I am very new to electronics yet I am working on a project to use Arduino as a data logger of a ublox module. The Arduino model I am using is Arduino MKR Zero and the Ublox board C94-M8P.
Before I get my hands on connecting the two I would like to make sure that my setup is not going to burn either of the components.
The design I am planning to adopt is:
Arduino MKR Zero || TX || RX || GND || (Any pin that can output 3.3V)
Ublox C94-M8P || RX || TX || GND || VCC
While both components work at 3.3V, I recognized that the maximum tolerable currents are 7 mA on the Arduino and 10 mA on the Ublox. Is there a need for me to lower the current from the Ublox in this case?
As long as both boards are 3.3V, it is safe to connect outputs directly to inputs.
Do not try to power the Ublox from a digital output pin. This data sheet states that the Ublox module is powered by 3.7 - 20V via the battery connector, or 5V.
It should be powered on or off simultaneously with the Arduino, preferably from the same power source.
jremington:
As long as both boards are 3.3V, it is safe to connect outputs directly to inputs.
Do not try to power the Ublox from a digital output pin. This data sheet states that the Ublox module is powered by 3.7 - 20V via the battery connector, or 5V.
It should be powered on or off simultaneously with the Arduino, preferably from the same power source.
Thank you very much!
I think I will be using external batteries for both the Arduino and Ublox then.