S e n s o r P u c k
Rev. 1.0
9
Figure 9. EFM32G210 MCU
Figure 10 shows the Si7021 RH and temperature sensor as well as the Si1147-M01 optical sensor.
Figure 10. Sensors
Figure 11 shows the BLE module and LEDs.
Connect together then
connect tp power plane
Connect together then
connect tp power plane
DBG_SWCLK
DBG_SWDIO
DBG_SWO
TX
RX
SWDIO PF1
INT
SWO PF2
SWCLK PF0
GREEN
RED
LEU0_TX
LEU0_RX
BLE_WAKE
RESET
HOST_WAKE
I2C0_SDA
I2C0_SCL
BLE_RESET
VMCU
VMCU
VMCU
C5
0.
1uF
C2
0.
1uF
R8
4.
99K
C9
10pF
R10
4.
99K
C4
0.
1uF
C10
10pF
R9
4.
99K
C3
0.
1uF
EFM32G210
U2
PA0
1
PA1
2
PA2
3
IOVDD
4
PC0
5
PC1
6
PB7
7
PB8
8
PC15
24
PC14
23
PC13
22
DEC
21
VDD_DREG
20
PD7
19
PD6
18
PD5
17
PE13
32
PE12
31
PE11
30
PE10
29
IOVDD
28
PF2
27
PF1
26
PF0
25
NRST
9
PB11
10
AVDD
11
PB13
12
PB14
13
IOVDD
14
AVDD
15
PD4
16
VSS/EPAD
0
C8
1.0uF
C7
10uF
C6
0.
1uF
24MHz
U3
XTAL1
1
GND
2
XTAL2
3
GND
4
SDA
SCL
VMCU
C17
0.1uF
U6
Si7021
GN
D
2
VDD
5
SCL
6
SDA
1
NC
3
NC
4
SDA
SCL
INT
+5V
VMCU
U5
2SWLFDO
Sensor
LED2
6
LED3
7
GND
8
LED1
9
LEDA
10
DNC
1
SDA
2
SCL
3
VDD
4
INT#
5
C16
0.1uF
