5.4 Revision 1
Revision 1 is the initially released revision with limited distribution.
The holes along the edge of revision 1 are not staggered as described in Using Pin Headers and requires that any pin headers must be soldered into the board for use.
Revision 1 does not have the Target Power strap described in Low-Power Measurement. Instead, the current can be measured across the Power Supply strap, as described in Programming External Microcontrollers.
