GEM 2 Module Hardware Integration Guide
Version 0.1
Wahoo Fitness
5
90 West Wieuca Road, Suite 110
Atlanta, GA 30342
www.wahoofitness.com
1‐877‐978‐1112
Specification
Specification Summary
Category
Feature
Implementation
RF
Bluetooth
ANT+
Frequency
Maximum Transmit Power
Minimum Transmit Power
Receive Sensitivity
Range
4.1 Single Mode Peripheral
Broadcast
2.402‐2.480 GHz
+4dBm
‐20dBm
‐96dBm
up to TBDm line of sight
Peripherals
UART Host Interface
GPIO
TX, RX 115.2kbps n,8,1
Link Indicator
Pairing Button
FW Upgrade
Wahoo Firmware
Over the air
Via JTAG interface
Control Protocol
GEMSAFE or GEMHCI
CSAFE Command Interface
or GEM HCI binary command
interface
Supply Voltage
Min
Max
Recommended
1.7V
3.6V
3.0V
Power Consumption
TBD
Physical
TBD.mm x TBDmm
Environmental
‐40 to +85C
Approvals
FCC, IC, CE, Bluetooth EPL
