Let's Make Robots!


Introduction: This is a project I've been thinking about for a long time. I built the hardware some time ago but never had time to put the beacons into use. The … Read more

Cheap CCD or CMOS camera with external sync.


I am doing and experiement where I need 2 camera but the capability of handling an external Sunc signam.
Most of the units I have seen are either too large or too expensive. A single board unit would be perfect.



Hello! Just found out about LMR a week ago and I've learned so much already! This is a great community and a big thanks to all the people contributing to the … Read more


Hi all, I have question about PIC16F877A... I need to interface it with other ICs like 7segment drivers,
and I have to choose between TTL and CMOS technology. But I can't find out on the datasheet if the mcu is in ttl or cmos one.
The final question is: have I to consider the 16f877a a ttl or a cmos IC?
Many THX in advance ;-)