Monthly Archives

May 2010

Dreambox Sky Bouquets on Astra 28.2

I see a fair number of requests for people looking for the bouquets for their dreambox.  The one I published is well out of date, because I use some excellent ones provided by user B16MCC over at the satellites.co.uk forum.  Have a look at THIS thread, sign-up and say that I sent you πŸ™‚

e.On Smart Meter development.

I have an eOn AMPY (Now Landis Gyr+) Smart Meter to monitor my electricity usage as well as a similarly enabled Gas Meter.   It also comes supplied with an eOn branded β€˜ecometer’ which shows you energy usage on a current, daily, weekly, monthly and quarterly basis.  Because the smart meter is attached to the grid via a GPRS/GSM modem link, it is also β€˜tariff’ aware, such that it gives an indicative figure on your bill.

However, the bit between the ecometer and the supplier’s website is where it all goes wrong – if you want a detailed understand of your power usage, you’re a bit stuck.  Because you can only see β€˜current’ usage as a number, if you want to know how much you were using 15 mins ago, you’re stuffed, because the display isn’t detailed enough, and the website only updates on a monthly basis,

So, my plan is to try and understand the technology to see if there is a way of extracting the β€˜live’ data as its transmitted from from the meter to the ecoMeter display, and I intend to track my progress here.

So, to start:-

Meter is an AMPY 5236E-Y which apparently has an mbus low power radio in it.
The ecoMeter display is an AMPY Model 5262

Inside the 5262 is a PCB with the LCD soldered to the front of it. However, there is a daughterboard tucked behind the LCD with a TI CC110, what looks like a Crystal Oscillator (ACT K7 26.00SCA) and a chip I can find no data on, but has the serial number 90-13026 037 something 7373vg.
Unfortunately I can’t currently see the controllers on the main board because of the LCD, but there is one β€˜major’ microprocessor, and one small one. I suspect this is really just a logic chip and LCD driver.  The motherboard has the following stickers on it:
46228938A1-AG
AML2008/01/28-38A1/AG
There is also a 9 point (3×3) contact patch on the back of motherboard which may be either a programmer or output. This is accessible from outside the case, if that makes a difference.

What I need to find out:-

More about the MBus Protocol
If there is any encryption between the meter and the display panel.
Any control panel options for the ecoMeter – e.g. is there a PIN to set or the like, and how this relates to the meter itself. Additionally, are there any hidden menu’s e.t.c.