In a shopping frenzy, I couldn't resist and ordered the new power pack from Arduino. The 33 IoT is in the form factor of the Nano but has Wi-Fi. It also has an integrated IMU with which acceleration and spatial orientation can be determined. More about this amazing board in the following sections. …
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I came across the term MQTT online and really liked the approach behind it. So, I treated myself to a small experimental setup, which I've described below. First, a few details about MQTT. About MQTT General Information MQTT governs communication between data sources and data sinks using a broker. Data Source Sources for…
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The ESP01 module, costing under €2, is one of the cheapest and smallest modules with an ESP8266 chipset. ADDENDUM: Since 2023, there's a new version, the ESP01s. Apart from a few minor changes, the two are similar. The new version has 4MB of memory and pull-ups on the IOs. They are compatible in programming with…
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