Adafruit is open and shipping! Let's build back better, together!
0

EYE on NPI: CUI CPS Series Sirens #Siren #EyeOnNPI @digikey

This week’s EYE ON NPI (video) is a topical one – here at Adafruit we’ve been supplying essential services and goods for engineers, makers, doctors, and students all working on designing products and techniques to help folks with COVID-19. This is an amazing time to see so many talented and driven folks around the world all putting their talents to work!

Part of that design work is to have the device alarm a caretaker that something went wrong. For example, if you are designing a pulse oximeter or heart rate detector, you’ll want to sound an alarm when the BPM or SpO2 dip below a safety threshold. You’ll also need an alarm when power is lost, say if someone accidentally unplugged the power cord. When building DIY and IoT projects, a simple 3V buzzer or piezo might be enough – to let you know when the plants need watering, or if there might be rain tomorrow – but this is not enough for an industrial or safety device, especially one being used in a loud environment.

Digi-key

The new CPS series of sirens from CUI is a nice and easy way to add a very loud alarm, and comes in a few different shapes, styles and output effects. They’re all about 100 dB, as loud as a jackhammer or motorcycle. Inside, they’re buzzer/piezos – but really large ones, that are driven by 12V DC. What I like about these is that you don’t need to generate the audio waveform from a microcontroller: they start warbling or beeping the moment power is applied. Why is this good? Well you probably have a nice speaker output system in your design, whether its a DAC, PWM or I2S output, and that’s good for nice harmonic tones, verbal alerts or even sound clips – all of those kinds of alarm designs are covered by standards like ISO IEC 60601-1-8. But what happens when you have a power failure or a software interlock failure? You may not be able to depend on your software system. These can be controlled or powered by solid-state technologies that don’t have a clock or software, as a backup alarm.

CUI Devices’ CPS series sirens utilize piezo technology with a built-in driving circuit to offer designers a range of variable tones and sounds, including hi-lo, warble, and more. The CPS models feature sound pressure levels (SPLs) up to 120 dB as well as through-hole, panel mount, and wire lead mounting styles. These piezo sirens can carry operating temperatures from -30°C to +85°C, making them well-suited for security systems, medical devices, harsh environments, and industrial applications.

  • Piezo technology with built-in driving circuit
  • SPLs up to 120 dB
  • Multiple mounting configurations
  • Hi-lo, warble, sweeping, one tone, and six tone offerings
  • Operating temperatures: -30°C to +85°C

There’s a few in this series, from one that looks like a little horn, to an enclosed box. If we had to pick one to try out, we’d say the CPS-7560 (a.k.a 102-CPS-7560-110L450-ND) is the cutest one, with a panel mount style that evokes an arcade button. This design looks super easy to mount – you just need a round hole in your panel, and is unobtrusive.

 


Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Join 26,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/

CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


Maker Business — To make it through a tough business cycle, layoffs should be a last resort

Wearables — Pipe cleaner purposes

Electronics — Diode Test Current

Python for Microcontrollers — Python on Microcontrollers Newsletter: ESP32-S2 low power, GUIs and more! #Python #Adafruit #CircuitPython @micropython @ThePSF

Adafruit IoT Monthly — The Ultimate Bird Feeder, Adafruit IO UI Refresh, and more!

Microsoft MakeCode — Making a Smart LEGO Ferris Wheel!

EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — New Products 11/25/2020 Featuring #Adafruit #SGP40 #AirQuality Sensor Breakout – VOC – STEMMA QT @adafruit #newproducts

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.