Raspberry Pi Forums

Hove

Why isn't there somebody of the RPI imperium who can fix this issue??? Wally I can't help with the overall problem without a lot more detail about what the errors were. The fact wlan0 isn't there at all hasn't anything to do with hostapd nor (probably) the kernel driver. Something else is wrong. Li...

Hove

Just FYI, with identical image on a new SD card, new A+ and new sensor and PCB (thank heavens for always buying spares), the I2C Python SMBus errors are gone. That doesn't really help identify the source of the problem other than that it's hardware not software but at least the problem has gone. Bes...

Hove

Dr Hove, By the way. The RTL8188cus is that the correct driver for the 8192 too ? Wally I'm pretty sure this will work. The problem is not with the WiFi chipset / driver, but with hostapd which needs a revised version to access the difference ioctl API provided by the RealTech chipset. So once you ...

Hove

Is the I2C master clock derived from one of the other clocks in the system? If so, would it be affected by overclocking? This is an A+ with baudrate 400kbps, overclocked to 900MHz (medium in raspi-config) running Valentines day 2015 Raspian distribution. I'm occasionally getting python smbus I2C rea...

Hove

Have you tried this? http://www.jenssegers.be/blog/43/Realtek-RTL8188-based-access-point-on-Raspberry-Pi This works with a variety of RealTek chipsets on my RPi B2. Just FYI, prior to the B2, then this version also worked well - can't remember what the problem I saw with it on the B2. http://www.dav...

Hove

I'd personally desolder the usb port, and maybe the headers, but that's a pain in the backside. so maybe just trim the header down so i can just solder to it. (for an emulator system inside a gameboy pocket) @Djinny - actually desoldering the 40 pins headers is easy as long as you don't care about ...

Hove

I just want to chip in that I get the same from my workhorses RPi 2 - works fine except for the quiet hissy buzzy noise. Volume / pitch varies depends primarily on WiFi load - used the same dongle on previous model B+ workhorse and it was silent. Likewise keyboard and mouse and monitor are same as m...

Hove

Paddy, Ben, thanks both for you responses. For the moment, I've dropped back to single threaded mode, as it's marginally faster (no fighting over the GIL in a single CPU model A); I'll review again when I've got access to a multi-core model A 2! @paddy - Arduino is anathema to this project; one of m...

Hove

I have a hardware interrupt detected on a GPIO pin which says that new sensor data is ready. I then have 1ms to read that data over I2C before the next interrupt. I have a second thread running that's periodically doing motion processing on a copy of the accumulated data. I have no locking between t...

Hove

@paddyg: I finally had the time to try ord() to format the YUV io.ByteIO() from picamera and it works perfect, thanks.

Hove

Beyond keyboard, mouse, monitor / TV and WiFi dongle, the rest depends on what you want to do. For flashing LEDs, you'll need some wires, and LEDs, and perhaps low value resistors (50 ohms?). You don't need to buy any software - it's all open source / free. No idea of the prices in India, but here, ...

Hove

Hi, Did you sort this out? Not yet - I was hoping someone helpful like you could suggest ideas ;-) I also got distracted by I2C timing problems that have arisen again having worked for months - I hope just a mess up on pull-up resistors in my part. I think that might work in python3 but in in pytho...

Hove

I'm playing with RaspiCam / picamera to find the brightest point in a 32 x 32 pixel image in YUV format. I'd like to print the Y (luminance) data for each pixel arranged in a square. This is the first 1028 bytes in the stream. But I'm having trouble formatting the stream data from the camera for pri...

Hove

The Vishay mosfet logic DIL fets Hove mentions are a nice find, useable in a breadboard, but with logic levels controllable. Still the "logic levels" these are designed for are 5V logic levels, for 3V3 you must still select one from the range with an as low a Vgs(on) as possible. Start with one of ...

Hove

I like this range: http://uk.farnell.com/webapp/wcs/stores ... ogic%20DIL

Designed for logic level switch, with low Rds and cabable of switching higher voltage and reasonable current for such a small device.

Hove

I didn't say it was perfect, though I should have spotted that: mc.setBlock(pos.x, pos.y, pos.z, blockType) time.sleep(0.5) for x in range(blastRadius*-1,blastRadius): for y in range(blastRadius*-1, blastRadius): for z in range(blastRadius*-1,blastRadius): if x**2 + y**2 + z**2 < blastRadius**2: mc....

Hove

No promises this is perfect, but pretty sure it's closer: import minecraft.minecraft as minecraft #import minecraft block module import minecraft.block as block #import time, so delays can be used import time #import threading, so threads can be used import threading class ExplodingBlock(threading.T...

Hove

Wow, thanks for the fast turnaround - problem solved. I'll go read the rest of the readme now!

Hove

I believe my i2C is running at 100kbps baudrate. With previous versions of the kernel, adding a new file (e.g. i2c_bcm2708) in /etc/modprobe.d/ with options i2c_bcm2708 baudrate=400000 would take the baudrate up to 400kbps. I don't think this method is working with the latest i2c drivers in the new ...

Hove

I've just seen the same problem. Enabling I2C via raspi-config is not enough; it is still necessary to add the kernel modules in /etc/modules: i2c-bcm2708 i2c-dev A reboot, and i2cdetect -y 1 shows correctly 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- -- -- -- -- -- 10: -- -- -- -- -...

Hove

Find a local Raspberry Jam and donate spare Raspberry Pi's to them. I've given away an A+ and B+ to the Cotswold Jam - one went to a kid who won the Minecraft coding competition open only to those who don't own one, and the other raised funds via a raffle for more RPi's for the next Jam. I'm likely ...

Hove

Latest B+ case works well with 2's, but because the 2's have a larger, and relocated USB controller, the older B+ PiBows don't without the trivial dremeling - glad I ordered the revised case along with the 2 from Pimoroni - arrived yesterday (i.e. 24 hours after launch), fits the new case beautifull...

Hove

M2com wrote:Such a stupid mistake.
-M2com

There's no such thing as a stupid mistake if you've learnt from it - which you clearly have. That's what learning through experimentation (or science as it's commonly called) is all about.

Hove

import sys from sys import stdout # This and the import below allow error signal reading to be displayed continuously on command line import time from time import sleep from datetime import datetime import RPi.GPIO as GPIO # Import the Pi's GPIO library import RPIO.PWM as PWM # Import the Pi's PWM ...

Hove

bertwert wrote:ioeaperplvrsbryi

ieprlvrsbryioaep

These are the same messages just different encoding see above post

Countdown conundrum decryption:

"I love Raspberry Pi"

Search found 1205 matches

Re: RPI2b RTL8192CU

Re: [SOLVED (kinda)]Source of i2c master clock speed?

Re: RPI2b RTL8192CU

[SOLVED (kinda)]Source of i2c master clock speed?

Re: RPI2b RTL8192CU

Re: The Future of the Pi A series

Re: Hiss coming from Pi2

Re: Is it possible to control the GIL in code?

Is it possible to control the GIL in code?

Re: Formatting data from io.ByteIO stream

Re: What else I need to buy along with Pi 2 board?

Re: Formatting data from io.ByteIO stream

SOLVED: Formatting data from io.ByteIO stream

Re: 3.3v Logic Level MOSFETs

Re: 3.3v Logic Level MOSFETs

Re: Indenting Question

Re: Indenting Question

Re: i2c baudrate with A+ / latest dist

SOLVED: i2c baudrate with A+ / latest dist

Re: Cant get i2c set up!

Re: Donations & laziness

Re: Hacked case for RPi 2

Re: B+ GPIO Pins Not Working

Re: Basic PID program without any fancy stuff

Re: Encryption - The codebreakers thread