Will I be needing this adapter to connect it the 0-10V DAC board and the RPI?
And, do I need just these two components (0 to 10 VDC DAC board and I2C shield) to create the desired 0-10 VDC signal to control the fan speed via RPI? It is important that I have access to the full range of 0-10 VDC otherwise I cannot put the fan in full speed. I was reading on another post about having a " PCA9306 I2C Data and Power Level Shifter 0.3VDC" not sure if I will need that also.
Also, what is the difference between the above product and this?
Thanks for your help, so far! I’m still pretty new to this. Ok, Could you please tell me what hardware I need to purchase to be able to get the 0- 10 VDC (or close to it, i.e. 9VDC is ok too).
The shield.
The 0 to 10 VDC DAC board
So, I do NOT need the PCA9306 I2C Data and Power Level Shifter? It sounds like the shield level shifts to 5V, can you confirm?
Which RPI supports 5V? I thought they were all 3.3 V?