Adafruit QT Py ESP32-S2 Dev Board
Best compact microcontroller for space-constrained, wireless IoT projects.
This tiny powerhouse packs serious wireless connectivity and native USB capabilities into a footprint small enough for almost any project. While its compact size limits the number of available pins, the addition of a uFL antenna port and plug-and-play connectors makes it the ultimate choice for space-constrained IoT builds.
$19.95
Who it's for
- Developers needing robust networking and native USB connectivity
- Makers building compact projects with solderless sensor integration
- Engineers requiring long-range wireless performance in difficult environments
Who should skip it
- Users wanting an out-of-the-box wireless solution without extra parts
- Hobbyists planning complex projects with many peripheral connections
- Developers relying on Bluetooth for wireless device communication
Performance breakdown
Connectivity Versatility
Native USB and STEMMA QT make peripheral integration incredibly fast and simple.
Form Factor Efficiency
Tiny footprint packs immense power without sacrificing essential pin accessibility.
Wireless Range
External uFL antenna port provides superior signal reliability for remote projects.
Software Compatibility
Seamless support for CircuitPython and Arduino IDE lowers the barrier to entry.
Memory Capacity
Generous flash and PSRAM allocation handles complex IoT tasks with ease.
Prototyping Speed
Plug-and-play connectors eliminate tedious soldering for most common sensor setups.
Key Specs
Dimensions
21.8mm x 17.9mm x 5.7mm
Weight
2.1g
Processor
ESP32-S2 240MHz Tensilica
Memory
4 MB Flash & 2 MB PSRAM
GPIO Pins
13 (11 on breakout pads, 2 on QT connector)
Analog Inputs
10 x 12-bit
DAC Channels
1 x 8-bit
Connectivity
WiFi, Native USB, 2x I2C, 1x SPI, 1x UART
Power Input
Battery input pads up to 6V
Dimensions
Same size, form-factor, and pin-out as Seeed Xiao
Know before you buy
Still have a question?
Ask Metto anything about the Adafruit QT Py ESP32-S2 Dev Board before you decide.
