Elektor Team
About the article

USB Stick with ARM and RS232

Gigabyte Flash drive for microcontrollers

USB Stick with ARM and RS232
This neat stand-alone memory stick can store or transfer data from a microcontroller system in the field to a PC using its built-in USB and RS232 ports. Add to that an LCD and the simple to use datalogging mode is just the icing on the cake!
Downloading of this magazine article is reserved for registered users only.
Login | Register now!
Component list
R1 = 1k potentiometer, SMD, 1% (optional, see text)
RN1,RN2 = 4-way 10k resistor array, 5%
R6, R11 = 1k5 (SMD 0805, 1%)
R7,R8 = 22? (SMD 0805, 1%)
R9 = 27k (SMD 0805, 1%)
R10 = 39k (SMD 0805, 1%)
C1,C2,C23 = 3µF3 (SMD 3528, tantalum, 20%)
C3,C5,C6,C7,C8,C9,C10,C24,C25 = 100nF (SMD 0805, 10%)
C4,C13,C17,C22 = 1nF (NP0, SMD 0805, 5%)
C12,C16 = 10nF (SMD 0805, 10%)
C14,C15,C18,C19,C20,C21 = 15pF (SMD 0805, 5%)
C26,C34,C35,C36,C38 = 1µF (SMD 0805, 10%)
IC1 = AT91SAM7S64 (programmed, order code 060006-41)
IC2 = LP2985A-33DBVT (SOT23, Texas Instruments)
IC11 = MAX232 (SO16, Maxim)
X1 = 12MHz quartz crystal (SM49)
F1 = 140mA Polyswitch
L1 = choke, MLB-201209-0080AI (Kitagawa)
CON1 = card holder for SD/MMC cards
CON2 = 9-way sub-D socket (female), angled pins, PCB mount
ST1 = USB-A plug, PCB mount, e.g. Assmann A-USB-A-SMT (Reichelt USB AGF)
JP1,JP2 = 4-way SIL pinheader, lead pitch 0.1 in
JP3 = 21-way pinheader, lead pitch 0.1 in
PCB, order code 060006-1 (unpopulated) or 060006-91 (assembled and tested, see Elekor SHOP)
Project software, file 060006-81.zip, free download
Loading comments...