OBD2_Interface_v2_Release

Released Version

$${\color{red}Disclaimer:}$$
THIS SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES, OR OTHER LIABILITY, WHETHER IN AN ACTION OF
CONTRACT, TORT, OR OTHERWISE, ARISING FROM, OUT OF, OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

THIS SOFTWARE AND HARDWARE ARE PROVIDED FOR EDUCATIONAL AND EXPERIMENTAL PURPOSES ONLY. IT IS THE USER'S
RESPONSIBILITY TO ENSURE COMPLIANCE WITH ALL APPLICABLE LAWS AND REGULATIONS REGARDING VEHICLE DATA ACCESS AND
MODIFICATION.

USE THIS DEVICE AND SOFTWARE AT YOUR OWN RISK. INTERACTING WITH VEHICLE SYSTEMS MAY RESULT IN UNINTENDED
CONSEQUENCES, INCLUDING BUT NOT LIMITED TO ERRORS, SYSTEM MALFUNCTIONS, OR DATA LOSS. THE AUTHORS ACCEPT NO
RESPONSIBILITY FOR DAMAGE TO VEHICLES, DATA, OR OTHER PROPERTY RESULTING FROM THE USE OF THIS DEVICE OR SOFTWARE.

$${\color{red}Important \space Note:}$$
NEVER Connect to a vehicle before you have checked the settings to match the CAN Bus speeds of the car:

And decided if you want to allow the device to send commands, AKN and ERR messages to the car:

${\color{blue}The \space OBD2_Interface_v2 \space (unboxed \space so \space you \space can \space see \space the \space requirements \space to \space build \space yourself):}$

${\color{blue}The \space OBD2_Interface_v2 \space Functions:}$

Save CAN Bus Data from both High Speed and Medium Speed buses onto SD Card and load into SavvyCAN for analysis

${\color{blue}Connections \space and \space Equipment:}$
// Connections to the ESP32-S3 Follow:
Power 5v Switched Supply
GND = GND
12v = VCC In
5v Out = 5v

ESP32-S3 & two MCP2515 Breakout Board (HW-184) - 8 MHz Crystal
MCP2515_0 for 500kbps CAN Bus
SCK = pin 12
SI = pin 11
SO = pin 13
CS = pin 14
GND = GND
VCC = 5v

MCP2515_1 for 125kbps CAN Bus
SCK = pin 12
SI = pin 11
SO = pin 13
CS = pin 10
GND = GND
VCC = 5v

ESP32-S3 OpenLager (SD Card) Connections ("OpenLager" device should not be confused with the slower "OpenLogger")
Rx = Pin 9
GND = GND
VCC = 5v

ESP32-S3 ILI9341 Display (with touch) Connections
T_IRQ = Not Connected
T_DO = 38
T_DIN = 41
T_CS = 37
T_CLK = 40
MISO = 38
LED = 39 (2.5mA)
SCK = 40
MOSI = 41
DC = 42
RESET = 2
CS = 1
GND = GND
VCC = 3.3v

Stop Button
GND = GND
Botton = 21

${\color{red}SPECIAL \space WARNING:}$