On the schematic:
I think itâs not the most recent one⌠not sure, we changed 15v to 12v_board.
+12v in = battery input
+15v = polarity protected 12v output from board. You can use it to feed a pressure sensor
LEFT = PWM left to motor / left valve
RIGHT = PWM right to motor / right valve
LOCK = 12v output for a 6/2 valve or a automotive relay to switch something when you enable autosteer
Udc = 12v output for Danfoss when enable autosteer
Us = 3-9v output for Danfoss control (comes from TLC081p chip
Mcp1584 = 3.3v reg for Bynav module
Mcp2562 is canbus chip, future development, there is no code which uses this chip at the moment on this board
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Thank you for the reply, a lot of work till now for making this new AIO PCB ready for us
Some have already ordered them and soon the final release is out.
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Which are the parts that arenât needed if I donât want to use Danfoss or CAN bus, but an electric motor?
Jhmach, the cost of parts per board are $42 according to the BOM, that means by having only 2 boards assembled you save at least $126, which I think counts as âsaving much moneyâ. Am I missing something?
When ordering a PCB, JLCPCBâs âSelect partsâ page lists designator U4âs and U5âs quantity as 0, but the BOM says the quantity should be 1 for each of them per board. JLCPCBâs part list also says âinventory shortageâ next to U4 and U5, but other parts have this next to them too, and their quantity is listed as expected. Why is this happening?
It appears there are some motors being used that are 10 amp full load. The PCBs do not have large enough traces to carry that current. Below are 2 options to increase the current carrying capacity to ensure that the traces donât burn through on a full load situation.
Just solder an insulated wire on the under side of the board as in these pictures.
Wire calculator shows 20ga minimum wire size. I would use 18ga for safety factor.
Thanks, @Jhmach for all your help. Due to the shortage of parts for the Danfos valve and canbus, could you add a copy of the BOM for those who are not planning on using either?
