E-Caliper with USB, LCD and Bluetooth Interfaces

RE: E-Caliper with USB, LCD and Bluetooth Interfaces

dougw — Mon, 30 Mar 2026 05:26:16 GMT

There is a separate post on the Bluetooth app - because this page has no edit capability....

[mention:3d8654d095b042f9aabde683a1d73712:f7d226abd59f475c9d224a79e3f0ec07]

I do wonder why that blog can be edited, but this one can't.

RE: E-Caliper with USB, LCD and Bluetooth Interfaces

Andrew J — Wed, 02 Jul 2025 07:16:42 GMT

Great project Doug. Remote reading is really useful and once you can get readings out further use cases will pop out the woodwork as you go along.

RE: E-Caliper with USB, LCD and Bluetooth Interfaces

shabaz — Wed, 02 Jul 2025 00:59:52 GMT

Hi Doug,

Nice work. I'd been on the lookout for a pair of BLE calipers for ages, and I narrowed it down to two candidates.One was called S_Cal EVO, but I was quoted something ridiculous (approx. 325 USD) or Shahe 5101L (approx 60 USD).

The S_Cal EVO has spectacular BLE capability (it can operate in several modes for future-proofness) whereas the Shahe model only works one way and limited configurability which needs to be done on the instrument, not remotely.

However, despite the simpler capability, I've been really happy with the Shahe model. I was meaning to write a review but I never got around to it.

Anyway, my point was going to be, if you're looking for ideas for your app, it could be worth checking out some of the current apps documentation, in case you see anything of interest to you. For instance, one thing I'm missing (I've been meaning to implement it) is speech output of the measurements, since I'm not always able to look at the display.

RE: E-Caliper with USB, LCD and Bluetooth Interfaces

DAB — Tue, 01 Jul 2025 19:48:57 GMT

Great post Douglas.