![](/html/04/041a/041a431c96efcb4191e512ea04e1f72ca9dc4734c145663f594e2e224ba78da5/bg1.png)
STEVAL-IHP002V2
Smartplug system to measure and control AC loads based on the
STM32, ST7540 PLM and STPM01
Data brief
Features
■ Energy measurement by the STPM01
■ Power line communication by the ST7540 up to
4.8 kbps
■ USART connectivity or expansion connector
■ Output with two contacts (NO/NC) and
common contact for generic load
■ Designed to fit a standard "503" wall box
■ RoHS compliant
Description
The STEVAL-IHP002V2 demonstration board
implements a PLM smartplug node which allows
monitoring the energy consumption of a mains
plug and controlling any kind of load in on/off
mode through a relay.
The board is based on the STM32F103CB
microcontroller, the ST7540 PLM module and the
STPM01 mono-phase energy metering IC.
The board is designed to fit a standard "503" wall
box.
The voltage, current, power, active energy and the
output status can be sent to a PLM data
concentrator through a power line communication
network on request. Moreover, if the power
consumption changes, it is sent asynchronously
to the data concentrator.
March 2012 Doc ID 022253 Rev 1 1/10
For further information contact your local STMicroelectronics sales office.
www.st.com
10
![](/html/04/041a/041a431c96efcb4191e512ea04e1f72ca9dc4734c145663f594e2e224ba78da5/bg2.png)
Circuits schematic STEVAL-IHP002V2
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1 Circuits schematic
Figure 1. Top-level schematic
2/10 Doc ID 022253 Rev 1
![](/html/04/041a/041a431c96efcb4191e512ea04e1f72ca9dc4734c145663f594e2e224ba78da5/bg3.png)
STEVAL-IHP002V2 Circuits schematic
AM10555v1
L
N
VCC_3V3
VCC_12V
R611kR61
1k
+
C117
4.7uF 400V
+
C117
4.7uF 400V
R110
22 1W
R110
22 1W
D17
LL4148
D17
LL4148
+
C120
2.2uF+C120
2.2uF
R112
10k
R112
10k
C118
470pF 400V
C118
470pF 400V
1
2
R111
120K
R111
120K
C124
1nF
C124
1nF
1
2
DL1
RED
DL1
RED
C122
470nF
C122
470nF
1
2
T2T2
1
3
5
2
4
8
R11310R113
10
+
C96
47uF 25V
+
C96
47uF 25V
+
C116
4.7uF 400V
+
C116
4.7uF 400V
L9
10uHL910uH
1 2
R118
10K
R118
10K
-
+
D14
BRMB6S-RC
-
+
D14
BRMB6S-RC
2
3
1
4
D15
STPS1H100A
D15
STPS1H100A
+
C95
100uF 16V
+
C95
100uF 16V
+
C119
470uF 16V Low ESR
+
C119
470uF 16V Low ESR
R116
2.2
R116
2.2
R11722R117
22
L8
470uHL8470uH
1 2
C121
2.2nF
C121
2.2nF
1
2
C123
10nF
C123
10nF
1
2
R114
27K
R114
27K
D16
STTH1L06A
D16
STTH1L06A
IC3
LD1117ADT33TR
IC3
LD1117ADT33TR
VOUT
2
VIN
3
GND
1
R115
4.7K
R115
4.7K
2.5V
COMP
SOURCE
DRAIN
VDD
+
-
CURRENT
CONTROL
IREF
GND
FB/ZCD
NC
U13
ALTAIR05T-800
2.5V
COMP
SOURCE
DRAIN
VDD
+
-
CURRENT
CONTROL
IREF
GND
FB/ZCD
NC
U13
ALTAIR05T-800
6
7
13
5
4
3
1
14
16
2
15
8
9
10
11
12
Figure 2. Power supply section
Doc ID 022253 Rev 1 3/10