
- on Microcontrollers
- Published in issue 7/2007 on page 0
Propeller Prototyping Board for BoeBot

The Propeller chip made by Parallax Inc. is a bit of a strange animal in the world of microcontrollers. This IC consists of eight 32-bit processor cores that are given access one by one to the peripherals and processor memory. This makes the Propeller extremely fast and it can work without the use of an interrupt mechanism: tasks that used to require an interrupt routine can now be run in their own processor core (called a 'COG' in Propeller-speak).
R1 = 270W
R2 = 10kΩ
Capacitors
C1,C2 = 10mF 16V radial
C3,C4,C5 = 100nF
Semiconductors
IC1 = LM2937ES-5.0
IC2 = LM2937ES-3.3
IC3 = 24LC256
IC4 = Propeller chip P8X32A-D40 (Parallax)
Miscelllaneous
X1 = 5MHz quartz crystal
K3 = 4-way SIL pinheader
S1 = on/off switch
S2 = 1 make contact
4 pcs 3-way SIL pinheader
PCB, order code 070275-1