Matt McMillan matt448
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| #!/usr/bin/python | |
| import Image | |
| import ImageDraw | |
| import ImageFont | |
| import glob | |
| import Adafruit_BBIO.ADC as ADC | |
| import time |
matt448
/ part1_BBB_TFT_fonts.py
Last active
August 29, 2015 14:05
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| import Image | |
| import ImageDraw | |
| import ImageFont | |
| import Adafruit_ILI9341 as TFT | |
| import Adafruit_GPIO as GPIO | |
| import Adafruit_GPIO.SPI as SPI | |
| font = ImageFont.truetype('Minecraftia.ttf', 16) |
matt448
/ tft_speedo_with_sd_card.ino
Last active
July 16, 2020 19:45
This code is a work in progress for my TFT speedometer project.
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| #include "SPI.h" | |
| #include "Adafruit_GFX.h" | |
| #include "Adafruit_ILI9340.h" | |
| #include <SD.h> | |
| #if defined(__SAM3X8E__) | |
| #undef __FlashStringHelper::F(string_literal) | |
| #define F(string_literal) string_literal | |
| #endif |
matt448
/ MCP4251_tcon.ino
Last active
April 12, 2024 22:02
Example code for controlling a MCP4251 with an Arduino Uno.
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| /* | |
| Matthew McMillan | |
| @matthewmcmillan | |
| http://matthewcmcmillan.blogspot.com | |
| Created 12 Mar 2014 | |
| Digital Pot Control (MCP4251) | |
matt448
/ Speedometer_7seg.ino
Created
February 4, 2014 03:56
Code that controls my Arduino based digital speedometer. This version uses a seven segment LED display.
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| // Matthew McMillan | |
| // @matthewmcmillan | |
| // http://matthewcmcmillan.blogspot.com | |
| // | |
| // Digital speedometer | |
| // | |
| // VSS on car connects to pin 5 | |
| // CLK on display to Analog pin 5 | |
| // DAT on display to Analog pin 4 | |
| // |
matt448
/ tft_test.ino
Last active
November 3, 2017 20:21
This is a simple sketch I used to test the refresh rate of an Adafruit 2.2" TFT display on an Arduino Mega 2560.
http://www.adafruit.com/products/1480
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| #include "SPI.h" | |
| #include "Adafruit_GFX.h" | |
| #include "Adafruit_ILI9340.h" | |
| #if defined(__SAM3X8E__) | |
| #undef __FlashStringHelper::F(string_literal) | |
| #define F(string_literal) string_literal | |
| #endif | |
| // These are the pins used for the Mega |
matt448
/ contacts.cfg
Created
December 31, 2013 19:07
Nagios configuration lines for adding Slack to contacts.
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| define contact { | |
| contact_name slack | |
| alias Slack | |
| service_notification_period 24x7 | |
| host_notification_period 24x7 | |
| service_notification_options w,u,c,r | |
| host_notification_options d,r | |
| service_notification_commands notify-service-by-slack | |
| host_notification_commands notify-host-by-slack | |
| } |
matt448
/ commands.cfg
Created
December 31, 2013 19:01
Configuration to be added to existing commands.cfg. This tells how to use the slack_nagios.sh script.
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| ############################### | |
| # Slack notifications | |
| ############################### | |
| # 'notify-service-by-slack' command definition | |
| define command { | |
| command_name notify-service-by-slack | |
| command_line /usr/local/bin/slack_nagios.sh > /tmp/slack.log 2>&1 | |
| } |
matt448
/ slack_nagios.sh
Last active
February 13, 2023 15:38
Script to post Nagios notifications into a Slack channel
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| #!/bin/bash | |
| # This script is used by Nagios to post alerts into a Slack channel | |
| # using the Incoming WebHooks integration. Create the channel, botname | |
| # and integration first and then add this notification script in your | |
| # Nagios configuration. | |
| # | |
| # All variables that start with NAGIOS_ are provided by Nagios as | |
| # environment variables when an notification is generated. | |
| # A list of the env variables is available here: |
matt448
/ SPI_Digital_Pot_AD8403.ino
Created
October 24, 2013 15:58
Example code for controlling an AD8403 Digital Potentiometer. Please see https://github.com/matt448/arduino for the latest version of this code.
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| /* | |
| Digital Pot Control | |
| This example controls an Analog Devices AD8403 digital potentiometer. | |
| The AD8403 has 4 potentiometer channels. Each channel's pins are labeled | |
| A - connect this to voltage | |
| W - this is the pot's wiper, which changes when you set it | |
| B - connect this to ground. | |
| The AD8403 is SPI-compatible. To command it you send two bytes. |