CalAmp 500005 Manual De Usuario
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.
of the module is listed below.
Transmit Peak = 250mA
Receive = 50mA
Standby = 25mA
Sleep = <1mA
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