sem/OBD2-car-display
1
0
Fork 0
mirror of https://github.com/SemvdH/OBD2-car-display.git synced 2025-12-15 20:21:03 +00:00
Code Issues Packages Projects Releases Wiki Activity

tested ELM327 connection and refactored bt driver to include elm327

Browse Source
This commit is contained in:
Sem van der Hoeven
2024-01-18 23:29:16 +01:00
parent 249f22c053
commit 6ffb01b535
4 changed files with 41 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

57
test_elm327/test_elm327.ino Normal file
View File

@@ -0,0 +1,57 @@
#include "ELMduino.h"
#define ELM_PORT Serial2
ELM327 myELM327;
uint32_t rpm = 0;
void setup()
{
#if LED_BUILTIN
pinMode(LED_BUILTIN, OUTPUT);
digitalWrite(LED_BUILTIN, LOW);
#endif
Serial.begin(115200);
ELM_PORT.begin(115200);
// int bt_state = digitalRead(11);
// while (bt_state == 0)
// {
// bt_state = digitalRead(11);
// Serial.println(bt_state);
// Serial.println("bt not connected");
// delay(500);
// }
Serial.println("bt connected");
Serial.println("Attempting to connect to ELM327...");
if (!myELM327.begin(ELM_PORT, true, 20000))
{
Serial.println("Couldn't connect to OBD scanner");
while (1);
}
Serial.println("Connected to ELM327");
}
void loop()
{
float tempRPM = myELM327.rpm();
if (myELM327.nb_rx_state == ELM_SUCCESS)
{
rpm = (uint32_t)tempRPM;
Serial.print("RPM: "); Serial.println(rpm);
}
else if (myELM327.nb_rx_state != ELM_GETTING_MSG)
myELM327.printError();
}