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by radioelf
Fri Dec 13, 2019 10:10 am
Forum: Español
Topic: RPI4 como AP ver conectados?
Replies: 0
Views: 312

RPI4 como AP ver conectados?

Hola, tengo una Raspberry 4 configurada como punto de acceso, y un modulo ESP32 que se conecta sin problemas al punto de acceso de la Rpi4, pero si intento ver los parámetros wifi de la conexión, como la calidad de señal de radio no me parece , solo veo otros puntos de acceso, el comando que he prob...
by radioelf
Wed Sep 25, 2019 8:46 am
Forum: Español
Topic: GPIO7 ON durante arranque?
Replies: 3
Views: 944

Re: GPIO7 ON durante arranque?

Bueno, por si es de utilidad pongo como lo he solucionado, como no uso el led de estado de la Raspberry lo he utilizado para asignarlo a CS1 de esta forma al arrancar no se activa GPIO7: /boot/config.txt # Disable the ACT LED on the Pi Zero BCM47 dtparam=act_led_trigger=none dtparam=act_led_activelo...
by radioelf
Tue Sep 24, 2019 3:07 pm
Forum: Device Tree
Topic: GPIO7 ON-> SPI configuration?
Replies: 2
Views: 2913

Re: GPIO7 ON-> SPI configuration?

Hi PhilE. His explanation is VERY useful and clarifying. :D . Thanks
by radioelf
Tue Sep 24, 2019 2:17 pm
Forum: Device Tree
Topic: GPIO7 ON-> SPI configuration?
Replies: 2
Views: 2913

GPIO7 ON-> SPI configuration?

HI. II have configured the use of SPI for an enc28j60 on a Raspberry Pi Zero, Does it work correctly with the use of GPIO8 (SPI0 CE0), but does GPIO 7 (SPI0 CE1) stay high? my configuracion /boot/config.tx : #-------SPI------------- dtparam=spi=on dtoverlay=enc28j60 dtoverlay=spi0-1cs,cs0_pin=8,cs1_...
by radioelf
Tue Sep 24, 2019 4:08 am
Forum: Español
Topic: GPIO7 ON durante arranque?
Replies: 3
Views: 944

Re: GPIO7 ON durante arranque?

Hola de nuevo, gracias por el link, lo he intentado pero el problema persiste.. haciendo varias pruebas he visto que el cambio de estado del pin es en el arranque cuando se llama al proceso " Starting [0;1;39m udev Kernel Device Manager[0m..." bueno es más o meno cuando yo a ojo veo que se...
by radioelf
Sun Sep 22, 2019 8:30 am
Forum: Español
Topic: GPIO7 ON durante arranque?
Replies: 3
Views: 944

GPIO7 ON durante arranque?

Hola, estoy usando una Raspberry Pi Zero con un modulo Ethernet con el IC ENC28J60 a través de SPI, para el pin CS uso el GPIO8 (SPI_CE0) y funciona correctamente, el problema es que también estoy usando el pin GPIO7 (SPI_CE1) como salida para controlar un relé y este se activa durante el arranque d...
by radioelf
Tue Aug 06, 2019 3:26 am
Forum: Español
Topic: Deshabilitar consola serie en el arranque?
Replies: 0
Views: 1369

Deshabilitar consola serie en el arranque?

Hola, quiero deshabilitar la consola serie en el arranque de una Raspberry Zero, y no lo consigo :x , he ejecutado sudo raspi-config opción P6 Serial-> Would you like a login shell to be accessible over serial? ->NO, Would you like serial port hardware to be enabled?-> SI, tambien he comprobado el c...
by radioelf
Wed Nov 16, 2016 9:42 am
Forum: Other projects
Topic: RPi Information Screen for Official Raspberry Pi Display
Replies: 165
Views: 86578

Re: RPi Information Screen for Official Raspberry Pi Display

Hi. test /screens/wordclock OK!: raspberry 3 , hdmi 1920x1080

Code: Select all

mod. main.py: Window.size = (800, 480) by Window.size = (1920, 1080)
mod. /screens/wordclock/screen.py: size = self.config.SIZE by size=(128,131)
by radioelf
Tue Nov 15, 2016 5:04 pm
Forum: Other projects
Topic: RPi Information Screen for Official Raspberry Pi Display
Replies: 165
Views: 86578

Re: RPi Information Screen for Official Raspberry Pi Display

I do not use the official raspberry pi display :oops: ..
by radioelf
Tue Nov 15, 2016 4:50 pm
Forum: Other projects
Topic: RPi Information Screen for Official Raspberry Pi Display
Replies: 165
Views: 86578

Re: RPi Information Screen for Official Raspberry Pi Display

OK, Thank, I have changed Window.size = (800, 480) for window.size = (1920, 1080) It works, but the error screen size continues ...
by radioelf
Tue Nov 15, 2016 12:56 pm
Forum: Other projects
Topic: RPi Information Screen for Official Raspberry Pi Display
Replies: 165
Views: 86578

Re: RPi Information Screen for Official Raspberry Pi Display

There is a small mistake..
by radioelf
Tue Nov 15, 2016 8:44 am
Forum: Other projects
Topic: RPi Information Screen for Official Raspberry Pi Display
Replies: 165
Views: 86578

Re: RPi Information Screen for Official Raspberry Pi Display

I have changed Agenda screen false and clock true, for test: pi@Pi:~/Downloads/RPi-InfoScreen-Kivy $ ./main.py [INFO ] [Logger ] Record log in /home/pi/.kivy/logs/kivy_16-11-15_16.txt [INFO ] [Kivy ] v1.9.2-dev0 [INFO ] [Python ] v2.7.9 (default, Sep 17 2016, 20:26:04) [GCC 4.9.2] [INFO ] [Factory ]...
by radioelf
Tue Nov 15, 2016 8:21 am
Forum: Other projects
Topic: RPi Information Screen for Official Raspberry Pi Display
Replies: 165
Views: 86578

Re: RPi Information Screen for Official Raspberry Pi Display

Now .... pi@Pi:~/Downloads/RPi-InfoScreen-Kivy $ ./main.py [INFO ] [Logger ] Record log in /home/pi/.kivy/logs/kivy_16-11-15_10.txt [INFO ] [Kivy ] v1.9.2-dev0 [INFO ] [Python ] v2.7.9 (default, Sep 17 2016, 20:26:04) [GCC 4.9.2] [INFO ] [Factory ] 193 symbols loaded [INFO ] [Image ] Providers: img_...
by radioelf
Tue Nov 15, 2016 8:12 am
Forum: Other projects
Topic: RPi Information Screen for Official Raspberry Pi Display
Replies: 165
Views: 86578

Re: RPi Information Screen for Official Raspberry Pi Display

Alone i edited file conf.json (screens/agenda) changed false for enabled { "screen": "AgendaScreen", "kv": "agenda.kv", "dependencies": ["dateutil", "pytz"], "enabled": enabled, "params": { "max_days"...
by radioelf
Tue Nov 15, 2016 5:44 am
Forum: Other projects
Topic: RPi Information Screen for Official Raspberry Pi Display
Replies: 165
Views: 86578

Re: RPi Information Screen for Official Raspberry Pi Display

Hi, I have this error: pi@Pi:~/Downloads/RPi-InfoScreen-Kivy $ ./main.py [INFO ] [Logger ] Record log in /home/pi/.kivy/logs/kivy_16-11-15_5.txt [INFO ] [Kivy ] v1.9.2-dev0 [INFO ] [Python ] v2.7.9 (default, Sep 17 2016, 20:26:04) [GCC 4.9.2] [INFO ] [Factory ] 193 symbols loaded [INFO ] [Image ] Pr...
by radioelf
Thu Aug 25, 2016 2:20 am
Forum: Español
Topic: Uso de EEPROM hats
Replies: 3
Views: 918

Re: Uso de EEPROM hats

Hola, entonces creo que lo mejor es llamar desde etc/rc.local a un script que realice la lectura y comprobación de los datos que contiene la EEPROM, lo que me estaña es que no encuentro ningún ejemplo de como lo suelen hacer para gestionar la EEPRON hats en el arranque de la Raspberry...
by radioelf
Wed Aug 24, 2016 4:15 pm
Forum: Español
Topic: Uso de EEPROM hats
Replies: 3
Views: 918

Uso de EEPROM hats

Hola, estoy desarrollando una placa "escudo" para una Raspberry y tengo una EEPROM conectada en ID_SC (pin 28) y ID_SD (pin 27), he seguido los pasos que se indican en esta pagina: https://hackaday.io/project/11222-raspberry-pi-zero-breakout/log/42353-setting-up-hat-eeprom , pero no tengo ...
by radioelf
Sun Dec 22, 2013 2:42 pm
Forum: Python
Topic: ieee754 from bytes
Replies: 6
Views: 2744

Re: ieee754 from bytes

Thanks for the explanation, now I'm using is solution: >>>import struct >>>byte_1 =0xdb >>>byte_2 =0x0f >>>byte_3 =0x49 >>>byte_4 =0x40 >>>buff = [byte_1, byte_2, byte_3, byte_4] >>>print struct.unpack('<f', struct.pack('4B', *buff))[0] 3.14159274101
by radioelf
Sun Dec 22, 2013 8:13 am
Forum: Python
Topic: ieee754 from bytes
Replies: 6
Views: 2744

Re: ieee754 from bytes

Hello, I'm trying to do the same and get this error? >>>import struct >>> floatbytes = bytes([0xdb, 0x0f, 0x49, 0x40]) >>> struct.unpack("f", floatbytes) Traceback (most recent call last): File "<stdin>", line 1, in <module> struct.error: unpack requires a string argument of leng...
by radioelf
Fri May 24, 2013 10:43 am
Forum: Español
Topic: conectar plc a raspberry
Replies: 6
Views: 4044

Re: conectar plc a raspberry

Hola, para conectar podrías usar por ejemplo CAN bus, con alguna interface SPI(http://radioelf.blogspot.com.es/2013/01 ... s-spi.html) o USB (MCP2515DM), otra cosa es como implementar la comunicación entre el PLC y el Raspberry
by radioelf
Thu May 02, 2013 7:41 pm
Forum: Español
Topic: Necesito personas para proyectos de innovacion
Replies: 7
Views: 1731

Re: Necesito personas para proyectos de innovacion

Hola, parece interesante, cuando puedas ya comentaras algo más concreto lo que estas pensando :)
by radioelf
Fri Apr 26, 2013 7:40 am
Forum: Español
Topic: conector entre rca jack de audio
Replies: 2
Views: 873

Re: conector entre rca jack de audio

Hola, si es el P2, es el VideoCore JTAG , en esta pagina http://elinux.org/RPi_Low-level_peripherals hay información sobre los puertos GPIO
by radioelf
Fri Apr 26, 2013 7:25 am
Forum: Español
Topic: C/C++ y gpio
Replies: 1
Views: 777

Re: C/C++ y gpio

Hola, puedes mirar en esta pagina https://projects.drogon.net/raspberry-pi/wiringpi/ hay buena información, en esta http://elinux.org/RPi_Low-level_periphe ... e_examples ejemplos.

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