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Zigbot Board


LED & resistor

Decoup Capacitor
R bias resistor

Low pass filter on reset pin

I2c connection to 7 pin header
debug connection to 7 pin

Caps on oscillator

Cap for power

Allegro 3901 with 4 pin header
 Top traces only:

No traces around the balun or antenna

thicker traces for power and ground

power and gnd plane
 Bottom traces only

No traces near antenna or balun

thicker power and gnd traces
 Total board layout

12.5 m by 12 mm = 150 mm^2 = 1.5 cm^2