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| #REDIRECT [https://lechacal.com/docs/RPICT/RPICT3T1/] | | #REDIRECT [https://lechacal.com/docs/RPICT/RPICT3T1/] |
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| [[File:IMG_0537_small.png | 300px | right]]
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| [[File:IMG_0533_small.png | 300px | right]]
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| This page is for board specific information. More information can be found on the [[Raspberrypi_Current_and_Temperature_Sensor_Adaptor | generic page for RPICT series]].
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| Information shown here also applies for [[RPIZ_CT3T1]] and [[RPICT3T1_RLY2]].
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| [[File:Link_to_the_shop.png | link=http://lechacalshop.com/gb/rpict-series/26-raspberrypi-1x-current-sensor-adaptor-1-voltage-emoncms.html]]
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| ==Overview==
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| The RPICT3T1 measures AC Power and Temperature.
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| * 3x AC current sensor
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| * 1x DS18B20 Temperature Sensor
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| * Attiny84 Microcontroller
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| ==Notice==
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| Power is computed using a fixed estimated Voltage. This estimated voltage can be configured. Default value is 240V. You will be able to change this to 110 or 230 depending on the country where it is used.
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| If you require more accurate power measurement then use the [[RPICT3V1]] board instead. This will also read Voltage and calculate Real Power. A voltage sensor will be required in this case.
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| ==Compatibility==
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| [[File:IMG_0535_small.png | 300px | right]]
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| {| class="wikitable"
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| |+
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| |-
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| !Version
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| !Compatible?
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| |-
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| |Raspberrypi 1 A
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| |Yes
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| |-
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| |Raspberrypi 1 B
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| |No mounting holes.
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| |-
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| |Raspberrypi 1 B+
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| |Yes
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| |-
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| |Raspberrypi 2 B
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| |Yes
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| |-
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| |Raspberrypi 3 B
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| |Yes
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| |-
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| |Raspberrypi 3 B+
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| |Yes
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| |-
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| |Raspberrypi 4 B
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| |Yes
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| |-
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| |Raspberrypi 5
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| |Yes
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| |-
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| | Raspberrypi Zero
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| | Use [[RPIZ_CT3T1]] instead
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| |}
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| * Asus Tinkerboard has been reported to work with RPICT units. Note we wont be able to provide support for the Tinkerboard.
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| ==Recommended sensors==
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| * AC Current sensor:
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| ** SCT-013-000
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| ** SCT-019
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| ** SCT-006
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| ** SCT-024 400A/100mA
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| ** SCT-031 600A/100mA
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| ==Temperature Sensor==
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| The DS18B20 temperature sensor can be connected directly to the screw terminal connector.
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| Connection is as follow:<br>
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| Vcc - Red<br>
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| Din - Yellow<br>
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| Gnd - Black<br>
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| [[File:IMG_1176_small.png | 200px]]
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| Using the latest sketch 3.3 up to 8 temperature sensors can be connected.
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| See also the DS18B20 Junction Board for sale [http://lechacalshop.com/gb/internetofthing/80-ds18b20-junction-board.html here].
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| [[File:IMG_0108_small.png | 300px |link=http://lechacalshop.com/gb/internetofthing/80-ds18b20-junction-board.html]]
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| ==Configuration==
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| See general instructions for
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| [[Attiny Over Serial Configuration | Configuration over serial for sketch version 1.2 1.3 & 2.0]].
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| [[Attiny Over Serial Configuration A2 | Configuration over serial for sketch version 3.0]].
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| ==Calibration==
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| If calibration is required only ICAL has any effect on the calibration.
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| VCAL and PHASECAL might be present in the config but have no effect. These should be ignored for the RPICT3T1.
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| ==Default Data Output==
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| Using the manufacture firmware the data output is:
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| NodeID P1 P2 P3 Temperature
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| P1 P2 P3 in Watt.
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| Temperature in Celsius.
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| P1 being the estimated Power using CT1. `Estimated Power` computes power multiplying Irms by Vest. Where Vest is the estimated Voltage setup in the config. By default Vest=240V we recommend to change this to 220V or 110V if your local voltage supply differ.
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| If you prefer having current in Amperes rather than Power in Watt set VEST=1 in the configuration. In the same manner you can set VEST=1000 to get milliAmperes.
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| ==Restore Default Config==
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| You should have received a key when acquiring the unit. Use this key to download and restore the default configuration.<br>
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| If the key was XXXX then execute these commands below. Replace XXXX with your own key.
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| $ wget lechacal.com/hardware/c/XXXX.conf
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| $ lcl-rpict-config.py -w XXXX.conf
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| ==Emoncms Config (Emonhub)==
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| For default configuration. Used as single board only (not stacked).
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| <nowiki>[[11]]</nowiki>
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| nodename = RPICT1T1
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| firmware = RPICT3T1_V1_1.ino
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| hardware = RPICT3T1
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| [[[rx]]]
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| names = Power1,Power2,Power3,Temperature
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| datacode = 0
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| scales = 1,1,1,1
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| units = W,W,W,C
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| ==Python demo script==
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| First of all make sure you have python-serial package installed
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| $ sudo apt-get install python3-serial
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| Then copy the following into an executable file and run it.
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| <syntaxhighlight lang="python">
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| #!/usr/bin/python3
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| import serial
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| ser = serial.Serial('/dev/ttyAMA0', 38400)
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| try:
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| while 1:
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| # Read one line from the serial buffer
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| line = ser.readline().decode().strip()
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| # Create an array of the data
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| Z = line.split(' ')
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| # Print it nicely
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| print ("----------")
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| for i in range(len(Z)):
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| if i==0:
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| print ("NodeID: %s" % Z[0])
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| elif i in [1,2,3]:
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| print ("Power %d: %s W" % (i, Z[i]))
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| elif i==4:
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| print ("Temperature: %s C" % (Z[i]))
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| except KeyboardInterrupt:
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| ser.close()
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| </syntaxhighlight>
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| To get the above example just enter the command below.
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| wget lechacal.com/RPICT/example/RPICT3T1_DEMO.py.zip
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| unzip RPICT3T1_DEMO.py.zip
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| and run it using
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| python3 RPICT3T1_DEMO.py
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| ==Files==
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| Please verify which board version is yours. This is written on the circuit board itself.
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| ===Hardware Version 1.3===
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| [[File:IMG_0536_small.png | 300px | right]]
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| [http://www.lechacal.com/RPICT/CT3T1/RPICT3T1_v1_3.ino Default Sketch v1.3]<br>
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| [http://www.lechacal.com/RPICT/CT3T1/RPICT3T1_v1_4.ino Default Sketch v1.4]
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| ===Hardware Version 2.1===
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| [http://www.lechacal.com/RPICT/CT3T1/RPICT3T1_v3.1.ino Default Sketch v3.1]<br>
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| [http://www.lechacal.com/RPICT/CT3T1/RPICT3T1_v3.2.ino Default Sketch v3.2]<br>
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| [http://www.lechacal.com/RPICT/CT3T1/RPICT3T1_v3.3.ino Default Sketch v3.3] → current default for sold units.<br>
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| ==CAD Drawing==
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| [[File:Rpict3t1_drawing_01.png | 300px]]
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| ==Related Pages==
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| [[Howto_setup_Raspbian_for_serial_read]]
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| [[Gen3_Passive_Component_Setup]]
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| [[How to program an Attiny85 or Attiny84]]
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| [[Advanced - RPICT3T1 MCU Pinout]]
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| [[Use Emonhub with RPICT]]
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| [[Flash RPICT Attiny84 with Arduino UNO]]
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