4 Jun
2018
4 Jun
'18
11:30 a.m.
On 6/3/18 11:42 PM, Scott Weis wrote:
Isn’t the URI 5v logic?
GPIO on the chip is not, as the core runs at 3.3v. You'll need a simple logic converter. If you want a ready made one: https://www.amazon.com/dp/B0148BLZGE/ref=cm_sw_r_cp_ep_dp_gbB2zbJRTFMKV A FET and couple resistors will work too, you don't need to switch at anything approaching a data rate. I have some details on this here as part of interfacing a quantar to allstar. http://wiki.w9cr.net/index.php/Allstar_and_P25_on_Quantar -- Bryan Fields 727-409-1194 - Voice http://bryanfields.net