All Questions
34
questions
0
votes
1
answer
61
views
Resolving CAN Communication Issue: Decoding and Fixing 'BUSPASSIVE BUSWARNING'
I set up a communication system (J1939) using two MCP2515 modules connected to two Arduino UNO boards. Then, I added a PCAN USB interface to monitor messages using PCAN View Software. Everything was ...
1
vote
1
answer
157
views
CAN bus with 3 nodes problem
I am testing a CAN bus network with 3 nodes. What I mean by node is a esp32 which has a CAN controller and a tja1051 transceiver module. There seems to be no problem when here are just two nodes but ...
- 23
2
votes
3
answers
819
views
Sending a float type values over CANBUS
I need help in sending float-type values over CANBUS.
I'm working on data acquisition of an fsae car. I'm using Teensy 4.1 and Teensy 3.5 using MCP2562 and MCP2551 CAN transceivers (respectively) to ...
- 61
2
votes
1
answer
1k
views
I can't get my ESP32 to read a CAN bus through an SN65HVD230 in real time
I am working on a project based on the ESP32 processor and Arduino framework, which communicates with another board via CANBUS protocol.
The bitrate is 125k so it is presumably "fast".
I am ...
- 41
1
vote
1
answer
236
views
Convert RS232 signal to I2C/CAN/MAVLink signal
I have an airspeed sensor that outputs a RS232 signal: https://www.aeroprobe.com/micro-air-data-system/. I want to connect this sensor to the Pixhawk in order to use the data for my controller ...
- 111
1
vote
1
answer
193
views
STM32 CANTX line always idle
I'm trying to learn about microcontrollers in general and at this point I'm trying to learn about the CAN bus standard by using it with an STM32 MCU in a NUCLEO-F767ZI board.
For that end I want to ...
- 11
0
votes
2
answers
408
views
Problem interfacing SD card module and CAN bus MCP2515 module simultaneously on Arduino Uno
I am trying to log data received from a CAN bus to an SD card using an arduino Uno.
Each module works perfectly on its own, but when joining both modules together the CAN bus receives data normally, ...
4
votes
3
answers
4k
views
Stand alone CAN bus module or STM32 embedded CAN?
I have spent days studying and trying to achieve simple communications with CAN bus from scratch using stm32f1, but I still have not achieved the desired results and it is difficult to understand and ...
- 427
0
votes
1
answer
1k
views
MCP2525 not initialized for CAN bus implementation
https://github.com/coryjfowler/MCP_CAN_lib/blob/master/examples/CAN_loopback/CAN_loopback.ino
I'm using this library to implement CAN bus and I am using the loopback mode example using a single ...
1
vote
0
answers
1k
views
CAN BUS circuit using arduino and STM32 not receiving data
I tried to connect arduino uno R3 to STM32 using MCP2515 CAN bus transceiver. This was the transmitter code:
...
- 71
0
votes
1
answer
69
views
Connecting two ports of arduino together
I want to implement the working of a CAN transceiver using Arduino. But the problem is - I have only one Arduino. So, I thought of sending and receiving signals using different ports of the same ...
- 71
0
votes
1
answer
261
views
Uninterrupted power supply for keeping arduino nano active always
I have an Arduino nano running some CAN Bus program which does certain things on my car's instrument cluster. The Arduino board is currently powered from the car's 12V cig lighter socket using a 12 to ...
- 21
0
votes
1
answer
508
views
CAN communication between mcp2551 & tja1050 transceivers
I am trying to have 2 arduinos one connected to mcp2515(controller)& mcp2551(transceiver) , the other is mcp2515(controller) & tja1050(transceiver). I tested the setup by sending CAN messages ...
0
votes
2
answers
833
views
CAN bus communication. Issue with two slaves having same CAN ID
Does anyone know if it is possible to have CAN offsetting in case two slaves in same circuit transmits different data in same ID?? I have two slaves with same CAN ID transmitting data and I cannot ...
-1
votes
1
answer
3k
views
MCP2515 CAN Transceivers can't go higher than 125kbps
So firstly, you'll have to excuse my lack of electronic knowledge and popper terminology, this is my first crack at anything outside of the software world.
I have 2 MCP2515 CAN Transceivers (the cheap ...
- 101