The new Shimano SM EWW01 Di2 unit

bernithebiker

Just bought this new unit, as like the idea of seeing the gears and battery level on my Garmin 510 (up to date with 3.4)

However, even though the install should be super simple, the Garmin cannot see the unit.

The instructions say to install the unit, then unplug the 2 wires and plug them back in again (despite them saying not to repeatedly unplug the wires!) to facilitate pairing.

But no joy, even with the Garmin held right next to the unit. On Youtube it all looks so simple, you don't have to do anything, the Garmin just sees it automatically!

As a side note, I want to try and put the sender in the BB. Seems it does still work from there. But on an S works Tarmac, I would have to remove a smidgen of carbon from inside in order to fit the unit in.......

Anyway, anyone have any experience of these?

izza

I connected mine up and had no pairing issues at all.

Didn't go through any plug and unplug routines. But did disconnect/forget all other sensors first and pair Di2 first.

Have you checked all connections and updated all component firmwares using an e-tube diagnostic unit ?

As for where it goes, I have mine suspended off the internal battery without issue. From other forums it seems to be no issue whatsoever with carbon frames. It can be an issue if you have a metallic frame.

bernithebiker

izza wrote:

I connected mine up and had no pairing issues at all.

Didn't go through any plug and unplug routines. But did disconnect/forget all other sensors first and pair Di2 first.

Have you checked all connections and updated all component firmwares using an e-tube diagnostic unit ?

As for where it goes, I have mine suspended off the internal battery without issue. From other forums it seems to be no issue whatsoever with carbon frames. It can be an issue if you have a metallic frame.

See the Di2 thread in Road Buying Advice for what happened and how I resolved it.

I was told that to get the system to recognise the sender I would need to update all my Di2 component firmware using E-Tube.

So having borrowed a PC (we have Macs) I performed all the updates (took ages) which then froze my entire system; dead, no shifting, nothing.

Then had to borrow a PCE1 (old style charger) which you don't get with an internal battery setup.

After 3 calls and 1 hour with Madison managed to interrogate each component and finally brought it back to life.

Moral of the story; be very careful when updating your components, or adding a new / replacement component. Do NOT do it on the eve of a race day!!

I put my sender in the bottom, behind the BB trapdoor. I had to Dremel a tiny amount of carbon to enlarge the hole to be able to put the sender in.

I'm curious when you say yours is hung off the internal battery; does that mean it's not in between the rear mech and the 4 way junction, but rather in between the battery and the 4 way junction?

izza

Yes - via advice and threads on roadbikereview I discovered that you can have it anywhere in the chain. Madison advised to keep it between rear derailleur junction box. However, I am presuming, that this advice is based upon metallic frames and seatposts creating a bit of the Faraday effect (I think based on my A level physics) and preventing the signals getting cleanly to the Garmin head unit.

I had an issue whereby the gear set up randomly kept going back to gear adjustment mode which massively affects battery life, keeps the screen on a gear adjustment page and ruins quality of changes. In trying to isolate the issue, I made the mistake of introducing the D Fly unit at the same time I switched to internal battery and had inserted sprinter switches. Had to keep going back, repeatedly though the whole system and with internet advice, successfully moved the D-fly to underneath the 5 port junction under the handlebar. Really easy for working diagnostic isssues!!

Ultimately I found my issue was a loose connection to the internal battery - even though connection check on the E-tube software didn't find it - and thus on putting the bits back together, I moved the D-fly from handlebar to seat post. Very easy and neat.

Morals of my story and the ensuing discussions:
- if there is any issue, check the firmware of each part individually
- if the fault is non-logical/intermittent/"weird" then physically check every connection. The E-tube 'connection check' is not foolproof
- Don't think of the battery unit as a battery unit. It is a battery unit plus motherboard. There are an awful amount of Di2 brains stored in that unit and its firmware is critical to both usage and testing.
- Keep all family out of the kitchen when diagnosing issues. I ended up lieing on the floor, with a torch facing up an upside down bike's seatpost, hand pedalling with multiple wires poking out of the frame when a four year old tripped up in the kitchen whilst dancing to 'Let It Go''. Unsure if Disney and Shimano knew they were close to being the main defence in a family homicide case.

Bar Shaker

We have ours on the seat stay, just up from the RD.

Neither needed any pairing and worked straight out of the box. Both bikes run v2.5.2

larmurf

Bar Shaker wrote:

We have ours on the seat stay, just up from the RD.

Neither needed any pairing and worked straight out of the box. Both bikes run v2.5.2

Has anyone fitted one of these recently ..?? Have all the problems been sorted out ??
Has the above position been accepted as a sort of standard ..??

964cup

You can put it wherever you like, provided the radio signals can escape. A number of people I know have them in the seat-tube, in line between the battery and junction B. The issue remains that they are only supported on some of the later Garmins, so be careful you don't end up needing a new head unit just to be able to see gear position and battery life (oh, and switch Garmin screens using the hidden shifter buttons if you're using DA9070).

bernithebiker

larmurf wrote:

Bar Shaker wrote:

We have ours on the seat stay, just up from the RD.

Neither needed any pairing and worked straight out of the box. Both bikes run v2.5.2

Has anyone fitted one of these recently ..?? Have all the problems been sorted out ??
Has the above position been accepted as a sort of standard ..??

Mine is tucked up inside the BB, and it's been working absolutely fine for the last year or so.

Very useful to see gear position, and it shows battery level too. And has an indexing screen.

larmurf

Thanks for the replies. I just want to know whether it is now more or less 'plug and play. Attach with supplied rubber band, plug in the relevant leads, ask the Garmin Edge 1000 to pair and off you go ..??

larmurf

Well I got the unit and the extra lead.
Getting it to work was far from plug and play.
After a few hours reading and trying this and That
I downloaded unzipped and installed http://api.shimano.com/etube/public/dat ... 2_11_1.zip on my computer.
I connected the USB Of the charger to the computer and the other end plugs into the unit under the stem.
I then ran the program choosing road bike when prompted.
The program installed itself. And finally my Garmin 1000 recognised the EWW01 unit ...!!

dag_on_a_bike

No problem with installing mine, in the seat tube. Unplugged one of the wires to the battery and then plugged new wire to the battery and the other end to the EWW01, with the old battery wire to the other connection on the EWW01

The Edge 1000 and the EWW01 paired straight away - when using one of the shifter buttons to create a signal.

Now what would be really neat would be a firmware update to the Di2 to get more communication following the V8 firmware update for the Edge 1000 to allow support for ANT+ shifting, enabling the SRAM RED eTAP and Campagnolo EPS systems.

bernithebiker

After an update to my Garmin 520, the battery indicator no longer works, it just shows an empty battery symbol with a question mark inside. Gear indicator still works fine though, odd....

Ernesider

bernithebiker wrote:

After an update to my Garmin 520, the battery indicator no longer works, it just shows an empty battery symbol with a question mark inside. Gear indicator still works fine though, odd....

Well in my case the graphics showing what gear (front & rear) I am in are working ok. And a Di2 battery percentage seems to be also ok. Then there Is like you a heading Gear Battery and under it an outline of a battery with a ? Inside it. I have no idea what the Gear Battery is as distinct from the Di2 Battery. And then there are Gear Ratio & Gear Combo which read 1.0 and 255-255 respectively and permanently. I can't find any info on what I going on and who would one contact Garmin or Shimano ..?? They would probably blame each other. Anyway the gear graphic was what I wanted so I don't mind very much ..!!

bernithebiker

Ernesider wrote:

bernithebiker wrote:

After an update to my Garmin 520, the battery indicator no longer works, it just shows an empty battery symbol with a question mark inside. Gear indicator still works fine though, odd....

Well in my case the graphics showing what gear (front & rear) I am in are working ok. And a Di2 battery percentage seems to be also ok. Then there Is like you a heading Gear Battery and under it an outline of a battery with a ? Inside it. I have no idea what the Gear Battery is as distinct from the Di2 Battery. And then there are Gear Ratio & Gear Combo which read 1.0 and 255-255 respectively and permanently. I can't find any info on what I going on and who would one contact Garmin or Shimano ..?? They would probably blame each other. Anyway the gear graphic was what I wanted so I don't mind very much ..!!

Maybe they've just relabelled it Di2 Battery, and 'Gear Battery' no longer works.

French garmin support is absolutely useless, they seem clueless as to what is going on. I'll try and find 'Di2 battery' in the menus.

Gaz777

Yes that's it. It does still work, but gear battery now refers to etap or eps. You just need to select di2 battery in the profile set up and it'll work again. Gear ratio has changed to gear combo as well.

Gaz777

Just to add, there was a firmware update on the 22nd for the eww01 which has significantly reduced power consumption, so that's well worth installing! I've noticed a difference already.

bernithebiker

Gaz777 wrote:

Just to add, there was a firmware update on the 22nd for the eww01 which has significantly reduced power consumption, so that's well worth installing! I've noticed a difference already.

Thanks! How do you install that? With the old style charger?

Gaz777

I've got a PCE-1 so I used that, but you can install it with the charger for the internal battery, BCR-2.

My battery used to drop far more quickly with the EWW01 connected than without it, but since this firmware update, the battery percentage hasn't moved at all. Well pleased with that!

Neilscc

I had to update the software before I could install the sender unit but once done it was all good. The battery does run down marginally quicker but to be expected as its now doing another job. I have slung mine under the "out front" mount with some rubber bands so it's within a few mm of the Garmin

ryan_w-2

Just purchased one of these with a 150mm wire.

Hoping it'll work fine hidden in my seat tube.....

Gaz777

Mine's in my seat tube; it's always worked perfectly so I can't see you having an issue.

bernithebiker

Gaz777 wrote:

Mine's in my seat tube; it's always worked perfectly so I can't see you having an issue.

Mine too, and it's a carbon frame, so no problems, but I wonder if it would be OK with alu, steel or ti frame..?

teebs_123

Does anyone understand what the new unit is supposed to offer?

ryan_w-2

Teebs_123 wrote:

Does anyone understand what the new unit is supposed to offer?

Hood control compatibility to scan through Garmin screens.

Gaz777

bernithebiker wrote:

Mine too, and it's a carbon frame, so no problems, but I wonder if it would be OK with alu, steel or ti frame..?

I've wondered that too, but everyone I know with Di2 uses it on a carbon frame. It's a slightly different scenario but I always have my garmin GSC-10 sensor on the rear wheel. I had to move it on my winter bike when I fitted metal mudguards as the signal no longer registered with the garmin!

MRCMMC

Just in the process of building my renovated 1991 race bike, not of a vanity project.
Everything works fine.
All paired up etc

ryan_w-2

All installed and fully working from within the seat tube.

bartersb

Old thread but does anyone know about the duration of pairing mode on the Di fly? Is there only a relatively short window once the battery has been reconnected?
I’ve been trying to connect a Shimano cm-2000 camera but it isn’t picking it up.