My Cart:

0 item(s) - £0.00
You have no items in your shopping cart.

4686_large_h2ohno_water_alarm

More Views

H2OhNo! ATtiny Dev Board / Water Alarm

The H2OhNo! is a water sensor alarm kit that you build yourself. When water is detected across the sense pins an alarm goes off and an LED starts blinking.

Availability: Out of stock

Code1+
4686 £7.20
(£8.64 incl VAT)

The H2OhNo! is a water sensor alarm kit that you build yourself. When water is detected across the sense pins an alarm goes off and an LED starts blinking. If you've ever had a water heater explode or tried to create submersible electronics you know how important it is to be able to detect when water is around!

Underneath the default function of H2OhNo! is a small but powerful development board for the ATtiny85 microcontroller. The board includes a buzzer, LED, a coin cell battery, and the ability to detect analogue and digital sensors. This mixture of parts creates a great low-cost tool to learn how to program and sense things.

This board can be re-programmed to be an Annoy-A-Tron (originally made by Think Geek). Please annoy respectfully, otherwise your board may get demolished.

Features:

  • Water sensor alarm kit.
  • Easy to assemble through-hole soldering kit.

Contents:

  • 1 x H2OhNo! PCB.
  • 1 x ATtiny85 (Pre-Programmed).
  • 1 x 20mm Coin Cell Battery Holder.
  • 1 x CR2032 Coin Cell Battery.
  • 1 x Slide Switch.
  • 1 x 8-Pin DIP Socket.
  • 1 x Super Bright Red LED.
  • 2 x Jumper Wires.
  • 1 x 0.1uF Capacitor.

Requires:

Resources:

SparkFun Stock Code:

  • DEV-12069.

Questions:

There are no product questions yet.

Need a question answering before you buy? Then ask our technical team.

Ask Your Question

* Required Fields

Related Products
  • Quiz Buzzer Project Kit
    Excl. VAT: £5.45 Incl. VAT: £6.54 As low as: £4.50

    Quiz Buzzer Project Kit

    Beat your Quiz opponent to the buzzer first. This Quiz Buzzer Project ...

  • Programmable Timer Kit
    Excl. VAT: £3.75 Incl. VAT: £4.50 As low as: £2.88

    Programmable Timer Kit

    Solder this board together, choose a microcontroller and youre ready t...

  • UT20B Multimeter
    Excl. VAT: £4.55 Incl. VAT: £5.46

    UT20B Multimeter

    The UT20B is a small pocket multimeter that measures DC voltage, AC vo...