Modifications

The UART is often compared to a serial port (which is in facts very similar to).

The UART is often compared to a serial port (which is in facts very similar to).

It allows to send and receives data from a device using the same interface like modem, GPS, termina. UART/Serial ports are used to creates point to point communication.

It allows to send and receives data from a device using the same interface like modem, GPS, terminal. UART/Serial ports are used to creates point to point communication.

When wiring an UART, the RX & TX connection must be cross-over like the wiring to GPS here below (see the [https://github.com/mchobby/esp8266-upy/tree/master/gps-ultimate gps-ultimate MicroPython library])

When wiring an UART, the RX & TX connection must be cross-over like the wiring to GPS here below (see the [https://github.com/mchobby/esp8266-upy/tree/master/gps-ultimate gps-ultimate MicroPython library])

[[Fichier:ENG-CANSAT-PICO-HowTo-UART.png|480px]]

[[Fichier:ENG-CANSAT-PICO-HowTo-UART.png|480px]]

{{ambox|text=It is advised to use the UART(1) on GP4 & GP5. Indeed, UART(0) is used to replicates REPL session. See the [[ENG-CANSAT-PICO-USER-GUIDE|Pinout]] for details.}}  

{{ambox|text=It is advised to use the UART(0) on GP0 & GP1. Indeed, UART(1) overlaps the SPI(0) used for Radio module. Alternative UART(1) position used to replicates REPL session. See the [[ENG-CANSAT-PICO-USER-GUIDE|Pinout]] for details.}}  

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