rt #define SIX 1+5 #define NINE 8+1 uart_send(SIX * NINE == 42 ? "6*9=42" : "this sentence is FALSE."); GND screw pi/4 \\m/ rock i'm free! AIN pwr plane gnd plane >NAME >VALUE >NAME >VALUE Dual In Line >NAME >VALUE Dual In Line package type P >NAME >VALUE RESISTOR type 0204, grid 5 mm >NAME >VALUE RESISTOR type 0204, grid 7.5 mm >NAME >VALUE TANTALUM CAPACITOR >NAME >VALUE USB connector >NAME >VALUE E L E C T R O N I C S DIODE diameter 2.54 mm, horizontal, grid 10.16 mm >NAME >VALUE CRYSTAL >NAME >VALUE VOLTAGE REGULATOR >NAME >VALUE O I A Dual In Line Package >NAME >VALUE PIN HEADER >NAME >VALUE EAGLE Design Rules The default Design Rules have been set to cover a wide range of applications. Your particular design may have different requirements, so please make the necessary adjustments and save your customized design rules under a new name.