hi, i am trying to connect rf module with 8051. i have connected rf module using UART. i have transmitted and received the data but am not able to compare it with stored value at the receiver end. Also there is some voltage drop in the receiver output as soon as i connect the Rx pin to the reciever module. Can anyone help?? thnaks.
When people who write datasheets are wrong, we shouldn't redefine the use as correct but instead insist on using correct definitions. Someday, the people who do write the incorrect datasheets might possibly learn that TTL is a very specific term for a specific concept involving bipolar transistors and with totem-pole outputs that can't get near the VCC rail.