Matt McMillan matt448
matt448
/ Speedometer_HMI.ino
Created
June 1, 2017 15:47
Arduino based speedometer using a Nextion HMI Display
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| #include "Nextion.h" | |
| const int lightPin = 0; | |
| const int hardwareCounterPin = 5; | |
| const int samplePeriod = 1000; //in milliseconds | |
| const float pulsesPerMile = 4000; | |
| const float convertMph = pulsesPerMile/3600; | |
| unsigned int count; | |
| float mph; |
matt448
/ Speedometer_TM1637.ino
Created
January 13, 2016 02:30
Digital speedometer using a TM1637 type display
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| // Matthew McMillan | |
| // @matthewmcmillan | |
| // http://matthewcmcmillan.blogspot.com | |
| // | |
| // Digital speedometer that uses a TM1637 type display | |
| // | |
| // Code is written for an Arduino UNO | |
| // | |
| // VSS on car connects to digital pin 5 | |
| // CLK on display to digital pin 3 |
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| /* | |
| Started with example code written by Nathan Seidle from SparkFun Electronics and added | |
| LCD output with gram and ounce values. | |
| Setup your scale and start the sketch WITHOUT a weight on the scale | |
| Once readings are displayed place the weight on the scale | |
| Press +/- or a/z to adjust the calibration_factor until the output readings match the known weight | |
| Arduino pin 6 -> HX711 CLK | |
| Arduino pin 5 -> HX711 DOUT |
matt448
/ CAN_Sender_500k_29bit.ino
Created
February 10, 2015 02:26
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| ///////////////////////////////////////////////////////////////////// | |
| // This is a simple example of sending CAN messages with 29bit id's | |
| // | |
| // https://matthewcmcmillan.blogspot.com | |
| // Twitter: @matthewmcmillan | |
| // | |
| #include "mcp_can.h" | |
| #include <SPI.h> | |
matt448
/ CAN_Sender_500k_11bit.ino
Last active
May 18, 2019 16:24
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| ///////////////////////////////////////////////////////////////////// | |
| // This is a simple example of sending CAN messages with 11bit id's | |
| // | |
| // https://matthewcmcmillan.blogspot.com | |
| // Twitter: @matthewmcmillan | |
| // | |
| #include "mcp_can.h" | |
| #include <SPI.h> |
matt448
/ serialtest.py
Last active
July 16, 2020 19:45
Python script to test the CAN data sent by the Trinket CAN to UART converter
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| #!/usr/bin/python | |
| ########################################## | |
| # https://matthewcmcmillan.blogspot.com | |
| # Twitter: @matthewmcmillan | |
| # | |
| # For the most up to date version of this file see: | |
| # https://github.com/matt448/Digital_Dash_v2/blob/master/serialtest.py | |
| # |
matt448
/ trinket_can_to_uart.ino
Last active
August 29, 2015 14:14
A CAN Bus to Uart Converter using an Adafruit Pro Trinket, MCP2515 and a MCP2562.
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| //////////////////////////////////////////// | |
| // | |
| // Trinket Pro CAN Bus to UART Converter | |
| // | |
| // https://matthewcmcmillan.blogspot.com | |
| // Twitter: @matthewmcmillan | |
| // | |
| // For the most up to date version of this file see: | |
| // https://github.com/matt448/Digital_Dash_v2/blob/master/arduino_code/trinket_can_to_uart.ino | |
| // |
matt448
/ canbus_start.sh
Created
October 19, 2014 20:29
Script to start can bus interface on a Beagle Bone Black
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| #!/bin/bash | |
| re='^[0-9]+$' | |
| if ! [[ $1 =~ $re ]] ; then | |
| echo -e "ERROR: Can bus bitrate not a number or a value wasn't entered.\n\nPlease enter a speed in Kbit/s\n\n Example: canbus_start.sh 100\n Speeds: 100,125,250,500\n" >&2; exit 1 | |
| fi | |
| echo Bitrate: ${1}Kbit/s | |
| sudo modprobe can | |
| sudo modprobe can-dev |
matt448
/ dcan1_dmesg_output.txt
Created
October 19, 2014 18:34
Output from dmesg when enabling dcan1 on a Beagle Bone Black
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| root@bone:~# dmesg | tail -n 15 | |
| [1190326.609897] gadget: high-speed config #1: Multifunction with RNDIS | |
| [1199448.966162] bone-capemgr bone_capemgr.9: part_number 'BB-DCAN1', version 'N/A' | |
| [1199448.966337] bone-capemgr bone_capemgr.9: slot #9: generic override | |
| [1199448.966382] bone-capemgr bone_capemgr.9: bone: Using override eeprom data at slot 9 | |
| [1199448.966430] bone-capemgr bone_capemgr.9: slot #9: 'Override Board Name,00A0,Override Manuf,BB-DCAN1' | |
| [1199448.968166] bone-capemgr bone_capemgr.9: slot #9: Requesting part number/version based 'BB-DCAN1-00A0.dtbo | |
| [1199448.968223] bone-capemgr bone_capemgr.9: slot #9: Requesting firmware 'BB-DCAN1-00A0.dtbo' for board-name 'Override Board Name', version '00A0' | |
| [1199448.969684] bone-capemgr bone_capemgr.9: slot #9: dtbo 'BB-DCAN1-00A0.dtbo' loaded; converting to live tree | |
| [1199448.970118] bone-capemgr bone_capemgr.9: slot #9: #2 overlays |
matt448
/ BB-DCAN1-00A0.dts
Last active
August 29, 2015 14:07
Device tree overlay to enable dcan1 on a Beagle Bone Black
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| /dts-v1/; | |
| /plugin/; | |
| / { | |
| compatible = "ti,beaglebone", "ti,beaglebone-black"; | |
| /* identification */ | |
| part-number = "dcan1pinmux"; | |
| fragment@0 { |
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