SparkFun H2OhNo! ATtiny Dev Board Water Alarm

Various
Ratings
Delivered between Sat, 19.7. and Wed, 23.7.
Only 1 piece in stock at supplier
Free shipping starting at 50.–

Product details

The H2OhNo! is a DIY water sensor alarm kit. When water is detected by the sensor pins, an alarm is triggered and an LED starts to blink. If you've ever had a water heater explode or attempted to create submersible electronics, you know how important it is to be able to detect when water is nearby!

At the core of the H2OhNo! is a small but powerful development board for the ATtiny85 microcontroller. The board includes a buzzer, an LED, a coin cell battery holder, and the ability to use both analog and digital sensors. This combination of components creates a great, cost-effective tool for learning how to program and perceive things!

This board can also be reprogrammed to become an Annoy-A-Tron (originally from Think Geek). Please annoy respectfully, or your board may be torn apart.

Note: Please read the guide below for helpful tips and assembly instructions.

Kit includes:

* 1x H2OhNo! PCB
* 1x ATtiny85 (pre-programmed)
* 1x 20mm coin cell battery holder
* 1x CR2032 coin cell battery
* 1x slide switch
* 1x 2kHz piezo buzzer
* 1x 8-pin DIP socket
* 1x super bright red LED
* 2x jumper wires
* 1x 0.1uF capacitor.

Key specifications

Scope of delivery
1x 20mm Coin Cell Battery Holder, 1x 2kHz piezo buzzer, 1x 8-pin DIP socket, 1x ATtiny85 (pre-programmed), 1x Capacitor 0.1uF, 1x CR2032 Coin Cell Battery, 1x H2OhNo! PCB, 1x Slide Switch, 2x Jumper Wire, Super Bright Red LED
Compatible hardware
Various
Item number
5998829

General information

Manufacturer
SparkFun
Category
Electronics modules
Manufacturer no.
DEV-12069
Release date
5.12.2013

Compatibility

Compatible hardware
Various

Electronic module properties

Module type
Various

Voluntary climate contribution

CO₂-Emission
Climate contribution

Scope of delivery

Scope of delivery
1x 20mm Coin Cell Battery Holder, 1x 2kHz piezo buzzer, 1x 8-pin DIP socket, 1x ATtiny85 (pre-programmed), 1x Capacitor 0.1uF, 1x CR2032 Coin Cell Battery, 1x H2OhNo! PCB, 1x Slide Switch, 2x Jumper Wire, Super Bright Red LED

Package dimensions

Length
15 cm
Width
7.50 cm
Height
1 cm
Weight
16 g

30-day right of return
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Electronics modules» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • SparkFun
    Not enough data
  • 1.Purecrea
    0 %
  • 1.Tru Components
    0 %
  • 3.Whadda
    0.1 %
  • 4.Adafruit
    0.2 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • SparkFun
    Not enough data
  • 1.Sonoff
    0 days
  • Adafruit
    Not enough data
  • Purecrea
    Not enough data
  • RND Components
    Not enough data

Return rate

How often is a product of this brand in the «Electronics modules» category returned?

Source: Digitec Galaxus
  • SparkFun
    Not enough data
  • 1.Adafruit
    0 %
  • 2.Whadda
    0.6 %
  • 3.Purecrea
    1 %
  • 3.Sonoff
    1 %
Source: Digitec Galaxus