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Serial interface for the Propeller

Serial interface for the Propeller

The Propeller prototyping board described elsewhere in this issue needs a programming interface, just like the board available from Parallax. The manufacturer offers the Propeller Plug and the Propeller Clip for this purpose. They can be used to link the board to a PC via a USB port. These mini-boards are fitted with an FTDI FT232 IC, which has appeared quite regularly in the magazine. The difference between the Plug and the Clip is in how they connect to the processor board.


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R1,R2,R4,R5,R7 = 10kΩ

R3 = 4kΩ7

R6 = 1kΩ



C1 = 10nF



T1,T2 = BC547

T3 = BC557



K1 = 9-way sub-D socket (female), angled

pins, PCB mount

K2 = 5-way SIL socket

PCB, ref. 070276-1

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