Differences

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--- spark_counter [2015/10/25 18:40] – add pictures kingkevin
+++ spark_counter [2015/12/05 12:54] – add git link kingkevin
@@ Line 1: / Line 1: @@
-The spark counter is a custom electricity meter.
+The spark counter is a custom electricity meter with wireless data logging capability.
 On one side I have:
@@ Line 10: / Line 10: @@
   * 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
+{{:spark_counter:dsc02371.jpg?0x300|complete spark counter}}
 ====== peacefair PZEM-004 ======
-The [[http://www.aliexpress.com/wholesale?catId=0&SearchText=peacefair|peacefair]] [[http://www.aliexpress.com/wholesale?catId=0&SearchText=peacefair+pzem-004|PZEM-004]] is a simple power meter.
+The [[http://www.aliexpress.com/wholesale?catId=0&SearchText=peacefair|peacefair]] [[http://www.aliexpress.com/wholesale?catId=0&SearchText=peacefair+pzem-004|PZEM-004]] is a simple power meter ({{:spark_counter:peacefair_pzem-004_porduct.pdf|datasheet}}).
 It:
   * measures voltages 80-260 V AC
@@ Line 23: / Line 25: @@
   * 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|}}
+{{:spark_counter:dsc02361.jpg?0x200|PZEM-004 front}}
-{{:spark_counter:dsc02359.jpg?0x200|}}
+{{:spark_counter:dsc02359.jpg?0x200|PZEM-004 back}}
 The voltage measurement is done over the power input port.
@@ Line 31: / Line 33: @@
 A drawing on the back of the device will describe how to connect the wires.
-{{:spark_counter:dsc02328.jpg?0x200|}}
+{{:spark_counter:dsc02328.jpg?0x200|PZEM-004 opto-couplers}}
 The meter also provides a UART port to query the measured values.
@@ Line 65: / Line 67: @@
 I removed the pizeo-element to prevent this annoying sound.
-{{:spark_counter:dsc02344.jpg?0x200|}}{{:spark_counter:dsc02325.jpg?0x200|}}{{:spark_counter:dsc02327.jpg?0x200|}}
+{{: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}}).
@@ Line 73: / Line 77: @@
 ====== ATmega328P ======
+{{: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}}
@@ Line 79: / Line 85: @@
 USART to query the power meter, SPI to communicate with the nRF24L01+, and the nRF24L01+ protocol are implemented in C (using a lot of interrupts).
-The source code is available [[https://to.do|in this git]].
+The source code is available [[https://git.cuvoodoo.info/kingkevin/spark_counter/tree/master|in this git]].
 I prefer directly writing in the registers as described in the [[http://www.atmel.com/images/Atmel-8271-8-bit-AVR-Microcontroller-ATmega48A-48PA-88A-88PA-168A-168PA-328-328P_datasheet_Complete.pdf|datasheet]] rather than using an [[https://www.arduino.cc/en/Main/Software|abstract IDE]] and [[https://github.com/TMRh20/RF24|libraries]].
 This way I learn how it works in details.
@@ Line 96: / Line 102: @@
 ====== nRF24L01+ ======
-{{:spark_counter:dsc02353.jpg?0x150|}}
+{{:spark_counter:dsc02353.jpg?0x150|nRF24L01+ module}}
 {{ :spark_counter:nrf24l01_pinout.jpg?250|nRF24L01+ pinout}}
@@ Line 103: / Line 109: @@
 On the [[#ATmega328P|micro-controller]] side I implemented the complete SPI-based protocol using the [[https://www.nordicsemi.com/eng/content/download/2726/34069/file/nRF24L01P_Product_Specification_1_0.pdf|datasheet]].
-The source code is available [[https://to.do|in this git]].
+The source code is available [[https://git.cuvoodoo.info/kingkevin/spark_counter/tree/master|in this git]].
 On the [[#Raspberry Pi|computer]] side I use the [[https://github.com/TMRh20/RF24|RF24 library]].
@@ Line 110: / Line 116: @@
 ====== Raspberry Pi ======
+{{:spark_counter:dsc02375.jpg?0x200|RPi setup}}
 {{ :spark_counter:pi-gpio-header-26-sm.png?200|RPi P1 header}}
@@ Line 116: / Line 123: @@
 To receive the measurements I used a [[#nRF24L01+|nRF24L01+ transceiver]] with the [[https://github.com/TMRh20/RF24|RF24 library]].
-The source code is available [[https://to.do|in this git]].
+The source code is available [[https://git.cuvoodoo.info/kingkevin/spark_counter/tree/master|in this git]].
-The values are then simply stored in an [[https://influxdb.com/|InfluxDB]] time series database for visualisation in [[http://grafana.org/|grafana]].
 [[http://elinux.org/RPi_Low-level_peripherals#P1_Header|RPi]] - nRF24L01+ connection:
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 | GPIO9/MISO | P1_21 | 7 | MISO |
 | GPIO24 | P1_18 | 8 | IRQ |
+The values are then simply stored in an [[https://influxdb.com/|InfluxDB]] time series database for visualisation in [[http://grafana.org/|grafana]].
+{{:spark_counter:grafana.png?0x200|grafana visualization}}