Keeping track of our things and our family is vitally important. Wouldn’t it be great if we were able to embed a tracker into our clothing to do this? For example, shoes are an integral part of our daily routine, and the integration of a safety feature, would make them even more useful. Parents are very worried about their children’s safety. A tracker in a child’s shoe allows parents to stay informed about their child’s location. An embedded SOS alarm or information system can be another useful tool, to be used in case of an emergency, the location and alarm can be sent. The air quality sensor can be useful in providing safety from any allergies. Wired or wireless fast charging options are also available.

System Benefits​:

  • SOS emergency indication using GSM and GPS for location tracking
  • Low-cost, low-power system 
  • Wireless charging option for contactless fast charging
  • Air quality sensing to avoid allergies




  • Shoe tracking for kids
  • Personal safety alarm band

Winning Combinations Interactive Diagram

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4:3 ratio Sheet.1 Sheet.2 Sheet.3 Sheet.4 AS041 AS041 AS041 LDO (3.3V Vout) LDO (3.3V Vout) LDO (3.3V Vout) Air Quality Sensor Air Quality Sensor Air Quality Sensor Boost Converter Boost Converter Boost Converter NFC NFC NFC USB Charging USB Charging USB Charging GSM + GPS Module GSM + GPS Module GSM + GPS Module Diode Sheet.24 Sheet.25 Sheet.26 Diode.27 Sheet.28 Sheet.29 Sheet.30 Ground (earth) Sheet.32 Sheet.33 Sheet.34 Sheet.35 Shunt Sheet.47 Sheet.48 Sheet.49 Antenna Sheet.65 Sheet.66 Sheet.67 Sheet.68 Sheet.69 Shunt.74 Sheet.75 Sheet.76 Sheet.77 Sheet.82 Line 1pt.1552 Sheet.85 Sheet.106 Sheet.107 Sheet.108 Darlington.131 Sheet.110 Sheet.111 Darlington.254 Sheet.113 Sheet.114 Darlington.254 Sheet.116 Sheet.117 Sheet.118 Sheet.119 Sheet.120 Sheet.121 NFC Coil NFC Coil NFC Coil NFC Coil Sheet.124 Transformer.324 Line.841 Line.842 Sheet.128 Inductor.300 Sheet.130 Sheet.131 Sheet.132 Sheet.51 Sheet.54 Sheet.134 Sheet.135 Sheet.136 Sheet.137 Sheet.138 Sheet.139 Sheet.140 Sheet.141 Sheet.144 Li-Ion Charger Li-Ion Charger Li-Ion Charger Batt On Batt On Batt On Sheet.148 Sheet.149 Sheet.150 Darlington.131 Sheet.152 Sheet.153 Darlington.254 Sheet.155 Sheet.156 Darlington.254 Sheet.158 Sheet.159 Sheet.160 Sheet.161 Darlington.131 Sheet.163 Sheet.164 Darlington.254 Sheet.166 Sheet.167 Darlington.254 Sheet.169 Sheet.171 Sheet.172 Sheet.173 Sheet.174 Sheet.175 Sheet.176 Sheet.177 Sheet.178 Sheet.180 Sheet.181 Sheet.182 Sheet.183 Connector 1 Qi (Rx) Up to 5W Qi (Rx) Up to 5W Qi (Rx) Up to 5W 5V, 750mA 5V/750mA 5V/750mA 750mA 750mA 750mA Charge Charge Charge Fault Fault Fault SW On/Off SW On/Off SW On/Off 3V – 4.2V 3V-4.2V 3V-4.2V 3.7V, 850mAH 3.7V/850mAH 3.7V/850mAH Sheet.195 Connector 1.196 Connector 1.197 2 2 2 2 Sheet.200 10mA 10mA 10mA 10mA 10mA 10mA 2 2 2 2 Sheet.206 SW SOS 0.35mA SW_SOS 0.35mA SW_SOS0.35mA 2 2 2 2 Sheet.210 R1 R1 R1 650mA 650mA 650mA Connector 1.213 Connector 1.214 4.5V 1.7Amax 4.5V/1.7Amax 4.5V/1.7Amax 5mA 5mA 5mA Power Power Power 25mA 25mA 25mA R3 R3 R3 Sheet.220 Sheet.221 MCU MCU MCU MCU Prog/Debug Prog/Debug Prog/Debug Int OSC Int OSC Int OSC Vdd Vdd Vdd I2C I2C I2C I2C I2C I2C UART UART UART GPIO GPIO GPIO
Exiting Interactive Block Diagram