User's Manual

BlueMod+S/AI
Hardware Reference
www.stollmann.de Page 10 of 52
2 Block Diagram
nRF51822
VSUP
BlueMod+S/AI
Balun+
Filter
RESET
I2C
UART
SPI
1 2
up to 7
3
GND
3.0V
16MHz
opt. 32kHz
Serial Wire
(DEBUG)
onboard
antenna
2
GPIO
up to 19
Analog In
up to 6
Figure 1: BlueMod+S/AI Block Diagram