Difference between revisions of "EmonTx"

From OpenEnergyMonitor Wiki
Jump to: navigation, search
(Temperature Monitoring)
Line 17: Line 17:
  
 
==Temperature Monitoring==
 
==Temperature Monitoring==
 +
 +
The emonTx has inputs to connect multiple DS18B20 one-wire digital temperature sensors.
 +
By default these sensor are powered from the 5V line (supplied from the USB) if powering the board from the 3xAAA battery holder the 3V and 5V power rails should be connected together to enable the sensors to be powered from 3.3V. This can easily by done by jumpering the 5V and 3.3V on the JeePort.
 +
 +
'''Caution: This jumper should be removed before a usb connection is plugged into the board. No voltage greater than 5.5V should be connected to the Aux input when DS18B20 temperature sensors are connected.'''
  
 
==Connectivity==
 
==Connectivity==

Revision as of 17:21, 1 August 2012

emonTx SMT

Tech Spec

Powering the emonTx

CT Energy Monitoring

Current Only (Apparent Power)

Voltage and Current (Real Power)

Reading Directly from Utility Meters

Pluse Counting

Optical

Wired

IR Interface

Elster a100c

Temperature Monitoring

The emonTx has inputs to connect multiple DS18B20 one-wire digital temperature sensors. By default these sensor are powered from the 5V line (supplied from the USB) if powering the board from the 3xAAA battery holder the 3V and 5V power rails should be connected together to enable the sensors to be powered from 3.3V. This can easily by done by jumpering the 5V and 3.3V on the JeePort.

Caution: This jumper should be removed before a usb connection is plugged into the board. No voltage greater than 5.5V should be connected to the Aux input when DS18B20 temperature sensors are connected.

Connectivity

Wireless

RFM12B (Default)

XBEE

XRF

Simple ASK RF

Wifi - RN XV

Ethernet

Wired Serial Network

Open-Source Design

Expansion