Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Microcontroller | ESP32-S3-WROOM-1 |
| CPU Frequency | Up to 240 MHz |
| Flash Memory | 8 MB PSRAM |
| Connectivity | Wi-Fi 4 (802.11 b/g/n) & Bluetooth 5 (LE) |
| USB Interface | USB Type-C with Native USB Support |
| GPIO Pins | 21 Programmable GPIOs |
| Operating Voltage | 3.3V Logic Level |
| Input Voltage | 5V via USB or VIN Pin |
| Dimensions | 20mm x 17.5mm |
| Programming Support | Arduino IDE, ESP-IDF, MicroPython, CircuitPython |
Anonymous
Mar 23, 2026
Rating: 5/5
Reliable for embedded vision
The extra PSRAM on this model is a game changer for camera projects. I connected an OV2640 module and ran face detection smoothly. Highly recommended for anyone doing edge AI.
Anonymous
Mar 21, 2026
Rating: 5/5
Best board for learning MicroPython
As a beginner, I found this board easy to set up with Thonny IDE. The documentation online is plentiful, and the community support is amazing. It's now my go-to recommendation for students.
Anonymous
Mar 12, 2026
Rating: 4/5
Great value but pins are tight
Excellent performance for the price. The S3 chip handles AI tasks surprisingly well. My only complaint is that the pin headers are very close together, so you need precision when soldering or using jumper wires.
Anonymous
Mar 11, 2026
Rating: 4/5
Solid performance, runs cool
Been running this as a smart home sensor node for two weeks straight. It doesn't overheat even when transmitting data frequently. The form factor fits perfectly inside my custom 3D printed cases.
Anonymous
Mar 05, 2026
Rating: 5/5
Perfect compact board for IoT projects
This ESP32-S3-Zero is incredibly small yet powerful. The native USB support makes flashing code much faster than older models. I used it for a weather station project and the Wi-Fi connectivity is rock solid.
Anonymous
Mar 01, 2026
Rating: 5/5
Upgrade from ESP8266 was worth it
Migrated all my old projects to this board. The dual-core processor and better power management make a huge difference. Bluetooth LE works flawlessly with my phone app.
Q: Can I power this board with a 3.7V LiPo battery directly?
A: While the board operates at 3.3V, it is recommended to use a stable 5V source via the USB-C port or VIN pin. If using a LiPo, please ensure you have a proper charging and regulation circuit to avoid damaging the board.
Q: What is the maximum current draw for the GPIO pins?
A: Each GPIO pin can safely source or sink up to 40mA. However, the total current drawn from all GPIOs combined should not exceed the chip's specified limits to prevent instability.
Q: Is this compatible with the Arduino IDE out of the box?
A: Yes, it is fully compatible. You simply need to add the ESP32 board manager URL to your Arduino IDE preferences and install the latest ESP32 package by Espressif.
Q: Does it support OTA (Over-The-Air) updates?
A: Yes, the ESP32-S3-Zero supports OTA updates via Wi-Fi, allowing you to upload new firmware remotely without needing a physical USB connection after the initial setup.
Q: Does this board come with pre-soldered pin headers?
A: No, the board is typically sold without pre-soldered headers to keep the profile low. You will need to solder your own male or female headers depending on your project needs.
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