hello. i am using a high altitude gps and i need to connect it to arduino mega. i am not sure if the tx wire goes to the tx pin of mega or rx pin of mega. i searched online and there are many answers.. i do not know which one to follow but i am guessing its TX to RX and RX to TX. i really need to know the answer and hope you guys can help me.. thank you!
It is usually crossed, GPS TX to Arduino RX, and GPS RX to Arduino TX.
Just be sure your GPS is the same voltage level as your Arduino. Many GPS modules are 3.3V, and most Arduinos are 5V. Be careful when you connect the GPS Vcc! And you would need to protect a 3.3V GPS RX pin from a 5V Arduino TX pin with level-shifting.
Or tell us your GPS model and which Arduino you're using.
Cheers,
/dev
/dev:
It is usually crossed, GPS TX to Arduino RX, and GPS RX to Arduino TX.Just be sure your GPS is the same voltage level as your Arduino. Many GPS modules are 3.3V, and most Arduinos are 5V. Be careful when you connect the GPS Vcc! And you would need to protect a 3.3V GPS RX pin from a 5V Arduino TX pin with level-shifting.
Or tell us your GPS model and which Arduino you're using.
Cheers,
/dev
Noted. Thank you so much!