SWRU125 Page 4
5 Hardware description CC2430DB
Figure 1: CC2430DB overview
5.1 Powering CC2430DB
The CC2430DB can be powered in three different ways:
•
2.5 mm DC jack connector. This connector is placed under the board. The centre pin
is used for the positive voltage. A 4-10V DC power supply should be used. The
onboard voltage regulator supplies 3.3V to the board.
•
USB power. If the CC2430DB is connected to a USB socket on a PC, it will draw
power from the USB bus. The onboard voltage regulator supplies 3.3V to the board.
•
Battery power. The CC2430DB includes a battery clip for two AA type batteries
If several power sources are connected, the CC2430DB will be powered from the supply that
supplies the highest voltage. The USB MCU is only powered when USB or DC jack power is
used.
USB
connector
Joystick
LED
I/O connector A
I/O connector B
Power switch S3
DC jack
(Reverse)
USB MCU
debug
connector
Pot.
CC2430 Reset
Button S1
USB MCU
Light sensor
CC2430
debug
CC2430
PCB
Antenna
Low current
jumpers
Battery clip
(Reverse)
Accelerometer
Low current
jumpers
EEPROM