Seeeduino Stalker v2
Weight: 32 g
$44.25
AUD
The Seeeduino Stalker is an extensible Wireless Sensor Network node, with native data logging features and a modular design.
It can be conveniently used as sensor hub or integrated data collector for monitoring, tracking and remote data-logging applications. A UartSbee is required to program the Stalker.
Features
- Arduino compatible, based on Seeeduino
- Wide operating temperature -40C to +85C
- Full on board Real Time Clock (RTC) functionality RX8025 with internal crystal oscillator. No battery needed, this RTC is powered to keep time in its off state by a large capacitor.
- Lithium battery Charging circuit CN3083 with a power input for a Solar panel or other DC power. Recommended input voltage range of 4.6V to 6V, as we have a protect diode in series.
Micro SD card socket (micro SD card not included) - I2C Digital Temperature Sensor: Accuracy: 0.5C (-25C to +85C)
Self isolating I2C when powered off. Normally an Arduino slave on an I2C bus when powered off will short the clock and data signals to ground disabling the entire I2C bus. This circuit will self isolate and allow the other devices to continue communicating. - User defined LED
- XBee series socket (2*10 pin 2.0mm pitch, same as Xbee) with an additional break out footprint 0.10 inch pitch.
- Can be woken up from a low power sleep state by the RTC at a predefined time.
- ISP socket
- Power input reverse polarity protection diode.
- Cut-able solder jumper
- Uart
Application Ideas
- Autonomous vehicle
- Solar powered weather station
- Data collecting ocean buoy
Documents
Please visit Seeed's wiki page for more info about this product. It will be appreciated if you can help us improve the documents, add more demo code or tutorials. For technical support, please post your questions to our Seeed's forum.
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Comments
5 volt v 3.3 volts
A little problem that I discovered with the 2.1 version ...
If you run the board off a 5 volt supply - e.g. USB. Then run it off 3.3 volt supply, the RTC capacitor is still charged with 5 volts, communication with the RTC fails due to inappropriate I2C voltage levels. Discharge the capacitor and all is good ...
Handy Hints
I brought some of these boards and they are great,
Please note that the IO on this board is 0 - 3.3V level only, not 0 - 5V level.
When connecting to the computer, ensure you have the board selected as Arduino Pro/Pro mini 8Mhz, 3.3V with ATmega 328
(If you don't, the example code serial monitor output will not work properly)
Hopefully this helps as i must admit it took me a little while to work out what i was doing wrong as most of these details are in the fine print.
Best of luck :)
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