RaspberryPi/UART: Difference between revisions
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http://elinux.org/RPi_Serial_Connection | = Powering the Raspberry Pi = | ||
The UART connector can also power the Raspberry Pi. However, do not connect two power sources! The two scenarios shown below are alternatives. | |||
== RaspberryPi_UART_POWER.JPG == | |||
Raspberry Pi B+ powered via UART/serial cable: | |||
[[Image:RaspberryPi_UART_POWER.JPG | 300px ]] | |||
In this case, you should not connect USB power. | |||
== RaspberryPi_UART_and_USB_power.JPG == | |||
Raspberry Pi B+ connected via UART/serial cable, but powered through USB: | |||
[[Image:RaspberryPi_UART_and_USB_power.JPG | 300px ]] | |||
In this case, you should not power the Raspberry Pi via UART (i.e. do not connect the red cable on the UART connector). | |||
Similar image, for model B from http://elinux.org/RPi_Serial_Connection | |||
[[Image:Adafruit-connection.jpg|200px]] | [[Image:Adafruit-connection.jpg|200px]] | ||
http://aperiodic.net/screen/quick_reference | |||
= RaspberryPi_UART_Ethernet.JPG = | |||
In both scenarios above, the ethernet cable can be connected as well. The picture below shows | |||
Raspberry Pi B+ connected via UART/serial cable and ethernet cable, powered through USB: | |||
[[Image:RaspberryPi_UART_Ethernet.JPG | 300px ]] | |||
If you remove the USB power supply, you could also power the Raspberry Pi using the red UART cable. | |||
Latest revision as of 13:30, 10 January 2015
Powering the Raspberry Pi
The UART connector can also power the Raspberry Pi. However, do not connect two power sources! The two scenarios shown below are alternatives.
RaspberryPi_UART_POWER.JPG
Raspberry Pi B+ powered via UART/serial cable:
In this case, you should not connect USB power.
RaspberryPi_UART_and_USB_power.JPG
Raspberry Pi B+ connected via UART/serial cable, but powered through USB:
In this case, you should not power the Raspberry Pi via UART (i.e. do not connect the red cable on the UART connector).
Similar image, for model B from http://elinux.org/RPi_Serial_Connection
http://aperiodic.net/screen/quick_reference
RaspberryPi_UART_Ethernet.JPG
In both scenarios above, the ethernet cable can be connected as well. The picture below shows Raspberry Pi B+ connected via UART/serial cable and ethernet cable, powered through USB:
If you remove the USB power supply, you could also power the Raspberry Pi using the red UART cable.
