CAN bus shield init fail?
The CAN Shield uses SPI on pins 11-13 to talk to the Arduino. The Uno and other ATmega328 based Arduinos have SPI on pins 11-13 as well as the ICSP header. The Leonardo does not have SPI on pins 11-13, therefore initialization fails since there is no SPI connection to the MCP2515.
CAN bus shield DB9 pinout?
Default pinout is OBD-II and CAN standard pinout can be selected by switching jumpers on DB9 interface. Moreover, it has the TF card slot for data storage and the CS pin that can be set to D4 or D5. The INT pin can also be set to D2 or D3 by switching jumpers on the back of the shield.
CAN bus transceivers?
The L9615 is a bidirectional transceiver for signal conditioning and processing in connection with a CAN controller. Data rates of up to 500KBAUD are supported using either shielded or non- shielded pair of lines. All voltages, except bus voltage, are defined with respect to pin 2 Positive currents flow into the IC.
Why do we need a CAN bus shield?
CAN-BUS Shield V2.0 – Seeed Wiki CAN-BUS Shield V2.0 CAN-BUS is a common industrial bus because of its long travel distance, medium communication speed and high reliability. It is commonly found on modern machine tools, such as an automotive diagnostic bus.
How to install Arduino library for CAN bus shield?
Insert each CAN-BUS Shield into Seeeduino V4.2, and connect the 2 CAN-BUS Shield together via 2 jumper wires. Shown as below images. Please follow how to install an arduino library procedures to install CAN BUS shield library.
How to connect CAN bus shield to OBDII interface?
DB9 Interface – to connect to OBDII Interface via a DBG-OBD Cable. When you use more than two CAN Bus Shield in one net, you should take the impedance into consideration. You should either cut P1 in the PCB with a knife, or just remove R3 on the PCB.
Can you use more than two CAN bus Shield in one net?
When you use more than two CAN Bus Shield in one net, you should take the impedance into consideration. You should either cut P1 in the PCB with a knife, or just remove R3 on the PCB. The FREE pin is available for the other usages. SPI_CS pin of V1.2 is connected to D9 by default. If you want to change to D10, please follow below instructions.