TK-102 Cable and Connection

TK-102 Traker pinout

Pin 1 2 3 4 5 6 7 8
Programing/GSM modem +5V +5V +5V TTL RxD TTL TxD TTL serial GPS output GND GND
Monitor +5V +5V +5V TTL TxD - TTL serial GPS output GND GND

Pin count starts from the left side.

PC Connection

Using a USB 2.0 to UART TTL converter i was able to communicate with my TK-102.

This TK-102 is based on 89LE58RD MCU

GSM Modem

When i connected pins 4&5 i was able to communicate with the GSM modem and send AT commands.

Speed: 19200bps

Here is th serial terminal output, i tried some at commands.

RDY  
+CFUN: 1  
+CPIN: 
READY 
Call Ready 
ati0  
SIM900B R11.0  
OK 
ati4  
SIMCOM_Ltd SIMCOM_SIM900B  
OK 
ati5  
SIMCOM_Ltd

Monitor

Connecting Pin 4 to the RxD line you can monitor the commands sent to the GSM module.

Speed: 19200bps

AT+GMM
AT+CGSN
AT+CPIN?
ATE1
AT+CLIP=1
AT+CMIC=0,9
AT+CLVL=4
AT+CMGF=1
AT+CNMI=2,1,0,0,0
AT+CIPHEAD=1
AT+IPR=19200;&W
AT+CSQ
AT+CREG?
TRACKER102_AOHANG_AMERICA_2.1AT+CIPCSGP=1
AT+CIPMUX=0
AT+CIPSPRT=0
AT+CIPSTATUS
AT+CSTT="access.point.name","",""
AT+CBC
AT+CIPSTATUS
AT+CIICR
AT+CIFSR
AT+CIPSTART="TCP","172.16.45.45","19000"
AT+CIPSHUT
AT+CIPSTATUS
AT+CSQ
AT+CSQ
AT+CSQ
AT+CSQ
AT+CSQ
AT+CFUN=0
AT+CFUN=1
AT+CSQ
AT+CSQ
AT+CSQ
AT+CSQ
AT+CSQ
AT+CFUN=0

GPS Data

Pin 6 outputs GPS data.

Speed: 4800bps

$GPRMC,235950.029,V,,,,,,,310307,,,N*48
$GPGGA,235951.029,,,,,0,00,,,M,0.0,M,,0000*54 
$GPGSA,A,1,,,,,,,,,,,,,,,*1E 
$GPGSV,3,1,12,20,00,000,,10,00,000,,31,00,000,,27,00,000,*7C 
$GPGSV,3,2,12,19,00,000,,07,00,000,,04,00,000,,24,00,000,*76 
$GPGSV,3,3,12,16,00,000,,28,00,000,,26,00,000,,29,00,000,*78
		
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