SquareMote R2.5 (w/ Temperature Humidity sensor)

SquareMote R2.5 (w/ Temperature Humidity sensor)
SquareMote R2.5 (w/ Temperature Humidity sensor) SquareMote R2.5 (w/ Temperature Humidity sensor) SquareMote R2.5 (w/ Temperature Humidity sensor) SquareMote R2.5 (w/ Temperature Humidity sensor) SquareMote R2.5 (w/ Temperature Humidity sensor) SquareMote R2.5 (w/ Temperature Humidity sensor) SquareMote R2.5 (w/ Temperature Humidity sensor)
Product Code: SQM_R2_5
Availability: 2
Price: $25.00

Available Options


Transceiver Module:

Battery Holder:

R2.5 Enclosure:


Extra LEDs:



Buttons:

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Mote2 (pronounsed as SquareMote) is an ultra-low-power battery powered arduino like remote sensor that has as much devices already on board as possible to make it easy to deploy as an independent sensor, but also have ability to expand its functionality with add-on “shields”.

These are main features of the device:

  • Onboard 3.3V voltage regulator allows device to be powered by external power source of up to 16V
  • 3 Position physical switch that allows to bypass voltage regulator for low voltage source (3V coin cell), use normal power source with voltage regulator or turn power off
  • ATMega328p processor running at 8 Mhz for low power (can  work under 2V)
  • Onboard 16Mhz resonator which allows MCU to also work at 16Mhz when low power operation not required
  • Onboard high precision Temperature and Humidity Sensor (Si7021)
  • Onboard LED
  • Small size (5×5 cm)

Optional configuration:

  • Onboard 3V replaceable CR2032 battery
  • Plug In RFM radio transceiver (RFM69W or RFM12B working at 433 or 915Mhz)
  • Six Onboard buttons (each capable of waking up microprocessor via hardware interrupt)
  • Two 14 pin headers that allow access to all AVR pins
  • External power header

You can find more information about it here.

About Options and ordering

You can order just bare board with minimum of pre-soldered SMD components such as ATMega328p, 16Mhz resonator, Voltage regulator and all essential parts to run your sketch as well as one LED (yellow or orange). 

In addition most people would want to have a radio transceiver (RFM12b or RFM69W) and its available as plug-in module, no soldering required.  Both available in either 915Mhz or 433Mhz.  If you building an external sensor for your Xronos 2.x clock, please choose RFM12b module. RFM69W has better range, but it's not compatible with RFM12b receiver found in Xronos Clock V2

One of best new features in R2.5 version is built in Si7021 temperature and humidity sensor. If you are building weather sensor, you'll just need to add wireless plug-in module and your choise of battery.

Motecan be powered by a 3V coin cell battery or a 2xAAA batteries.  Coin cell is recommended for warm climates or indoors as it should last almost a year in these conditions.  In extreme cold weather or for long operating times we recommend 2xAAA battery holder.
Coin cell battery holder will be soldered, while 2xAAA battery holder plugs into the board via JST type connector. Batteries not included.
If you choose to power Motewith 2xAAA batteries please only use alkaline type, never use rechargeable as they won't provide enough power and also might get damaged if voltage drops too low.

Enclosure:

Optional laser cut acrylic enclosure can be added to the order. Enclosure will accommodate Motewith 2xAAA battery holder.  Mounting screws included, requires assembly.
Please note that it's not water tight and should be placed outside without some kind of rain/snow cover.

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