADC mini module, then connect it to the platform of your choosing (Pi, Arduino, Particle, Omega Onion, etc) using the included I2C cable.  Why buy a platform specific device elsewhere when this will connect to any of your favorite platforms in your desk drawer.  Just purchase an extremely low cost platform to I2C adapter for any platform you wish to use.

Monitoring the signal is extremely fast through the ADC121C021 ADC chip.  Take up to 188.9K samples per second.  Readings are both fast and accurate at 12-bits for this Piezo sensor.

All I2C Mini Modules are designed to operate at 5VDC. Using a convenient 4-Pin plug, devices can be daisy chained onto the I2C Bus, eliminating the need for soldering. Simply plug together the devices you need for your next automation application. Pull-up resistors are included with all NCD master devices. If you are wiring in your own I2C port, on-board 4.7K jumper-selectable pull-up resistors are available for convenience.

nodeLynk Device

This is a nodeLynk device, it will require a nodeLynk Master Adapter for proper operation.  nodeLynk devices plug into Master microprocessors to easily add hardware sensing and control capabilities.

What is nodeLynk?

Chain expansion devices using nodeLynk. Connect a wide variety of accessories to expand the capabilities of a nodeLynk compatible controller.  Use nodeLynk to add Relay Controllers, Sensors, PWM Drivers, Displays, and a wide variety of 4-20mA, 0-10V ADCs and DACs, as well as a wide array of TTL & Isolated GPIO devices.  All nodeLynk devices use I2C communications to chain devices together.  nodeLynk is an easy way to expand functionality without soldering.  nodeLynk allows expansion in seconds so you can focus on your software and firmware development.

What is the nodeLynk I2C Interface?

NCD is the creator of plug and play modular hardware using nodeLynk, which is hardware I2C Interface connector standard.  nodeLynk I2C devices allow you to chain together several devices on the I2C bus, and communicate to each device individually at high speed (subject to the limitations of I2C).  The nodeLynk I2C Interface uses a standard 4-Pin I2C Input and I2C Output connector.  nodeLynk I2C devices communicate 5V I2C data and provides 5V DC power through this connector.  nodeLynk I2C devices use standard I2C communications for all data transport, which is supported by nearly every microcontroller in production today.  The nodeLynk I2C Interface is strictly a 5V standard, which is ideal for transport across longer cables.  nodeLynk I2C devices always include a 6″ (152mm) 4-conductor I2C cable.  nodeLynk I2C Mini Modules always include a 3″ (76mm) 4-conductor I2C cable.  Cables and connectors are available separately for designers who would like to include their own nodeLynk I2C Interface into their designs.

Plug and Play Connectivity

nodeLynk I2C devices will plug in to any available nodeLynk I2C Output.  This includes just about everything we make in the NCD IoT Category, including all NCD IoT devices.  We also manufacture a wide range of I2C adapters that make it easy to plug nodeLynk I2C Devices directly into most computing platforms.  nodeLynk I2C Interface adapters are available for Arduino, Banana Pi, BeagleBone, Bluz, ESP8266, Onion Omega, Particle Photon and Electron, PyCom, Raspberry Pi, 2, 3, and Zero, and Windows.  We are always working to add new platform support for nodeLynk I2C devices.  nodeLynk I2C Interface devices are compatible with just about everything in the microcontroller industry.

Unlimited I2C Expansion

Based on our plug-and-play I2C interface standard, all nodeLynk I2C devices are equipped with a I2C output port, making it easy to expand to a wide variety of sensors, current monitors, relay controllers, PWM controllers, and much more!  We are always designing new expansions for our modular plug-and-play I2C framework.  We are dedicated to building a product line of interconnected devices to simplify all forms of automation.  Re-use or upgrade your hardware in seconds by selecting the modules that best fit your needs, and chaining them together using the included I2C expansion cables!

A Raspberry Pi (above) is connected to a nodeLynk Master adapter.  nodeLynk devices are chained to the Raspberry Pi nodeLynk Master using I2C communications.  Each nodeLynk device must have a different I2C address for proper operation of the chain.  Note that some nodeLynk I2C devices have a fixed address while others allow configuration of the address across a limited range of addresses.

Powering nodeLynk I2C Interface Devices

Some nodeLynk I2C devices require a external power supply, others may be powered through the 4-Pin I2C bus connector at 5VDC, and other devices are jumper selectable between external and I2C bus power.  All I2C mini modules are powered through the 5V I2C bus connector, greatly simplifying connectivity.

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