Nordic 3 - Motion Tracking Device

6 Hardware description: Smart Remote 3 nRF52 product example
Doc. ID 4374_139 v1.1
Page 48
V
D
D
1
4
ADC3
13
GND
12
C
S
8
S
DO
/
S
A
0
7
INT1
11
RES
10
INT2
9
VDD_IO
1
S
D
A
/
S
D
I
/
S
D
O
6
GND
5
SCL/SPC
4
NC
2
NC
3
A
D
C
2
1
5
A
D
C
1
1
6
U7
LIS3DH
C37
10
µ
F
C36
100nF
C45
100nF
I2C address: 0x18
I2C_DATA_2
VDD
VDD
VDD
I2C_CLK_2
LIS3DH_INT1
R18
N.C.
R19
0R
Figure 35: Accelerometer circuit
The accelerometer has I
2
C outputs and can detect motion on 3 axes. The sensitivity is configurable to ±2 g/±4
g/±8 g/±16 g.
6.3.4 Motion tracking device
For advanced features, the remote control has a three-axis gyro integrated with a three-axis accelerometer
(U6).