Bluetooth 4.0 shield + CNC Shield V.3?

Other Hardware General Electronics
1

Hello,
I have bluetooth 4.0 shield from Keyestudio (link).
I want to put this shield in the middle like this:

-Arduino UNO R3, then Bluetooth Shield, then CNC Shield V.3 on top of these.

Will CNC Shield (GRBL) and BT Shield work together ? Or there is some shared pins, that create conflicts between these 2 shields?

Thanks

2

Looking at the CNC shield pins used (here) there are no spare pins.
The BT shield uses either pins 0/1 or 2/3.

3

I looked at cnc shield link. I also find BT Shield Wiki, so i conclude that i can use those 2 shields together.

CNC Shield do not use D0 and D1 (RX and TX)

BT Shield Use D0 and D1 to communicate with arduino if i put jumpers on corresponded pins.

Please check pictures and provided Wiki link and correct me if i`m wrong (or confirm, please).
Thanks

4

In #1 I say no pins are free and this is the case as pins 0/1 are the Serial connection used to receive the g-code commands and send status info to the control PC.

You can use pins 0\1 for the BT module as long as you realise the Arduino USB Serial connection also uses these pins. If you just use BT for Serial comms and don't need to connect to a PC serial monitor or program the Arduino then they will be fine.

5

Thanks Riva,
So... is this means that i can extend BT power on/off switch to my control box, and then manually
control input (USB/BT) as i wish?

I assume that when the BT module power is off, the shield just pass through signal from UNO to CNC shield?

Is this correct?

6

I think the only way you would find this out is to speak to someone with the same hardware setup or try for yourself. I don't have the hardware your referring to so cannot be sure if this will work.