DC Microgrid/consume01: Difference between revisions

Latest revision as of 21:49, 3 May 2021

DC consume01 Release status: beta [box doku]

Description	12V power meter and distribution box
Author(s)	Severin
Last Version	0.1

A 12V power meter and distribution unit.

The GC90 power meter can deal with up to 100V DC at 20A. It also has a TTL port via USB connector.

Connecting to the GC90 via an FTDI adapter

Reading the GC90 status with python

We want to transmit voltage/current/power usage via LoRaWAN. The power meter can output that data via its TTL USB port.

First test with a ProMini LoRaWAN node and a level shifter

Custom PCB

I've build a custom board to connect an Arduino to the GC90 and transmit the output via LoRaWAN.

Add fuses
- These resettable fuses can deal with up to 48V (depending on the rating, some only with lower voltages): Reichelt
- Bigger DC fuses are available here at solarbag (probably not for this part of the setup though)
Option for 48V -> 12V converter
additional connectors, like USB, USB-C, passive PoE...

@@ Line 19: / Line 19: @@
 The GC90 power meter can deal with up to 100V DC at 20A. It also has a TTL port via USB connector.
+{|
+| [[File:Microgrid-consume01-ttl01.jpg|thumb|300px|Connecting to the GC90 via an FTDI adapter]]
+| [[File:Microgrid-consume01-ttl02.jpg|thumb|300px|Reading the GC90 status with python]]
+|}
+* [https://github.com/tiefpunkt/gc9x-reader/ Python script to read the GC90 via serial port]
+=== LoRaWAN ===
+We want to transmit voltage/current/power usage via LoRaWAN. The power meter can output that data via its TTL USB port.
+{|
+| [[File:Microgrid-consume01-lorawan01.jpg|thumb|300px|First test with a ProMini LoRaWAN node and a level shifter]]
+| [[File:Microgrid-consume01-lorawan02.jpg|thumb|320px|Custom PCB]]
+| [[File:Microgrid-consume01-lorawan03.jpg|thumb|180px|Custom PCB]]
+|}
+I've build a custom board to connect an Arduino to the GC90 and transmit the output via LoRaWAN.
+* [https://github.com/tiefpunkt/powermeter-lorawan-connector GitHub Repository]
 == Improvements ==
-* Connect LoRaWAN Arduino to power meter and transmit voltage/current/power usage
 * Add fuses
 ** These resettable fuses can deal with up to 48V (depending on the rating, some only with lower voltages): [https://www.reichelt.de/rueckstellbarer-geraeteschutzschalter-5-0a-t9-611p-5a-p69579.html?&trstct=pol_0 Reichelt]