Jim Whitfield jimwhitfield
jimwhitfield
/ Node-Red OPS241-basic-example.json
Created
May 8, 2017 18:20
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| [ | |
| { | |
| "id": "d2eb373.3f50cc8", | |
| "type": "tab", | |
| "label": "Flow 2" | |
| }, | |
| { | |
| "id": "92070e99.486ef", | |
| "type": "serial in", | |
| "z": "d2eb373.3f50cc8", |
jimwhitfield
/ OPS241Radar.py
Created
May 19, 2017 17:11
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| #!/usr/bin/env python3 | |
| # Import time, decimal, serial, GPIO, reg expr, sys, and pygame modules | |
| import os | |
| import sys | |
| from time import * | |
| from decimal import * | |
| import serial | |
| import re | |
| import pygame |
jimwhitfield
/ OmniPreSense-radar-Ubiquity-follow.py
Created
April 3, 2018 23:56
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| #!/usr/bin/python | |
| """ | |
| Copyright (c) 2017, Ubiquity Robotics | |
| All rights reserved. | |
| Redistribution and use in source and binary forms, with or without | |
| modification, are permitted provided that the following conditions are met: | |
| * Redistributions of source code must retain the above copyright notice, this | |
| list of conditions and the following disclaimer. | |
| * Redistributions in binary form must reproduce the above copyright notice, |
jimwhitfield
/ print_json_posts.py
Last active
August 9, 2018 18:02
Web server to accept JSON-formatted HTTP POSTs and pretty-print the payload
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| #!/usr/bin/python2 | |
| # Derived from https://gist.github.com/bradmontgomery/2219997#file-dummy-web-server-py-L26 | |
| # Added the feature to read the post body and print it to console. | |
| # Not useful if the post body isn't json | |
| # Usage:: | |
| # ./print_json_posts.py [<port>] | |
| from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer | |
| import SocketServer | |
| import json |
jimwhitfield
/ verydumbterm.py
Last active
August 24, 2018 21:18
python USB (/dev/ttyACM0) serial terminal that works over ssh. reads from stdin, mingles the echo with whatever arrives from serial
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| #!/usr/bin/env python3 | |
| import serial | |
| from serial.serialutil import SerialException | |
| import sys | |
| import select | |
| import tty | |
| import termios | |
| def key_available(): |
jimwhitfield
/ RadarSensorLCD
Created
March 7, 2019 19:32
Arduino code (beware..uses 'Serial1') for running the OmniPreSense RadarSensor on an LCD responding to a 9481 LCD driver
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| #include <MCUFRIEND_kbv.h> | |
| #include <Adafruit_GFX.h> // Core graphics library | |
| // wiring with UNO or Mega2560: | |
| //--------------POWER Pins-------------------------------- | |
| // 5V connects to DC 5V | |
| // GND connects to Ground | |
| // 3V3 do not need to connect(NC) | |
| //--------------LCD Display Pins-------------------------- | |
| // LCD_RD connects to Analog pin A0 |
jimwhitfield
/ NodeRed-raspi-OP24--A
Created
January 8, 2020 21:38
NodeRed flow to use ttyACM0 and play a sound on data swing
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| [ | |
| { | |
| "id": "6bf977c3.4c5c68", | |
| "type": "tab", | |
| "label": "OPS24--A", | |
| "disabled": false, | |
| "info": "" | |
| }, | |
| { | |
| "id": "6b995d18.2cd584", |
jimwhitfield
/ Node-Red RasPi linux dashboard
Last active
January 10, 2020 02:30
Node-Red export of working dashboard for OPS24x on RasPi
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| [ | |
| { | |
| "id": "38ae5584.60dc7a", | |
| "type": "tab", | |
| "label": "OPS24--A", | |
| "disabled": false, | |
| "info": "" | |
| }, | |
| { | |
| "id": "f22dee6b.be4d4", |
jimwhitfield
/ gist:7a93571da2e41088aeba757b8572f100
Created
February 2, 2021 21:16
cron entry to back up (by tar) list a list of files every 10 minutes
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| 5,15,25,35,45,55 * * * * tar -C / -cvf $HOME/backup/files-`/bin/date +\%Y-\%m-\%d-\%H\%M`.tar --files-from=$HOME/backup/files.list |
jimwhitfield
/ plugin-reboot.log
Last active
September 13, 2021 22:53
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| % sudo udevadm monitor | |
| monitor will print the received events for: | |
| UDEV - the event which udev sends out after rule processing | |
| KERNEL - the kernel uevent | |
| KERNEL[101.778427] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.5 (usb) | |
| KERNEL[101.778735] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.5/1-1.5:1.0 (usb) | |
| KERNEL[101.778948] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.5/1-1.5:1.1 (usb) | |
| KERNEL[101.779325] bind /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.5 (usb) | |
| UDEV [101.831018] add /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.5 (usb) |