datasheet module sim908 cua at_com

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Coppyright AT-COM - www.at-sky.com.vn

General Purpose GSM/GPS SIM908

User Manual

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1.Gii thiu:

o SIM908 module l mt Module Quad-Band GSM / GPRS hon chnh kt hp cng ngh GPS dn ng v tinh. Thit k nh gn tch hp GPRS v GPS trong mt gi SMT s tit kim ng k thi gian v chi ph cho khch hng pht trin cc ng dng GPS c kch hot.

o Vi mt giao din tiu chun cng nghip v chc nng GPS, n cho php theo di lin tc bt k v tr no v bt c lc no vi tn hiu c bo m tuyt i nhng ch c kch thc: 30 * 30 * 3.2mm.

o GSM/GPS SIM908 l mt sn phm do AT-COM pht trin nhm gip ngi s dng c th khai thc cc tnh nng ca Sim908 mt cch d dng. Bn cnh vi kch thc nh gn v ng giao tip d liu tin dng, GSM/GPS SIM908 s mang n cho bn nhng cm hng thit k hin i v tinh t nht.

Hnh 1: Module GSM/GPS SIM908

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1.1 c im k thut ca GSM/GPS SIM908

Module GSM/GPS SIM908:

Quad-Band 850/900/1800/1900MHz

GPRS multi-slot class 10

GPRS class 8/10: max. 85.6 kbps (downlink)

GPS: 42-channel, GPS L1 C/A code, High-performance STE engine

Control via AT commands

in p hot ng:

Ngun xung dng IC LM2596 cho dng ti 3A, tn s p ng 150Khz in p ng vo: 7-12V DC in p ng ra : 4.5V, 4V, 3.3V in p ng ra c la chn thng qua mt jumper select trn mch

Giao tip my tnh:

Cng USB 2.0 kiu B cho php SIM908 giao tip my tnh Nt nhn chn cng GSM hoc GPS giao tip vi my tnh S dng IC FT232RL chuyn i USB TO UART

Tch hp kt ni anten ngoi cho GSM, GPS

Tch hp SIM Card trn mch

Tch hp Transistor kch ngun v led Netlight

Nt nhn ON/OFF: dng bt/tt ngun cung cp cho SIM908

Led PWR: led hin th ngun

Led NET: led hin th sng ca SIM908

Led TX, RX: hin th d liu truyn nhn khi giao tip qua cng USB

Cng kt ni ngoi 16 chn: ON/OFF, SPK1N, SPK1P, MIC1N, MIC1P, VCHG, TEMP-BAT, SDA, SCL, PWM3, PWM2, PWM1, ADC,

VRTC, STATUS, LED

Cng kt ni ngoi 8 chn giao tip RS232 cng GSM: DTR, DCD, RI, CTS, RTS, TX, RX, GND

Cng kt ni ngoi 3 chn giao tip UART cng GPS: RX-GPS, TX-GPS, GND

Kch thc : 80x50 mm

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1.2 ng dng:

Sim908 l module sim tch hp GPRS v GPS do SimCom pht trin s gip cho ngi s dng tit kim c rt nhiu thi gian v chi ph cho vic s dng. N c kh nng theo di lin tc bt k v tr no vi tn hiu cc k n nh v chnh xc. Vi nhng li th ni tri nh vy, AT-COM xin gii thiu vi cc bn mt ng dng n gin trn nn GPS.

2. Hng dn kt ni:

Hnh 2: S khi GSM/GPS SIM908

3. Hng dn s dng:

Module SIM908 hot ng vi mc in p t 3.2V 4.8V, yu cu dng cung cp 2A. Simcom khuyn nn s dng mch ngun xung 3A dng IC n p LM2596.

bt/tt GSM/GPS SIM908 ta nhn nt khi ng khong 1s, lc ny n Led status s sng, sau nhp nhy vi tn sut nhanh bo hiu SIM908 ang khi ng v tm mng. Sau Led status nhp nhy chm li bo hiu SIM908 hot ng bnh thng.

Vi cc ng giao tip c thit k sao cho thun tin nht cho ngi s dng, bn c th t pht trin tng v lm ra mt sn phm hin i nhng cng rt thit thc vi cuc sng

test SIM908 vi my vi tnh ta cn mt mch giao tip my tnh truyn nhn d liu t cng UART ca SIM908 vi bt k mt phn mm Terminal no trn my vi tnh.

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Hnh 3: S kt ni vi my tnh

Sau khi kt ni ta s dng phn mm Terminal.exe giao tip my tnh vi GSM/GPS SIM908

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Cc bc test SMS/GPRS GSM/GPS SIM908:

Bc 1: Khi ng SIM908

- Sau khi khi ng SIM908 ta s nhn thy trn mn hnh nh sau

- Mn hnh hin 4 dng nh trn tc l SIM908 khi ng hon tt

Bc 2: Test kim tra ng truyn

- kim tra ng truyn ta gi lnh AT cho SIM908 ta g t bn phm lnh AT v nhn enter. Lc trn mn hnh s hin th:

- Nu nhn c thng bo OK tc l ng truyn ang truyn tt.

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Bc 3: Test nhn cuc gi:

- Sau khi test gi AT thnh cng ta dng mt in thoi khc gi vo s thu bao trn GSM/GPS SIM908 test nhn cuc gi. SIM908 hot ng tt s tr v mn hnh nh sau:

Bc 4: Test nhn tin nhn

u tin ta phi cu hnh tin nhn ca SIM908 vi nh dng l kiu text

Cu trc lnh nh sau: AT+CMGF=1 G Enter

By gi ta s dng mt in thoi khc gi mt tin nhn vo SIM908. Nu SIM908 hot ng tt s nhn chui nh sau:

Bc 5: Test gi

- Bc tip theo l test cho sim thc hin cuc gi ta dng lnh:

C php lnh: ATDxxxxxxxxxx; G Enter (xxxxxxxxxxx: l s in thoi cn gi). Nu mun kt thc cuc gi dng lnh ATH kt thc cuc gi.

C php lnh: ATH G Enter

Bc 6: Test nhn tin

- test nhn tin ta dng lnh

AT+CMGS=xxxxxxxxxxx (xxxxxxxxxxx: l s in thoi cn nhn tin)

>ni dung tin nhn

- Sau khi nhp ni dung tin nhn v cui cng l t hp phm Ctrl+z sim hiu v gi tin nhn i. Sau y l cc thao tc trn mn hnh:

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- Sim tr v OK tc l gi thnh cng tin nhn.

Tp lnh AT dnh cho GPS

SimCom cug cp cho chng ta h thng cc lnh AT Command iu

khin GPS, nhin v quan trng l kh nng p dng lnh vo tng ng dng m

chng ta mong mun.

Sao y l mt s lnh AT Command cc bn c th tham kho:

1.1 Tng quan:

Command Description

AT+CGPSPWR iu khin ngun GPS

AT+CGPSRST t li ch GPS(Hot/Warm/Cold)

AT+CGPSINF nhn thng tin v tr GPS hin ti

AT+CGPSOUT iu khin d liu ra NMEA GPS

AT+CGPSSTATUS Tnh trng GPS

AT+CGPSIPR set tc baudrate

1.2 AT+CGPSPWR:

a. Lnh test:

AT+CGPSPWR=?

Phn hi: +CGPSPWR:(danh sch cc mode)

b. Lnh c:

AT+CGPSPWR?

Phn hi: +CGPSPWR:[mode]

c. Lnh ghi:

AT+CGPSPWR=[mode]

[mode]:0 tt ngun GPS

[mode]:1 bt ngun GPS

1.3 AT+CGPSRST:

a. Lnh test:

AT+CGPSRST=?

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Phn hi: +CGPSRST:(danh sch cc mode)

b. Lnh c:

AT+CGPSRST?

Phn hi: +CGPSRST:[mode]

c. Lnh ghi:

AT+CGPSRST=[mode]

[mode]: 0 reset GPS in COLD start mode

[mode]: 1 mode t ng

Ch COLD l ngh cho ln u tin reset

1.4 AT+CGPSINF:

a. Lnh test:

AT+CGPSINF=?

Phn hi: +CGPSINF:(0,2,4,8,16,32,64,128)

b.Lnh c:

AT+CGPSINF=[mode]

Nu [mode] l 0 th:

Phn hi:

[mode],[kinh ],[v ],[ cao],[UTC time],[TTFF],[num],[tc

],[course]

Nu [mode] l:

21: cc thng s xem ph lc A.1 $GPGGA [1]

22: cc thng s xem ph lc A.2 GPGLL [1]

23: cc thng s xem ph lc A.3 GPGSA [1]

24: cc thng s xem ph lc A.4 GPGSV [1][2]

25: cc thng s xem ph lc A.5 GPRMC [1]

26: cc thng s xem ph lc A.6 GPVTG [1]

27: cc thng s xem ph lc A.7 GPZDA [1]

[1] khng bao gm cc thng s:massage ID, checksum, [CR][LF]

[2] bao gm cc thng s:

Satellites in view

Satellites ID

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elevation

azimuth

SNR(C/N0)

1.5 AT+CGPSOUT:

a. Lnh test

AT+CGPSOUT=?

Phn hi: +CGPSOUT:(0-255)

b. Lnh c

AT+CGPSOUT?

Phn hi: +CGPSOUT:[mode]

c. Lnh ghi:

AT+CGPSOUT=[mode]

Nu l 0 th: gim thiu thng tin ng ra GPS NMEA t Debug UART

Nu:

Bit1=1, cho php d liu ng ra NMEA $GPGGA, xem ph lc A.1

Bit2=1, cho php d liu ng ra NMEA $GPGLL, xem ph lc A.2

Bit3=1, cho php d liu ng ra NMEA $GPGSA, xem ph lc A.3

Bit4=1, cho php d liu ng ra NMEA $GPGSV, xem ph lc A.4

Bit5=1, cho php d liu ng ra NMEA $GPRMC, xem ph lc A.5

Bit6=1, cho php d liu ng ra NMEA $GPVTG, xem ph lc A.6

Bit7=1, cho php d liu ng ra NMEA $GPZDA, xem ph lc A.7

1.6 AT+CGPSSTATUS:

a. Lnh test

AT+CGPSSTATUS=?

Phn hi: +CGPSSTATUS:(danh sch cc mode )

b. Lnh c:

AT+CGPSSTATUS?

Phn h: +AT+CGPSSTATUS: [mode]

Cc thng s GPS MODE RESET

[mode] l mt gi tr chui

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Location UnKnown: GPS khng chy

Location Not Fix: GPS chy v khng c nh

Location 2D Fix: trng thi GPS c nh 2D

Location 3D Fix: trng thi GPS c nh 3D

1.7 AT+CGPSIPR:

a. Lnh test:

AT+CGPSIPR=?

Phn hi: +CGPSIPR:(danh sch mode)

b. Lnh c:

AT+CGPSIPR:[mode]

c. Lnh ghi:

AT+CGPSIPR=[mode]

[mode]:4800,9600,19200,38400,57600,115200,230400,460800

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AT-COM gi li cm n chn thnh n cc bn quan tm v ng h cc sn phm ca chng ti, AT-COM s tip tc pht trin, ngy cng hon thin sn phm ca mnh. Hy vng sn phm ca chng ti s gip ch cho vic nghin cu, trin khai nhng ng dng thc t ca cc bn.

Chc thnh cng.

Cty TNHH T ng ha Vin Thng AT-COM Add: 65A, Trn Quc Tun, P. 1, Q. G Vp, TP H Ch Minh Web: www.at-sky.com.vn

Email: [email protected]

datasheet module sim908 cua at_com

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