Differences

This shows you the differences between two versions of the page.

--- spark_counter [2015/12/28 10:26] – [peacefair PZEM-004] kingkevin
+++ spark_counter [2016/02/21 10:40] – add warning kingkevin
@@ Line 12: / Line 12: @@
 {{:spark_counter:dsc02371.jpg?0x300|complete spark counter}}
+**warning: the electricity meter I am presenting will only work for 1 phase 2 wires power distribution systems. I have a 3 phases 4 wires system and I am doing it wrong.**
 ====== peacefair PZEM-004 ======
@@ Line 167: / Line 169: @@
 The pin header is the same as the [[http://www.raspberry-projects.com/pi/pi-hardware/raspberry-pi-2-model-b/rpi2-model-b-io-pins|40-pin Raspberry Pi]].
+The SPI port to connect the nRF24L01 is also available over ''/dev/spi''.
+But else this board is not really worth spending time on.
+Also don't forget to put a heat sink on the CPU, else they will be slowed down quite often because of the high temperatures.