Technical data

4.16.2 LED/IO6 Capabilities
The LED function pin can be used as a general purpose digital I/O when the flashing
LED function is not required. However, this pin does not have an on-board pull-up
resistor. It is required that an external pull-up or pull-down resistor be provided by
the host circuitry when either not used or when used as a digital input.
4.16.3 ADIN4
A further ADC input (in addition to the three dedicated pins) is created by
multiplexing one of the GPIO signals (GPIO5).
4.17 Analogue to Digital Converters (ADIN1, ADIN2, ADIN3, ADIN4)
Pin Name Direction Function
26 ADIN1 Input ADC Input 1
27 ADIN2 Input ADC Input 2
28 ADIN3 Input ADC Input 3
13 ADIN4 Input ADC Input 4 /GPIO5
ADC pins is converted and stored in a register inside the Wireless CPU®. When the
appropriate AT command is received by the Wireless CPU®, the digital value stored in
the register is read.
The Wireless CPU® has a single precision 10-bit ADC, shared by a number of
functions within the Wireless CPU® and also through the external interface
connections (three dedicated, one shared). The ADC sharing arrangement is shown
below.
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GR64 Integrators’ Manual
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