EcoMini
EcoMini is the code name for the 9×12 mm2 version of the Eco node. It is possibly the world’s smallest, self-contained motion-sensing node developed to date. It can be programmed to work as either a BLE master or slave. The small size makes it suitable for a wide variety of embedded and IoT (Internet of Things) applications.
Technical Specification
| Eco Mini | |
|---|---|
| PCB size | 9x12mm2 |
| MCU | TI CC2541 (SiP) |
| On-chip flash | 256 KB |
| On-chip RAM (Xdata) | 8 KB |
| Antenna | chip antenna |
| Accelerometer | 9 DoF inertial sensor (acc, gyro, compass) |
| RTC | RTC (over true I2C) |
| Magnetic Switch | magnetic switch |
| I/O expansion connector | PCB edge connector, to be changed to Hirose |
| Battery | lithium coin (3V), lithium polymer (4.2V), up to 5VDC |
| regulator | step-down with bypass |
Development Resources
We recommend the following tools for development. For more information, see the development page.
Data Sheets
- TI CC2541 (SiP) (BLE RF+MCU)
- 9 DoF inertial sensor (acc, gyro, compass)
- RTC (over true I2C)
Pinout diagram
| 1. DC | 2. DD |
| 3. GND1 | 4. VCC1 |
| 5. RESET | 6. GND |
| 7. RxD | 8. TxD |
SDK
- TI BLE software stack (requires IAR Embedded Workbench and CC Debugger)
- EPL Compiler Binding Layer (requires SDCC, Python 2.7.x, BLE dongle)
BLE Client Tools
- BTools (TI, requires Windows and BLE dongle)
- LightBlue (iOS or Android, requires ≥ iPhone 4S or iPad 3, or Android 4.2 with hardware Bluetooth 4.0)