Pinecil V2 Bluetooth LE soldering iron gets a web interface

It’s now possible to make use of the Pinecil V2 soldering iron‘s Bluetooth LE connectivity through a web-based interface used to monitor and/or set the temperature and power of the RISC-V soldering iron.

When the Pinecil V2 soldering iron was launched with a Bouffalo Lab BL706 RISC-V Bluetooth microcontroller last summer, we were told there were main potential cases to make use of the Bluetooth LE features: OTA firmware upgrade and remote telemetry and control. The latter is now being taken care of by Joric who has written a  web application to visualize telemetry data and even control the temperature of the soldering iron.

Web interface Pinecil V2 soldering iron

To be able to use the Bluetooth features, you’ll first need to install the latest Pinecil V2 firmware with blisp flashing utility before going to to pair your soldering iron as explained in the wiki. Note the implementation relies on the Web Bluetooth API which does not work on all browsers at this time. Case in point, I got the following message when trying to access the web page in Firefox on Ubuntu:

Bluetooth API is not supported in this browser. What you can do:

  • Windows: try latest Chome (does not work on Firefox)
  • Linux: try Enabling “web-bluetooth*” flags in chrome://flags
  • MacOS: try Bluefy browser (not guaranteed to work).

The user interface did show up in Chrome on Linux after enabling the feature. You can check out the interface in action in the video below showing how to pair the soldering iron, real-time charting of the temperature and power (with a small lag), as well as the ability to control the temperature from the web interface. It will also show the input voltage value.

The web interface can be quite nice, especially for people who may have trouble reading the values on the small display of the Pinecil V2, and this paves the way for other features such as the implementation of automatic ventilation control during soldering. If you want to get involved, you can check out IronOS repo on Github.

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