{"id":684,"date":"2025-11-26T08:12:59","date_gmt":"2025-11-26T07:12:59","guid":{"rendered":"http:\/\/www.f4irx.com\/wordpress\/?p=684"},"modified":"2025-11-26T08:16:43","modified_gmt":"2025-11-26T07:16:43","slug":"mcp2515-canbus-communication","status":"publish","type":"post","link":"http:\/\/www.f4irx.com\/wordpress\/index.php\/2025\/11\/26\/mcp2515-canbus-communication\/","title":{"rendered":"MCP2515 – CanBus Communication"},"content":{"rendered":"\n

Ref : https:\/\/github.com\/autowp\/arduino-mcp2515<\/a><\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

<\/p>\n\n\n\n

<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

<\/p>\n\n\n\n

Code Reception<\/h1>\n\n\n\n

include SPI.H
include mcp2515.h
struct can_frame canMsg;
MCP2515 mcp2515(10);
void setup()
{
Serial.begin(115200);
SPI.begin();
mcp2515.reset();
mcp2515.setBitrate(CAN_500KBPS, MCP_8MHZ);
mcp2515.setNormalMode();
}
void loop()
{
if (mcp2515.readMessage(&canMsg) == MCP2515::ERROR_OK)
{
int x = canMsg.data[0];
int y = canMsg.data[1];
Serial.print(\u00ab\u00a0can_id:\u00a0\u00bb);
Serial.print( canMsg.can_id,HEX );Serial.print(\u00a0\u00bb — \u00ab\u00a0);
Serial.print(\u00ab\u00a0Humi: \u00ab\u00a0);
Serial.print(x);Serial.print(\u00a0\u00bb — \u00ab\u00a0);
Serial.print(\u00ab\u00a0Temp: \u00ab\u00a0);
Serial.println(y);
delay(50);
}
}<\/p>\n\n\n\n

Code Emission<\/h1>\n\n\n\n

include SPI.h
include mcp2515.h
struct can_frame canMsg;
MCP2515 mcp2515(10);
void setup()
{
while (!Serial);
Serial.begin(115200);
SPI.begin();
mcp2515.reset();
mcp2515.setBitrate(CAN_500KBPS, MCP_8MHZ);
mcp2515.setNormalMode();
}
void loop()
{
canMsg.can_id = 0x040;
canMsg.can_dlc = 8;
canMsg.data[0] = 2;
canMsg.data[1] = 5;
canMsg.data[2] = 0x00;
canMsg.data[3] = 0x00;
canMsg.data[4] = 0x00;
canMsg.data[5] = 0x00;
canMsg.data[6] = 0x00;
canMsg.data[7] = 0x00;
mcp2515.sendMessage(&canMsg); \/\/Sends the CAN message
delay(200);
}<\/p>\n","protected":false},"excerpt":{"rendered":"

Ref : https:\/\/github.com\/autowp\/arduino-mcp2515 Code Reception include SPI.Hinclude mcp2515.hstruct can_frame canMsg;MCP2515 mcp2515(10);void setup(){Serial.begin(115200);SPI.begin();mcp2515.reset();mcp2515.setBitrate(CAN_500KBPS, MCP_8MHZ);mcp2515.setNormalMode();}void loop(){if (mcp2515.readMessage(&canMsg) == MCP2515::ERROR_OK){int x = canMsg.data[0];int y = canMsg.data[1];Serial.print(\u00ab\u00a0can_id:\u00a0\u00bb);Serial.print( canMsg.can_id,HEX );Serial.print(\u00a0\u00bb — \u00ab\u00a0);Serial.print(\u00ab\u00a0Humi: \u00ab\u00a0);Serial.print(x);Serial.print(\u00a0\u00bb — \u00ab\u00a0);Serial.print(\u00ab\u00a0Temp: \u00ab\u00a0);Serial.println(y);delay(50);}} Code Emission include SPI.hinclude mcp2515.hstruct can_frame canMsg;MCP2515 mcp2515(10);void setup(){while (!Serial);Serial.begin(115200);SPI.begin();mcp2515.reset();mcp2515.setBitrate(CAN_500KBPS, MCP_8MHZ);mcp2515.setNormalMode();}void loop(){canMsg.can_id = 0x040;canMsg.can_dlc = 8;canMsg.data[0] = 2;canMsg.data[1] = 5;canMsg.data[2] = 0x00;canMsg.data[3] = 0x00;canMsg.data[4] […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-684","post","type-post","status-publish","format-standard","hentry","category-projet"],"_links":{"self":[{"href":"http:\/\/www.f4irx.com\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/684","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.f4irx.com\/wordpress\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.f4irx.com\/wordpress\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.f4irx.com\/wordpress\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.f4irx.com\/wordpress\/index.php\/wp-json\/wp\/v2\/comments?post=684"}],"version-history":[{"count":3,"href":"http:\/\/www.f4irx.com\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/684\/revisions"}],"predecessor-version":[{"id":690,"href":"http:\/\/www.f4irx.com\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/684\/revisions\/690"}],"wp:attachment":[{"href":"http:\/\/www.f4irx.com\/wordpress\/index.php\/wp-json\/wp\/v2\/media?parent=684"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.f4irx.com\/wordpress\/index.php\/wp-json\/wp\/v2\/categories?post=684"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.f4irx.com\/wordpress\/index.php\/wp-json\/wp\/v2\/tags?post=684"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}