1. Project Wisdom Stone Networking using MiWi Done By: Amnon Balanov & Yosef Solomon Supervisor: Boaz Mizrachi Project ID: d02310

2. Project Wisdom Stone Small sensors, with very low power consumption Planted under roads Performing monitoring of road maintenance status

3. Project Wisdom Stone Based on a PIC24 micro-processor Networking (two alternatives): o 2.4 GHz enabled by a MRF24J40 IEEE 802.15.4 Tx/Rx. o 433 MHz enabled by a MRF49XA Tx/Rx. Networking will run MiWi (Microchip propriatory S/W stack) ***All components are made by Microchip.

4. Project Goals The design and implementation of a networking S/W stack who’s functions will be: 1. Transmissions of aquired data to Hub unit 2. Inter-Sensor Communications 3. WAKE interrupts from sleep - for sensing sessions

5. System I/O Tx/Rx  Communications with the Hub unit  Communications with other units microSD memory chip  Stores aquired data PIC interrupts  Wake/Transmission interrupts

6. Extra Board PICtail Evaluation Board – Explorer 16 MicroCTRL - PIC24FJ256GB110 General HW Scheme Sensor Array Networking MRFJ40MB OR MRF49XA MEM- Flash & SRAM MEM- microSD SPI

7. General SW Routine WakeSense Process & Compress TransmitSleep

8. System Speeds MRF24J40  250 kbps transmission speed MRF49XA  115.2 kbps digital transmission speed  256 kbps analog transmission speed PIC24FJ256GB110  computational power of 16 MIPS  sampling rate of 500 ksps microSD  reads and writes are in the MB/s range

9. Estimated Schedule Software Development (8 weeks- two Parts 4 and 4)- Writing code for: 1. Networking on MiWi (4 weeks) 2. A Simple Scheduler for the PIC (2 weeks) 3. microSD protocol enabling memory reads (2 weeks) *The two parts are micro-architecture and API development, and will each be four weeks long. ***After the first part of writing the micro-architecture we will hold the midterm presentation. Debugging O/B (2 weeks)- Testing all of the main functions on the Explorer 16 Development Board with MRF24J40MB PICtail extension Outdoors Testing (1 week)-Testing the network capabilities under simulated conditions. Est. Total: 11 weeks.

10. Estimated Price List Component NamePicturePrice Explorer 16 Development Board (Two Needed) 129.99 USD Total-259.98 USD PIC24FJ256GB110 (Two Needed) (Prices are for different packages- 4 possibilities ) 6.48-7.01 USD Total-12.96-14.02 USD MRF24J40MB – with PICtail connection (Two Needed) 29.99 USD Total-59.98 USD MRF49XA – with PICtail connection Part Number: AC164137-1 (Two Needed) 39.99 USD Total-79.98 USD Zena Wireless Adapter 49.95 USD Total TOTAL SUM: 462.85 – 463.91