In this tutorial, I'm going to show you how to transfer the sensor readings between two ESP32 Boards via Bluetooth protocol.
Things that you need:
LM35 Temperature Sensor
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M5Stick C (Source from M5Stack)
M5StickC is a mini M5Stack, powered by ESP32. It is a portable, easy-to-use, open source, IoT development board. What it can do? This tiny block is able to realize your idea, enlighten your creativity, and help with your IoT prototyping in a very short time. It will take away a lot of pains from the development process.M5stickC is one of the core devices in M5Stack product series.
It is built in a continually growing hardware and software ecosystem. It has a lot of compatible modules and units, as well as the open source code & engineering communities that will help you maximize your benefits in every step of the developing process.