Only co-operate with sim900 which host the GPS software inside

Get GPS information from sim900 by AT command

Only one UART is needed in user application

GPS chip:high performance SIRF4

Channels: 48ch "ALL-in-view" tracking

Sensitivity: -161dbm

Average cold/hot start: 35 sec/<0.6 sec.

Compact size: 11*11*2.2mm

ISM band module for 433Mhz, 868Mhz, 915Mhz

Dimension: 21*13.8*2.6mm / SMT package

AT command control

up to 9600bps data transimission in the open sky by sim20-A

up to 1500meter transmission distance ( approved locally )

Main Chip : CSR BC04

RF Power : 0~4dBm / Antenna : External

Working Distance : 10 meters / Sensitivity : -80 dBm or better

Profile : SPP, HCI

Main Chip : CSR BC05

Antenna : External

Working Distance : 10 meters / Sensitivity : -80 dBm or better

Profile : PBAP(Phone Book), A2DP, HSP, HFP, AVRCP