As of Sep 22 2023, a new version of BlueEDM is available on the AppStore. It contains two enhancements aka bugfixes:
- EDM devices with older firmware versions are now supported. Data from firmware versions lower than 300 use a different algorithm for calculating checksums. this lead to a „received invalid data“ error when trying to import such files. The new version now supports devices with the old firmware. BTW, this issue was reported via github. Thanks to https://github.com/frankulbricht for reporting.
- BlueEDM didn’t allow any non-alphanumeric characters in the registration field of the data stream. The software simply cut off any such characters and all of the characters following. This lead to the effect that a registration like „D_EEEE“ would simply be shown as „D“. The new version now supports the hyphen and the underscore as additional characters unless these characters are at the end of the registration. Any trailing non-alphanumeric characters are still stripped.
For the first topic please also note that in the settings tab of the app you can always enable „raw mode“. This will download and save the file without parsing its content. This mode was introduced in order mitigate exactly such situations, so you are still able to download the data files from the device for further sharing with other services.
As a second topic I just want to share some small (and probably final) progress on my DIY project, building an EDM-Bluetooth-adapter on my own. The last version contained a minimal set of components and was ok from a functional perspective. It was, however, mechanically not very robust (ok, it was not robust at all). I used it in real life and the soldering connections were unstable under mechanical stress, so in the end it was not working reliably.
In the final stage, I added a very simple housing from the hardware store and I used some hot glue to fix certain parts to the housing and also fix the outlet cables to resist mechanical stress. Of course you still have to be careful when plugging and unplugging the device, but under realistic usage patterns this is completely sufficient. It is not really a beauty but it fulfills its duty. And the construction is really rather simplistic, consisting only of the box with two outlets, one for plugging into the EDM device and the second for power supply. I didn’t include a fixed power cable so to have the freedom of choosing either a fixed USB port for charging or a battery.