| This diff is a modified version of a diff written by Arnis Lapsa. | |
| [ The original can be found here: https://gist.github.com/ArnisL/6156593 ] | |
| This diff adds support to tmux for 24-bit color CSI SRG sequences. This | |
| allows terminal based programs that take advantage of it (e.g., vim or | |
| emacs with https://gist.github.com/choppsv1/73d51cedd3e8ec72e1c1 patch) | |
| to display 16 million colors while running in tmux. | |
| The primary change I made was to support ":" as a delimeter as well |
| import numpy as np | |
| def func(t): | |
| if (t > 0.008856): | |
| return np.power(t, 1/3.0); | |
| else: | |
| return 7.787 * t + 16 / 116.0; | |
| #Conversion Matrix | |
| matrix = [[0.412453, 0.357580, 0.180423], |
This is how I got InfluxDB (last stable - 0.8.8) working on FreeBSD 9.3-RELEASE-p9
First make sure sed resolves to gsed, than you don't have to patch that many files .. I solved it this way:
mkdir ~/bin
ln -sf /usr/local/bin/gsed ~/bin/sed
export PATH=~/bin:$PATHInstall required pkgs, setup env and download source.
This is the general instructions for how to get a pebble watch to talk to an ESP8266 and turn NeoPixels different colours.
Video: https://www.youtube.com/watch?v=BeIQ47WBVXs
| #!/bin/bash | |
| # Runs the specified command (provided by the first argument) in all tmux panes | |
| # in every window. If an application is currently running in a given pane | |
| # (e.g., vim), it is suspended and then resumed so the command can be run. | |
| all-panes() | |
| { | |
| all-panes-bg_ "$1" & | |
| } |
More details - http://blog.gbaman.info/?p=791
For this method, alongside your Pi Zero, MicroUSB cable and MicroSD card, only an additional computer is required, which can be running Windows (with Bonjour, iTunes or Quicktime installed), Mac OS or Linux (with Avahi Daemon installed, for example Ubuntu has it built in).
1. Flash Raspbian Jessie full or Raspbian Jessie Lite onto the SD card.
2. Once Raspbian is flashed, open up the boot partition (in Windows Explorer, Finder etc) and add to the bottom of the config.txt file dtoverlay=dwc2 on a new line, then save the file.
3. If using a recent release of Jessie (Dec 2016 onwards), then create a new file simply called ssh in the SD card as well. By default SSH i
Disclaimer: Please follow this guide being aware of the fact that I'm not an expert regarding the things outlined below, however I made my best attempt. A few people in IRC confirmed it worked for them and the results looked acceptable.
Attention: After following all the steps run gdk-pixbuf-query-loaders --update-cache as root, this prevents various gdk-related bugs that have been reported in the last few hours. Symptoms are varied, and for Cinnamon the DE fails to start entirely while for XFCE the icon theme seemingly can't be changed anymore etc.
Check the gist's comments for any further tips and instructions, especially if you are running into problems!
Results after following the guide as of 11.01.2017 13:08:
On low memory devices like the arduino and esp8266 you do not want strings to be stored in RAM. This occurs by default on these systems. Declare a string const char * xyz = "this is a string" and it will use up RAM.
The solution on these devices is to allow strings to be stored in read only memory, in Arduino this is the PROGMEM macro. Most of my experience is with the ESP8266 which is a 32bit micros controller. This device stores PROGMEM data in flash. The macro PROGMEM on ESP8266 is simply
#define PROGMEM ICACHE_RODATA_ATTR
| #!/bin/bash | |
| # This script allows you to chroot ("work on") | |
| # the raspbian sd card as if it's the raspberry pi | |
| # on your Ubuntu desktop/laptop | |
| # just much faster and more convenient | |
| # credits: https://gist.github.com/jkullick/9b02c2061fbdf4a6c4e8a78f1312a689 | |
| # make sure you have issued |
| echo "dtoverlay=i2c-rtc,ds3231" >> /boot/config.txt | |
| cat <<EOF > /etc/udev/rules.d/55-rtc-i2c.rules | |
| #/lib/udev/rules.d/50-udev-default.rules:SUBSYSTEM=="rtc", ATTR{hctosys}=="1", SYMLINK+="rtc" | |
| #/lib/udev/rules.d/50-udev-default.rules:SUBSYSTEM=="rtc", KERNEL=="rtc0", SYMLINK+="rtc", OPTIONS+="link_priority=-100" | |
| # I2C RTC, when added and not the source of the sys clock (kernel), is used | |
| ACTION=="add", SUBSYSTEMS=="i2c", SUBSYSTEM=="rtc", KERNEL=="rtc0", ATTR{hctosys}=="0", \\ | |
| RUN+="/sbin/hwclock '--rtc=\$root/\$name' --hctosys", \\ | |
| RUN+="/sbin/logger --tag systemd-udevd 'System clock set from i2c hardware clock \$name (\$attr{name})'" |