ConX Pi CAN Bus Classic 2.0B RS485 RTU Modbus HAT met POE en stroom meting V5

Beschrijving

Pi HAT for Raspberry Pi or Orange Pi:
– CAN Bus (on SPI channel with MCP2515 controller and SN65HVD230 transceiver)
– Modbus RS485 RTU (on UART RX/TX channel with SP3485EN transceiver)

with:

– OLED 128×32 (on I2C channel)
– PoE meting INA219 stroom sensor 36V 3A max (on I2C channel)

RPI INSTALLATION:

=== TURN ON I2C INTERFACE ===

sudo raspi-config

enable SPI and I2C then REBOOT

=== INSTALL SOFTWARE ===

sudo apt-get install -y can-utils i2c-tools

=== CHECK HARDWARE ===

optional, check i2c devices:

sudo i2cdetect -y 1

result for INA219 en OLED Display:

0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f

00:                         — — — — — — — —

10: — — — — — — — — — — — — — — — —

20: — — — — — — — — — — — — — — — —

30: — — — — — — — — — — — — 3c — — —

40: 40 — — — — — — — — — — — — — — —

50: — — — — — — — — — — — — — — — —

60: — — — — — — — — — — — — — — — —

70: — — — — — — — —

sudo nano /boot/config.txt

add (before [cm4]):

dtparam=spi=on

dtparam=spi_dma4

dtoverlay=mcp2515-can0,oscillator=16000000,interrupt=25,spimaxfrequency=500000

dtoverlay=spi-bcm2835-overlay

sudo nano /etc/network/interfaces

add (250KBIT = 250000):

auto can0

iface can0 inet manual

    pre-up /sbin/ip link set can0 type can bitrate 250000 triple-sampling on restart-ms 100

    up /sbin/ifconfig can0 up

    down /sbin/ifconfig can0 down

REBOOT

=== CHECK HARDWARE ===

candump can0

Voor meer informatie gaarne contact.