Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Microcontroller | ESP32-S3-WROOM-1 (Dual-core Xtensa LX7) |
| Flash Memory | 8 MB SPI Flash |
| PSRAM | 2 MB Octal SPI PSRAM |
| Wireless Connectivity | Wi-Fi 802.11b/g/n (2.4 GHz) and Bluetooth 5 (LE) |
| USB Interface | Native USB OTG support via Type-C connector |
| GPIO Pins | 34 programmable GPIOs with interrupt support |
| Operating Voltage | 3.3V logic level, 5V input via USB or VIN pin |
| Dimensions | 25.4 x 17.8 mm (Compact PICO form factor) |
| Development Support | Arduino IDE, ESP-IDF, MicroPython, CircuitPython |
| On-board Features | RGB LED, Boot/Reset buttons, CP2102N USB-to-UART bridge |
Anonymous
Mar 24, 2026
Rating: 4/5
Compact but runs hot under load
The performance is top-notch for motor control and sensor fusion. However, during intensive Wi-Fi transmission tasks, the chip gets noticeably warm. I added a small heatsink which solved the issue. Otherwise, a fantastic board.
Anonymous
Mar 17, 2026
Rating: 5/5
Perfect for compact IoT projects
This board is incredibly small yet powerful. The native USB support makes flashing code a breeze without needing external programmers. I used it for a smart sensor node and the Wi-Fi range is surprisingly good for such a tiny module.
Anonymous
Mar 16, 2026
Rating: 5/5
Reliable Bluetooth LE performance
I specifically needed strong BLE capabilities for a wearable prototype. This ESP32-S3 variant handles connections stably even in noisy environments. The power consumption is also quite low when in deep sleep mode.
Anonymous
Mar 10, 2026
Rating: 5/5
Ideal for learning embedded systems
As a student, this board offers everything I need at a great price. The compatibility with Arduino IDE meant I could get my first project running in under an hour. The build quality feels solid despite the small size.
Anonymous
Mar 08, 2026
Rating: 5/5
Seamless MicroPython integration
Flashed MicroPython immediately out of the box. The 2MB PSRAM allows for handling larger datasets directly on the device. Highly recommend for anyone looking to prototype quickly without C++ complexity.
Anonymous
Mar 03, 2026
Rating: 4/5
Great value, minor documentation gaps
Hardware quality is excellent and the pinout is well labeled. It runs ESP-IDF smoothly. Only giving 4 stars because the specific pin mapping for the PSRAM took some digging to find in the docs, but once configured, it works flawlessly.
Q: Is the USB-C port data-capable or just for charging?
A: The USB-C port is fully data-capable. It supports both UART programming and Native USB device/host functionality thanks to the ESP32-S3 chip.
Q: Does this board support external antennas for better range?
A: No, this specific WROOM model comes with an onboard PCB antenna only. There is no U.FL connector for an external antenna on this version.
Q: Does this come with headers pre-soldered?
A: No, this board is typically shipped without headers to keep the profile low and allow for custom mounting. You will need to solder your own header pins or use pogo pins.
Q: Can I power this board directly with a 3.7V LiPo battery?
A: Yes, you can connect a LiPo battery to the 5V pin (via a diode for safety) or use the dedicated BAT pin if your specific revision supports it, but using a 5V regulator circuit is recommended for stability.
Q: What is the maximum current draw per GPIO pin?
A: Each GPIO pin can source or sink up to 40mA. However, the total current for all ports combined should not exceed the chip's maximum rating, typically around 200mA-300mA depending on usage.
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