User's Manual

2.3 Power
The module must be powered externally with a DC voltage between 3.3 and 5.5VDC. The current draw
of the module is listed below.
Transmit Peak = 250mA
Receive = 50mA
Standby = 25mA
Sleep = <1mA
2.4 External I/O
The Calamp WPAN Module contains a variety of digital and analog external I/O. This I/O can be used
to interface with external sensor or logic. Unless otherwise noted the following ratings cover the
following pins (GPIO1-6, SYSRESET, PWR_ENABLE, UART, and SPI).
Parameter Rating
Vin (Logic 1) Min 2.4V
Vin (Logic 1) Max 3.3V
Vin (Logic 0) Min -.3V
Vin (Logic 0) Max 1.26V
Output Current (all except GPIO2 and GPIO4) 4mA
Output Current (GPIO2, GPIO4) 8mA
All GPIOs can be used as standard digital I/O with the specifications above. Some GPIOs can be
configured as other I/O options described below.
Analog: Pins with the analog functionality are connected to the internal ADC of the module. The pins
can read any voltage between 0 and 3V.
Interrupt: These pins can be configured as an interrupt for the main application processor on the
module.
Timer: These pins can be configured as timer I/O based on the internal clock of the module.
GPIO Function
GPIO1 Digital Only
GPIO2 Digital, Timer, High Current
GPIO3 Digital, Analog, Timer
GPIO4 Digital, Analog, Interrupt
GPIO5 Digital, Analog
GPIO6 Digital, Analog