[W8BH] attended a talk by another ham, [W8TEE] that showed a microcontroller sending and receiving Morse code. He decided to build his own, and documented his results in an 8 part tutorial. He’s using ...

Hospital codes refer to emergency situations, but these codes are different for each hospital. For example, “code blue” may refer to a life threatening medical emergency. Other codes refer to a fire, ...

Hospitals often use code names to alert staff to an emergency. Code blue means a medical emergency. Code red means fire or smoke. Code black typically means there is a bomb threat. Hospitals are the ...