RE Mote: Enhancements from Rev.A to Rev.B - Zolertia/Resources GitHub Wiki

These are the most important enhancements from Revision A:

Replaced "Low Power PIC" PIC12F635 for PIC16F1509, to extend the number of pins and peripherals
Simplified "shutdown mode" operation, now commands are sent over I2C to the "Low Power PIC"
PIC low power now is powered over battery and USB, solving an errata in battery management
NanoTimer (TPL5110DDCT) was removed and now shutdown scheduling is managed by the RTCC and PIC low power.
Replaced LED RGB (ASMB-MTB0-0A3A2).
RTCC Interrupt 1 is now connected to PD3 pin from CC2538.
Added battery monitoring via the "Low Power PIC", readable over I2C command.
Improved noise prevention in USB transmission lines.
Changed I2C Interrupt/Generic pin to PD0 from CC2538.
Mapped TDI and TDO pins to LED's to save more pins, the LEDs can be disabled if needed by desoldering a resistor.
ADC3 (5VDC supply voltage) impedance was improved
Changed CC1200 LDO to provide a 3.3V supply instead of 3V.
Fixed silkscreen pinout assignations.
Added 1 extra pin exposed on each external connector (JP5 and JP6)
JTAG pins (TMS, TCK) are not exposed on lateral connectors, just only through the JTAG connector.
Pitch between external connectors are now 2.54 mm multiple, compatible with most protoboards.
Modified Battery pin-out orientation over an additional connector, to allow connect the battery with a standard connector and place inside the RE-Mote enclosure
Improved labelling on PCB for correct indication to user (USB and switch indicators, ...).
PA6 and PA7 mapped to the microSD SEL/CSn are exposed in the JP5 connector, to allow use as ADCx/AINx if a 0Ohm resistor is removed

Main features improved:

features	RE-Mote Rev.A	RE-Mote Rev.B
PIC Low Power	PIC12F635	PIC16F1509
PIC Low Power Supply	Battery	Battery or USB
nanoTimer	Yes	No
Led RGB	CLV1A-FKB-CJ1M1F1BB7R4S3	ASMB-MTB0-0A3A2
RTCC Interrupt 1	PA3 (CC2538 pin)	PD3 (CC2538 pin)
Battery monitor	No	Measured by PIC Low Power