The proposed International Space Station tracker, powered by the NodeMCU board, uses LEDs and a buzzer to indicate real-time ISS position.
The ISS tracker interfaces with the NASA API to access the ISS’s current location data. Storing the user’s longitude and latitude in the code, the device calculates the effective distance between the ISS and the user’s location.
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The system effectively indicates the ISS’s distance by utilizing LEDs and a buzzer. A formula checks if the ISS is overhead. The green LED lights up when the ISS is directly overhead, and red LEDs light up progressively as the ISS nears the user’s location.
Communication with astronauts or others in the vicinity is possible when the ISS passes over, assuming they are on the radio at that time. This communication, facilitated by the ISS’s radio repeater, requires an antenna.
The components needed to build the International Space Station Tracker are listed in the bill of materials table.
|Red LEDs (LED1-LED7)
|Green LED (LED8)
|Resistor 220Ω (R1-R8)
International Space Station Tracker – Circuit Diagram
The circuit diagram of the ISS tracker is shown in Fig. 2. The tracker is built around NodeMCU (MOD1), a green LED (LED1), seven red LEDs (LED2 through LED8), and eight 220-ohm resistors (R1 through R8).