ECUMaster GPStoCAN Module

[DerekAE86]

I've been looking at different GPS sources for lat/long/speed/acceleration/etc and reading the manual for this module.

https://www.ecumaster.com/files/devices/gps/gpsV2Manual.pdf

Just curious if its compatible with the Link? Or if there is any .lcs streams already made?

I was trying to construct one myself but couldn't see how to a create a 32bit channel with a 10^7 divider since I can only select up to a 16bit width and 10000 divider?

Also would it be possible to utilize 1 stream to put all the different IDs in as multiple frames?
So if the main CAN ID is 400 for example; make the first frame's ID Position 0 with ID (decimal) 0
Then create the second frame with ID Position 0 and ID (decimal) 1... would that mean it would effectively be ID 401?

[k fuku]

M5 ATOM GPS is used to stream GPS signals to CAN.

https://shop.m5stack.com/products/atom-gps-kit-m8030-kt

The GPS is running on an original program created in blockly format.
I can't seem to handle 32bit with LINK, so I use ECU MASTER's meter to receive the GPS signal.

One idea I came up with is to make the program learn to separate data every 2beyt (16bit).
(GPS to CAN in ECU master can only send 32bit)

For example, 0 and 1 byte for ID 401 
For example, 0 and 1 byte for ID 401, 2 and 3 bytes for ID 402, etc.

I haven't come up with a way to combine the data after receiving it.

　(program)
https://github.com/gok555/M5stack-OBD-CANgauge/blob/main/GPStoCANspeed2HzEspNow.m5f

[tineira]

hey @k fuku I managed to pass data splitting the signed 32 bit value. The problem is if the value is negative, strange things might happen. so I ended up sending the absolute value of the latitude and longitude and splitting each value in three parts a 15 bit number, a 16 bit number and the missing bit I use to send a DI for negative values. Then I created a math channel that reconstructs the value.

 

I'm sending the can messages from an arduino, so this is how I build the message.