Pin Definitions - Wahoo Fitness WF116 Hardware Integration Manual

GEM 2 Module Hardware Integration Guide

Pin Definitions

Pin number Pin Name
0 GND
1 GND
2 SPI Enable
3 LED
4 Programmable I/O
5 Programmable I/O
6 Programmable I/O
7 Programmable I/O
8 NC
9 NC
10 NC
11 NC
12 PAIR
13 UART TX/SPI MISO
14 UART RX/SPI MOSI
15 NFC1
16 NFC2
17 GND
18 VCC
19 UART CTS/SPI Slave
Event
20 UART RTS/SPI SS
21 GPIO/SPI SCLK
22 RESET/SWDIO
23 SWCLK
24 Wake
25 RESET
26 GND
Wahoo Fitness
90 West Wieuca Road, Suite 110
Atlanta, GA 30342
www.wahoofitness.com
1‐877‐978‐1112
Function
SPI mode enable
GPIO to trigger LED for
pairing/connection
indication
ADC or GPIO
ADC or GPIO
ADC or GPIO
ADC or GPIO
RESERVED
RESERVED
GPIO to trigger
advertising
Host interface
Host interface
NFC antenna input 1
NFC antenna input 2
Module Power Ground
Module Power Supply
Flow control
Flow control
GPIO or SPI Clock
Debug Interface
Debug Interface
Wakes module from sleep
Module Reset
Version 0.1
Comment
Connect to GND Plane
Connect to GND Plane
Active High
Reserved for 32kHz
crystal if a real time
clock is needed during
module sleep
Reserved for 32kHz
crystal if a real time
clock is needed during
module sleep
Active low
Connect to GND Plane
7