Questions tagged [GPIO] (22)

2
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To light a led on the raspberry via web interface using php, or in any other way?

It is necessary to light the led through php via the web interface. In PHP I wrote on execution Python script exec("sudo /var/www/html/led/***.py"), but in the end the led is not lit. PHP is running as FastCGI.
Ward_Murazik26 asked April 3rd 20 at 17:48
1
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Raspberry Pi 3b+ 't see 1Wire for DS18b20?

Problem: New kernel raspbian does not detect sensor DS18b20 1wire bus. This is due to the Device Tree which was added in Kernel 3.18.8 (Kernel 3.18.8 breaks 1-wire)What is available:Raspberry Pi 3b+ Kernel: 4.14.98-v7+DS18b20 working, tested on Arduino A signal pulled up through a resistor of 4.7 K Ω (tested it with a 1K Ω)...
katelyn.Hilpe asked March 20th 20 at 12:25
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How to give signals on a 74hc595 using Raspberry and python 2.7?

Please help dear! Connected to the Raspberry pi stepper motors and a bunch of garbage, not enough ports. For relief decided to use the 74HC595. Could you give some simple example of raising(HIGH) and lower(LOW) pin on the 74HC595(python 2.7)? Interested in two cases, when one 74HC595 in the scheme, and when several of them ...
sebastian_Hintz78 asked March 15th 20 at 22:29
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Is it possible to remove from the tablet matrix and connect via gpio?

1. Is it possible do the operation of lifting at home? To also not ruin the picture quality - I understand the screen consists of glass and the plates between which it is possible to make the "air layer". 2. Any matrix can be connected to a gpio? When I googled the topic, wandered into the topic with the hack of the frames...
Ashleigh75 asked October 1st 19 at 02:34
0
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BeagleBone Black, one of the GPIO ports of the received voltage is greater than 3.3 V. the Consequences?

Had a very unpleasant situation with my BeagleBone Black, one of the GPIO ports of the received voltage is greater than 3.3 V. of Course not on purpose, but due to the failure of other circuits, which ruled my BeagleBone Black. Now the Board does not start flashing the power led and all. The preliminary cause, the presence ...
Napoleon30 asked September 26th 19 at 17:10
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How to connect 16 channel relay module for Raspberry Pi B?

Kind time of days, Habr! Actually, a subject. There are sions module: www.ebay.com/itm/271532159919?ssPageName=STRK:MEWN... If you try to connect directly, i.e., pin raspberry "earth" to "earth" Board, the pin 5V to 5V and the GPIO pin output to any of reluc - raspberry reboots. Triggered overload protection or something. T...
celestino_Morar asked September 26th 19 at 01:04
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As in a normal server to make the GPIO and LCD?

Want on the front panel of the server display monitor and a few lights illumination for status indication. It would seem, to insert Arduino, but how is the mind to do in a normal server? Is it really necessary to take ethernet? Or you can stick to Arduino in the USB and to communicate with it from Linux via USB?
Richie_Lynch asked September 26th 19 at 00:56
1
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Where to get GPIO cable for Raspberry PI?

All kind time of day. I would like to ask the people having this toy. While that is ripped from the body of the 5V wires are intended for Reset, HDD, etc. But where to get longer cables? Want the country to monitor the temperature, humidity, etc. the RPI Itself will be home, but to the sensors it is necessary to conduct wir...
Cyrus_Brown asked September 24th 19 at 14:48
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How to make a cooling Raspberry pi?

Hello. I use the RasPi in overclocked mode. But it is very strongly heated. On the CPU I glued the radiator, but the temperature is still unacceptable to me. Reviewing the server switch, I found a cooler of small size 5V 0.2 A, which works quite well on gpio4 and 6 (5v and ground). But when off the Board but connected to th...
Brenden_Kuphal71 asked September 24th 19 at 10:23
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How to use Gpio to raspberry to run prilojenii?

For example, there is a toggle switch or button proactively which would run a program or a script, for Example, clicked on one button, start the desktop on another XBMC
Wilhelmine61 asked September 24th 19 at 10:20