The Sensor Network Museumtm - G-Nodes
Manufacturer documentation: SOWNet G-Node
Ultra low power wireless sensor module based on a Texas Instruments MSP430F2418 microcontroller and Texas Instruments CC1101 packet radio.
Features
- TI MSP430F2418 microcontroller at up to 12 MHz (16 MHz for rev 1.3 and later)
- 8 KB SRAM (+ 8 KB external SRAM for rev 1.3 and later)
- 116 KB flash program memory + 1 MB external flash storage
- 0.8 kbps - 500 kbps TI CC1101 packet based wireless transceiver at 868 MHz
- Temperature sensor and battery voltage readout integrated into microcontroller
- Pushbutton on interrupt line
- 3 leds for debugging or state checking
- Ultra-low current consumption
- Fast wakeup from sleep (<2usec)
- Programming and interface via USB
- 10-pin expansion port
- 19x60 mm
Power Consumption - Typical Operation
| G-Node a | |
|---|---|
| Power supply | 2xAAA cells or USB |
| Minimum Vin | 1.8 V (max 4 MHz) |
| uC sleep with timer on | 4uA@2.2V (9uW) or less in rev 1.3 and later b |
| uC active, radio off | 3.0mA@2.2V (6.6mW) uC at 8 MHz |
| uC active, radio idle listening/RX | 20mA@2.2V (44mW) uC at 8 MHz |
| uC active, radio TX 0dBm | 20mA@2.2V (44mW) uC at 8 MHz |
| uC active, radio TX +10dBm | 33mA@2.2V (73mW) uC at 8 MHz |
| Max. Power (uC active, radio TX, external flash write) | 45mA@2.5V (113mW) uC at 8 MHz |
| Max. Power (uC active, radio TX, external flash write) | 48mA@3.6V (173mW) uC at 16 MHz |
a typical datasheet values as reported for the whole system when not plugged into USB
b wakeup from internal timer or external interrupt only