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the sorcery of copper

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spark_counter [2015/10/25 17:27] – better add projects kingkevinspark_counter [2015/10/25 18:50] – add pitcures kingkevin
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 On the other side: On the other side:
   * a [[#nRF24L01+|nRF24L01+ radio]] to receive the values   * a [[#nRF24L01+|nRF24L01+ radio]] to receive the values
-  * a [[#Raspberry Pi|Raspberry Pi single board computer]] to store the measurements in an [[https://influxdb.com/|influxDB timer series database]]+  * a [[#Raspberry Pi|Raspberry Pi single board computer]] to store the measurements in an [[https://influxdb.com/|influxDB time series database]]
   * a [[http://grafana.org/|grafana graphical monitoring tool]] to display the electricity consumption   * a [[http://grafana.org/|grafana graphical monitoring tool]] to display the electricity consumption
 +
 +{{:spark_counter:dsc02371.jpg?0x300|complete spark counter}}
  
 ====== peacefair PZEM-004 ====== ====== peacefair PZEM-004 ======
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   * is powered using 80-260 V AC   * is powered using 80-260 V AC
   * provides a TTL UART port to query these values (or set an alarm so to beep when a provided power threshold is reached)   * provides a TTL UART port to query these values (or set an alarm so to beep when a provided power threshold is reached)
 +
 +{{:spark_counter:dsc02361.jpg?0x200|PZEM-004 front}}
 +{{:spark_counter:dsc02359.jpg?0x200|PZEM-004 back}}
  
 The voltage measurement is done over the power input port. The voltage measurement is done over the power input port.
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 Pass the wire on which you would like to measure the current through the coil, and connect the coil to the power meter. Pass the wire on which you would like to measure the current through the coil, and connect the coil to the power meter.
 A drawing on the back of the device will describe how to connect the wires. A drawing on the back of the device will describe how to connect the wires.
 +
 +{{:spark_counter:dsc02328.jpg?0x200|PZEM-004 opto-couplers}}
  
 The meter also provides a UART port to query the measured values. The meter also provides a UART port to query the measured values.
 Two opto-couplers isolate the main power meter circuits from the TX and RX UART ports. Two opto-couplers isolate the main power meter circuits from the TX and RX UART ports.
  
-The {{:power_meter:pzem-004.rtf|manual}} provides the corresponding commands, but lacks some information.+The {{:spark_counter:pzem-004.rtf|manual}} provides the corresponding commands, but lacks some information.
 The UART configurations is 9600 bps 8N1. The UART configurations is 9600 bps 8N1.
 Before querying the measurements, you have to set an address to the device. Before querying the measurements, you have to set an address to the device.
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 I removed the pizeo-element to prevent this annoying sound. I removed the pizeo-element to prevent this annoying sound.
  
-The power meter uses a single chip solution, the [[http://www.sdicmicro.com/products.html?ic=SD3004|SDIC microelectronics SD3004]] ({{:power_meter:sd3004_datasheet_v0.2c.pdf|datasheet}}).+{{:spark_counter:dsc02344.jpg?0x200|PZEM-004 board front}} 
 +{{:spark_counter:dsc02325.jpg?0x200|PZEM-004 board back}} 
 +{{:spark_counter:dsc02327.jpg?0x200|PZEM-004 board IC}} 
 + 
 +The power meter uses a single chip solution, the [[http://www.sdicmicro.com/products.html?ic=SD3004|SDIC microelectronics SD3004]] ({{:spark_counter:sd3004_datasheet_v0.2c.pdf|datasheet}}).
 This chip does all the necessary work: measure voltage and current, drive the 7-segments LED displays, communicate over UART. This chip does all the necessary work: measure voltage and current, drive the 7-segments LED displays, communicate over UART.
 There is only an additional external I²C EEPROM to store the global energy consumption. There is only an additional external I²C EEPROM to store the global energy consumption.
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 ====== ATmega328P ====== ====== ATmega328P ======
  
-{{ :power_meter:ic_dev_arduino_nano-30.svg?400|Arduino Nano pinout}}+{{:spark_counter:dsc02354.jpg?0x200|development board}} 
 +{{:spark_counter:dsc02365.jpg?0x200|development setup}} 
 +{{ :spark_counter:ic_dev_arduino_nano-30.svg?400|Arduino Nano pinout}}
  
 To read out the measurements from the [[#peacefair PZEM-004|power meter]] and send them over [[#nRF24L01+|radio]] I used an [[http://www.atmel.com/devices/atmega328p.aspx|Atmel ATmega328P]] micro-controller. To read out the measurements from the [[#peacefair PZEM-004|power meter]] and send them over [[#nRF24L01+|radio]] I used an [[http://www.atmel.com/devices/atmega328p.aspx|Atmel ATmega328P]] micro-controller.
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 ====== nRF24L01+ ====== ====== nRF24L01+ ======
  
-{{ :power_meter:nrf24l01_pinout.jpg?250|nRF24L01+ pinout}}+{{:spark_counter:dsc02353.jpg?0x150|nRF24L01+ module}} 
 +{{ :spark_counter:nrf24l01_pinout.jpg?250|nRF24L01+ pinout}}
  
 To transmit the measurements from the [[#ATmega328P]] to the [[#Raspberry Pi|RPi]] I used [[https://www.nordicsemi.com/eng/Products/2.4GHz-RF/nRF24L01P|nordic nRF24L01+]] RF transceivers. To transmit the measurements from the [[#ATmega328P]] to the [[#Raspberry Pi|RPi]] I used [[https://www.nordicsemi.com/eng/Products/2.4GHz-RF/nRF24L01P|nordic nRF24L01+]] RF transceivers.
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 ====== Raspberry Pi ====== ====== Raspberry Pi ======
  
-{{ :power_meter:pi-gpio-header-26-sm.png?200|RPi P1 header}}+{{:spark_counter:dsc02375.jpg?0x200|RPi setup}} 
 +{{ :spark_counter:pi-gpio-header-26-sm.png?200|RPi P1 header}}
  
 To store the measurements I use a [[https://www.raspberrypi.org/products/model-b/|Raspberry Pi Model B1]] ([[http://elinux.org/RPi_HardwareHistory|rev 0002]]). To store the measurements I use a [[https://www.raspberrypi.org/products/model-b/|Raspberry Pi Model B1]] ([[http://elinux.org/RPi_HardwareHistory|rev 0002]]).
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 | GPIO9/MISO | P1_21 | 7 | MISO | | GPIO9/MISO | P1_21 | 7 | MISO |
 | GPIO24 | P1_18 | 8 | IRQ | | GPIO24 | P1_18 | 8 | IRQ |
 +
 +{{:spark_counter:grafana.png?0x200|grafana visualization}}
spark_counter.txt · Last modified: 2024/01/07 17:49 by 127.0.0.1