2021-05-11 06:09:08    23    0    0

At work we needed to certify a BLE device recently. We had the legacy PTS dongle provided by Bluetooth SIG, however I found it only supports testing devices up the BLE 4.2


So we need a new BLE Dongle - they now only support the Laird Connectivity | 451-00004

BL654-SERIES-LRD-FNT

https://store.bluetooth.com/


This is normally stocked by all the online electronics distributers; element14, digikey, mouser, arrow etc. Unfortunately it was out of stock on all of them, for about 4 months.


Normally you need to buy this dongle then flash the PTS firmware onto it: https://support.bluetooth.com/hc/en-us/articles/360049019732-How-to-upgrade-the-firmware-of-your-PTS-Dongle-


It turns out this is basically just a normal nrf52840 dongle in a plastic case with a copy of the nordic bootloader with their own private key in it.

This private key change blocks the DFU from allowing the standard PTS firmware upgrade tool from just being able to flash straight onto it.


The firmware update tool has a folder in it with a DFU file in it,

2020-01-25 11:28:42    209    0    0

I'm a big fan of my Sunbeam Torino

I've had my Torino for about a year now.
I read the reviews talking it down before I bought it but didn't have the bench space for a BDB. I also got it for about AUD 1K, much less than the original RRP.
For the price I think it's the best looking machine that has all the conveniences like dosed shot buttons, pour timer, quick startup etc.

Right from the start I've been very happy with it in every way bar one: the pressure is way too high.

I don't know if the pressure gauge on the front is accurate (I don't have a separate grouphead gauge yet) but it says my pour pressure is usually 12 - 14 bar if I want a brew time in the 20-30 second range.
Grinding/packing the grounds lighter to reduce the pressure results in a pour time in the 10 - 20 second range with flavourless coffee.

A while back I got the bottom of my old EM6910 portafilter machined out to make myself a naked portafilter.
Usi

2019-02-11 20:40:51    2004    0    0

Windows CI Build Node

Install Windows Server Core 2019 or Windows 10 (eval licence or full).

https://uupdump.ml/ Can be used to download latest versions.

 

Hyper V Server 2019 not working as of Feb 2019: https://github.com/MicrosoftDocs/Virtualization-Documentation/issues/945

https://www.microsoft.com/en-us/evalcenter/evaluate-hyper-v-server-2019

https://medium.com/@RealNetwork/direct-download-links-windows-server-2019-datacenter-standard-essentials-hyper-v-server-2019-5f53357eeeac

https://software-download.microsoft.com/download/pr/17763.1.180914-1434.rs5_release_SERVERHYPERCORE_OEM_x64FRE_en-us.iso

 

 Install on your hardware/vm of choice.

 

System Setup

Once it's installed you'll see a console on the vm screen. Firstly you'll be asked to set a password, do so with something memorable.

There should be a blue menu visible on the console.

Remote Desktop can be enabled with menu '7'

Press '8' to show Network Settings to see the current IP address. We'll need that and the "Computer Name" displayed on t

2018-07-30 03:09:46    2275    0    0

Windows CI Build Node

Install Hyper V Server 2016 (free perpetual eval licence)

https://www.microsoft.com/en-us/evalcenter/evaluate-hyper-v-server-2016

https://technet.microsoft.com/hyper-v-server-docs/Hyper-V-Server-2016

https://blog.docker.com/2016/09/build-your-first-docker-windows-server-container/


Install on your hardware/vm of choice.

oVirt / KVM

If you're using oVirt or other KVM based hypervisor for you host, you'll likely want the console viewer application installed on your local machine: https://virt-manager.org/download/sources/virt-viewer/virt-viewer-x64-6.0.msi

Set up the vm with the disk connected to IDE initially, we can switch it over to faster VirtIO once drivers are installed.

The network adapter will need to be set to "Dual mode rtl8139, VirtIO"

Once installed and initial setup completed, ensure the guest tools are installed:

wget -UseBasicParsing https://www.spice-space.org/download/windows/spice-guest-tools/spice-guest-tools-latest.exe -Outfile spice-guest-tools-latest.exe
.