Hi, can somone please tell me if there is a board that is 5v compatible and has a digital to analog converter pin. I have spent hours searching but have not found a solution without using a separate dac board. Thanks.
Hi,
What is the application?
What is wrong with using an external DAC?
Tom... 
Nothing but just thought if they make a board that has it all onboard it would be a easier cleaner installation.
I need to read an analog voltage and then write a slightly modified voltage on another pin.
Hi,
From what I've used, the 5V requirement is the obstacle, 3V3 controllers not problem for DAC.
Tom....
Thats what I come across in my research. I was hoping someone on this sight may be able to point me in the the right direction. If I can't get one I will just use an external dac.
What for.
Can make an 8-bit D/A with a PWM pin a resistor and a capacitor.
Leo..
Voltage needs to be very accurate and can change rapidly between .5v and 4.5v.
Hi,
I have been working with MCP4725 DAC which might be worth you looking at.
It is I2C comms and has a good choice of Arduino Libraries.
It is obtainable in a breakout board for prototyping.
Tom..
Thanks Tom. I will give it a go.