ARC-32 Different board revisions?

Lynxmotion
1

Hello all,

I bought an ARC-32 board a little while ago, and I’m looking at the datasheet from Basic Micro’s set. However, the pinout information on the AUX header mechanically is in a different location and the drawing of the board does not match the board type that I have.

The board that I have are from Lynxmotion, where one of the AUX header is at a right angle near the DC power terminal, and the there is another row of 2x3 header next to the USB plug coming up vertical with jumpers across.

I’m trying to connect a hardware serial of the ARC-32 to the SSC-32 (just like what you would do with a Bot Board) so that I can send hardware serial command from the ARC-32 to the SSC-32.

So my question is, which pins are the hardware serial on the ARC-32?

I’ve attached a picture, sorry it’s fuzzy, but you can see what type of board I’m working with, and it does not match the drawing in the datasheet…

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2

Hi Tom,

I believe this is the same as my Arc32 boards. The hardware serial port is on the connector that is at 90 degrees.

I believe the pins are:

Pinouts: 1=P34 (SCL) 2=P35 (SDA) 3=P36 (TXD2) 4=P37 (SCK2) 5=P38 (RXD2) 6=P39 (AN3) 7=GND 8=VCC
Where the pins on the top row are 2,4,6,8 and the bottom row (closest to the board) is 1,3,5,7 from left to right…

Kurt

3

Heres a diagram of the earier version

ar32.JPG
ar32.JPG755×313 55.5 KB

4

Thanks guys! I noticed the designator on the silk and assumed that it was the same pin-out as it were on the schematic, but this confirms it. Thank you…

Am I to assume that this is a hardware serial port? Also in code, do I assume that this is sethserial2 ?

I currently have the TXD2 wired into the RX of the SSC-32 and set the baud rate on the SSC-32 to be 38Kbps, with tying the common (Pin7 of the AUX2 of ARC-32) to the ground pin next to the RX pin of the SSC-32…