I encountered some problems, need help

[Mr-dbo]

Hi,mirceageorgescu

This is my reminder being given, what is the reason, what is the solution?

pi@raspberrypi ~/raspi-tank $ sudo node app.js
info - socket.io started
Listening 3000 in development mode
Error when trying to open pin 16
gpio-admin: could not flush data to /sys/class/gpio/export: Device or resource busy

Error when trying to open pin 15
gpio-admin: could not flush data to /sys/class/gpio/export: Device or resource busy

Error when trying to open pin 12
gpio-admin: could not flush data to /sys/class/gpio/export: Device or resource busy

Error when trying to open pin 11
gpio-admin: could not flush data to /sys/class/gpio/export: Device or resource busy

debug - client authorized
info - handshake authorized 3427653791296134524
debug - setting request GET /socket.io/1/websocket/3427653791296134524
debug - set heartbeat interval for client 3427653791296134524
debug - client authorized for
debug - websocket writing 1::

THX
Mr_dbo

[ghost]

Looks like those pins have already been opened by something, I'd check the gpio directory first. You can also try use gpio.close(pin) at the start of the code.

[mirceageorgescu]

This happens when you run the app and then close it by using ctrl+c in the terminal and then run it again. The pins remain open. Closing them at runtime should help.

Sent from my iPhone

On 29 iul. 2015, at 17:09, ashleyksmith [email protected] wrote:

Looks like those pins have already been opened by something, I'd check the gpio directory first. You can also try use gpio.close(pin) at the start of the code.

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[mirceageorgescu]

By the way, the code is really old and not maintained anymore. I suggest you to use this version instead because it's more recent.

https://github.com/mirceageorgescu/raspi-tank-2

Sent from my iPhone

On 29 iul. 2015, at 17:09, ashleyksmith [email protected] wrote:

Looks like those pins have already been opened by something, I'd check the gpio directory first. You can also try use gpio.close(pin) at the start of the code.

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Reply to this email directly or view it on GitHub.

[Mr-dbo]

@mirceageorgescu Thanks for your reply ~

I went to try ~

THX。

[Mr-dbo]

@mirceageorgescu

[raspi-tank-2] cover [raspi-tank] ？