Posts

• Using the Seeed Studio XIAO RS485 breakout for a Modbus prototype

  Notes from prototyping Modbus RTU with a Seeed XIAO RS485 breakout and an Eastron SDM120, including a working Arduino sketch.

• Web-based Microcontroller Setup - Part 3

  My first attempt at Web Blueooth communicating with an Arduino sketch running on an ESP32 microcontroller from a web page to configure WiFi and then call an API on the uC.

• Web-based Microcontroller Setup - Part 2

  Part 2 of explorations into using Web Blueooth to communicate with a microcontroller from a web page. This experiment builds a Shelly client using just JavaScript and the Web Bluetooth API to make RPC calls to a Shelly relay.

• Web-based Microcontroller Setup - Part 1

  An initial exploration into using Web Blueooth to communicate with a microcontroller from a web page with a view to using this as a simple way of setting up a new device without using the Wireless Access Point and captive portal.

• InkyCal

  Building an e-ink desk calendar on the InkyFrame 7.3 (Pico 2 W), pulling events over CalDAV and rendering them with MicroPython.

• A Simple Power Monitoring Idea

  A sketch of a two-part power monitor: a CT-powered remote current sensor plus a mains-powered voltage reference, with questions to answer via experiments.

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