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Overview

CAN Bus Adapter allows an automotive's CAN (Controller Area Network) Bus to publish MQTT messages.

Prerequisites

  1. Install libssl,curl, and jansson,gcc, autoconf, and libtool libraries by running
sudo apt-get install libssl-dev libcurl4-openssl-dev libjansson-dev gcc autoconf libtool
  1. Install paho-mqtt C library, repo
git clone https://github.com/eclipse/paho.mqtt.c.git
cd paho.mqtt.c
make clean
make
sudo make install
  1. Build the ClearBlade C SDK Repo
git clone https://github.com/ClearBlade/ClearBlade-C-SDK
cd ClearBlade-C-SDK
make clean
make
sudo make install

Install

  1. Enter your ClearBlade System details in /adapters/contants.h, example below
#ifndef _CONSTANTS_H
#define _CONSTANTS_H


char *SYSTEM_KEY = <SYSTEM_KEY>; // ex. "94aaa4890bc0afe1fbd282b1ac8e01"
char *SYSTEM_SECRET = <SYSTEM_SECRET>; // ex. "9AAEC4890BC68AB6B9BBEDF6B21F"
char *USER_EMAIL = <USER_EMAIL>; // ex. "test@clearblade.com"
char *USER_PASSWORD = <PASSWORD>; // ex. "password"

...

#endif

  1. Build adapter
cd /path/to/canbus-adapter/adapters/
make clean
make
  1. Start adapter
./start_adapter

Test

  1. Install can-utils
git clone https://github.com/linux-can/can-utils
cd can-utils
./autogen.sh
./configure
make
sudo make install
  1. Install virtual can interface
sudo modprobe can
sudo modprobe can_raw
sudo modprobe vcan
sudo ip link add dev vcan0 type vcan
sudo ip link set up vcan0
sudo ip link show vcan0
  1. Send an example payload to CAN Bus
sudo ifconfig vcan0 up
cansend vcan0 123#1122334455667788
  1. All set! You'll see CANBus messages within the CANBus Adapter!
ClearBlade init successful: NByVFwfSCjVf4zF8XSMTG_osxg3B0BA_Tw-CkqU89jsqSlS_eosLT3pPbc4w1Z0KvTQCWjeSvLnGgxoqQw==
Successful connection to MQTT broker
Subscribe succeeded
vcan0 at index 0
Received data from CAN bus: "3DUfw�
Send MQTT message: ID: 291, Data: "3DUfw�

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CANBus-MQTT Adapter for connecting your car to the Internet of Things

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