Pulsin Math question

[ruijc]

Thanks Mister-e

... that can offer happy debugging times !!!

Thanks Acetronics

To protect the hardware i was thinking of placing a 220 Ohms resistor between the RX and the Pic.

Hope it works

.

[Acetronics2]

To protect the hardware i was thinking of placing a 220 Ohms resistor between the RX and the Pic.

.

From the Rx outputs , one might consider not to draw more than 1 mA in all circumstances ... so, 4.7k in series, and 100k for an input Pulldown are safe values. 47k in series do not introduce significant noise levels ( 470k then for Pulldown !!! )

Alain

[ruijc]

Thanks for the tip Acetronics,

OK...( let's see if i understood ) will use the 4K7 between RX and Pic and the 100K pulldown for the pic's input pin.

Thanks