GPS 4 Click Board™

Product Code: MIKROE-2704

The GPS 4 Click Board™ carries the L70 compact GPS module from Quectel. The click is designed to run on either 3.3V or 5V power supply. It communicates with the target microcontroller over UART interface, with additional functionality provided by the following pins on the mikroBUS™ line: PWM, AN, RST. L70 MODULE FEATURES L70, an SMD type module, brings the high performance of MTK positioning engine to the industrial applications with a compact profile, ultra low power consumption and fast positioning capability. Combining advanced AGPS called EASY™ (Embedded Assist System) and proven AlwaysLocate™ technology, L70 achieves the highest performance and fully meets the industrial standard. EASY™ technology ensures L70 can calculate and predict orbits automatically using the ephemeris data (up to 3 days) stored in internal RAM memory, so L70 can fix position quickly even at indoor signal levels with low power consumption. With AlwaysLocate™ technology , L70 can adaptively adjust the on/off time to achieve a balance between positioning accuracy and power consumption according to the environmental and motion conditions.

How Does The GPS 4 Click Board™ Work? A constellation of satellites sends a continuous signal towards Earth. Onboard every satellite is an atomic clock, and all of them are synchronized, thanks to a reference time scale defined by the whole system. So, that the signals coming from the different satellites of the same constellation share the same reference time scale. The user wanting to use GPS to determine its position must have an antenna that receives the signals coming from the satellites, and a receiver that translates these signals. The antenna position will be deduced from the measurements of the time delay between the emission time (satellite) and the reception time (receiver) for at least 4 signals coming from different satellites. SPECIFICATIONS Type GPS+GNSS Applications Navigation devices based on GPS On-board modules Quectel's L70 Key Features Ultra low power consumption in tracking mode, 12mA, High sensitivity, -165dBm@Tracking, -148dBm@Acquisition Interface UART Compatibility mikroBUS Click board size L (57.15 x 25.4 mm) Input Voltage 3.3V or 5V PINOUT DIAGRAM This table shows how the pinout on the GPS 4 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns). Notes Pin Pin Notes Module Force ON FORCE ON 1 AN PWM 16 STANDBY Module Standby Module Reset RST 2 RST INT 15 NC NC 3 CS TX 14 TX Module Transmit line NC 4 SCK RX 13 RX Module Receive line NC 5 MISO SCL 12 NC NC 6 MOSI SDA 11 NC Power supply +3.3V 7 3.3V 5V 10 +5V Power supply Ground GND 8 GND GND 9 GND Ground JUMPERS AND SETTINGS Designator Name Default Position Default Option Description JP1 VBAT ON VCC BCKP Battery connection JP2 VCCIO 3V3 Level selector BUTTONS AND LEDS Designator Name Type Description LD1 PWR LED Power Indication LED LD2 PPS LED GPS tracking indicator