Arduino energy monitor, using SCT-013-030 current sensors
Project Links :
This is a full energy monitor project :
- You can manage 1 to 6 sensors.
- You can configure it through USB (see below).
- It can communicate through USB, with any homemade software.
- It can communicate with any Home Automation System supporting MySensors (I'm using Domoticz).
- Full source is provided, you can customize it.
Needed parts :
- Before to print case, you can specify how many sensors you have.
- You can define the exact number of sensors, or plan more. Each socket will be pre-cut for future use.
- Follow joined scheme for assembly.
- Each sensor have to be connected to A0, A1 and so on...
- Upload sketch to the Arduino Nano.
- Connect it to any computer for configuration (see below).
- Let's play...
Configuration parameters :
- Number of sensors,
- Sensor calibration (Vrms, ICal, IOffset),
- Sample frequency,
- Transmission frequency,
- Toggle MySensors on/off,
- Toggle serial output on/off.
Configuration will be saved to eeprom.
Using serial console, you can communicate with the sensor.
For example, using minicom (? for show help) :
$ minicom -b 115200 -D /dev/ttyUSB0
__ __ ____
| \/ |_ _/ ___| ___ _ __ ___ ___ _ __ ___
| |\/| | | | \___ \ / _ \ `_ \/ __|/ _ \| `__/ __|
| | | | |_| |___| | __/ | | \__ \ _ | | \__ \
|_| |_|\__, |____/ \___|_| |_|___/\___/|_| |___/
Energy Sensor has powered up
Energy Sensor (can use up to 6 sensors)
F0: : Sample frequency in seconds (F0:5)
F1: : Send frequency in seconds (F0:60)
E#:[0|1] : Enable Sensor # (E0:1[;E1:1])
V<#:val> : Set Vrms (V0:230[;V1:230])
C<#:val> : Set ICal (I0:29.95[;I1:29.98])
O<#:val> : Set intensity offset (O0:0.05[;I1:0.07])
S[0|1] : Toggle Serial output
T[0|1] : Enable MySensors transmission
M<#> : Sensor mode (1: power, 2: current, 3: power+current)
all commands are case insentitive
Latest lines show current configuration.
If you are using SCT-013-000 instead of SCT-013-030, you have to add burden resistor.
NRF24L01 may have connection issues. You have to add 10µF capacitor between PWR and GND.
You'll be handling dangerous voltages.
I decline any responsibility in case of any incident or accident.