BTW, I find it pretty amazing that you can buy complete ESP32-S3-Zero boards on AliExpress for $5.33. That's for a little board with the chip, a ceramic antenna, a USB connector and an LED.

ESP32-C3-Zero are $2.80 each.

These prices are absolutely ridiculous for what you get. Also, the ease of use of these boards is incredible. Just connect them via USB to your computer and off you go.

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javawizard 7 minutes ago | parent | next [-]

Wait until you get into developing your own PCBs and discover the BK7238 for $0.81 :)

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htrp an hour ago | parent | prev [-]

what do you do with them?

	▲	jwr 14 minutes ago \| parent [-]
		I am currently working on a Bluetooth Mesh home network allowing me to control lights, gather sensor data from various places, etc (think interfacing with a home alarm system for presence detection). Also, a home air quality monitor, both with a display and reporting to my mesh network. Or you could build a "plane radar" like this one :-) https://github.com/ironicbadger/ESP32-Plane-Radar