Products > Test Equipment
New EEVblog BM786 Multimeter
EEVblog:
--- Quote from: ian.ameline on January 21, 2021, 08:42:08 pm ---The batteries were in the package (3 energizer aaa in a small ziplock bag) but not installed in the meter -- so I guess DHL didn't remove all of them...
--- End quote ---
No, I shipped a lot more than they sent batteries back for. Maybe it was a sorted batch for one country and some dilligent handler opened one.
EEVblog:
I just checked the signals on the internal header (not the one in the battery compartment) on the latest firmware model and still don't get any signals :(
Was hoping they would have enabled support for the internal bluetooth module.
There is a chance it requires a pull up or something to activate it on bootup, but not likely.
dougg:
After having a 4 week, 10 phone call experience with DHL Express *** I was worried when the EEVBlog shop told me on Monday that the same courier company had my 768. It arrived today in Toronto, Canada so that I now have 4.5 multimeters. The 0.5 is a Metex M-3650 (from Dick Smiths ?) whose AC ranges are shot; it sits behind the TV and is used to determine the health of AA and AAA batteries. Went looking for that elusive 768 user manual and came up with this url: http://www.brymen.com/images/ProductsList/BM780_List/BM789-5-manual-print1-r7.pdf . It has the same snafu describing a north American outlet on page 18. Dave should fix the dead url at the start of this thread.
The 768 probes feel really good and the screw-on banana plug fittings are really useful. Did some measurements with a REF-101 from www.syscompdesign.com at 250 mV on 3 meters: Fluke 233, 121GW and the BM768: 249.7, 249.79 and 249.82 . Then set a SDG 2042X to the same voltage and got 251.3, 251.45 and 251.43 . A pretty good result IMO. The BM768 looks larger than the 121GW but the latter is higher and weighs about 80 grams more.
*** Jakarta -> Toronto, original package "EMS International". POS Indonesia handed it off to DHL who put it inside their packet and dropped a digit off my street number. DHL say they are innocent, IMO they are culpable, they should have put their label on the other side of the _original_ package.
joeqsmith:
--- Quote from: EEVblog on January 22, 2021, 02:09:59 am ---I just checked the signals on the internal header (not the one in the battery compartment) on the latest firmware model and still don't get any signals :(
Was hoping they would have enabled support for the internal bluetooth module.
There is a chance it requires a pull up or something to activate it on bootup, but not likely.
--- End quote ---
Yeah, I had tried that as well with the same results.
https://www.eevblog.com/forum/testgear/new-eevblog-bm786-multimeter/msg3417392/#msg3417392
EEVblog:
--- Quote from: joeqsmith on January 16, 2021, 04:52:40 pm ---Just a quick check, the unpopulated 4-pin connector with the two pairs of common pins is on the back side of U20 and ground, used to power the meter during development or provide power to some peripheral.
The other unpopulated connector is not in parallel with the one you asked about. It's possible that these two unpopulated connectors were both intended to control an add-on peripheral rather than development. The LCD is far enough away that there is certainly room to add something but with the lack of mounting holes in this area, my guess is they are both for development. Probing the two connectors, I didn't see anything while trying different modes.
--- End quote ---
Missed this post.
I do believe this is for the optional bluetooth module.
Brymen said way back
--- Quote ---We plan to just put Bluetooth capability on the PCB but leave it off for BM78x first generation models. Once we complete the software development, we will launch out BM78x with Bluetooth version models.
--- End quote ---
I asked then if it was possibble to at least make the processor output serial data or whatever so that users could retrofit their own module if needed. That would make it cool feature "hack". But it seems they didn't do it.
They memtioned a CYPRESS CYBLE-212006-01 module, but that pinout doesn't match, maybe a daughterboard?
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