# ESP32-S3 SuperMini: specs

> A very small third-party development board built around an ESP32-S3 series chip with Wi-Fi and Bluetooth LE.

[HTML version](https://soldr.ai/docs/boards/esp32-s3-supermini)

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A very small third-party development board built around an ESP32-S3 series chip with Wi-Fi and Bluetooth LE.

Every value cites its sourcePinout not published

[Buy on Compoden](https://compoden.com/products/esp32-s3-supermini-development-board-wifi-bluetooth-le-ultra-compact-ai-iot-microcontroller)

## Specs

| Spec | Value | Source |
|---|---|---|
| Supply voltage (chip) | 3.0 V to 3.6 V recommended (3.3 V typical) | source Table 5-2 Recommended Operating Conditions (p.64) |
| Recommended supply current (single supply) | 500 mA or more | source Table 5-2 note 4 (p.64) |
| Wireless | 2.4 GHz Wi-Fi (IEEE 802.11b/g/n) and Bluetooth 5 (LE) | source Cover page (p.1) |
| CPU | Xtensa 32-bit LX7 dual-core | source Cover page / Product Overview (p.1) |
| GPIO count (chip) | 45 GPIOs on the chip (the board brings out fewer) | source Cover page (p.1) |
| Pin source current | 40 mA typ per pin (VDD 3.3 V, VOH >= 2.64 V, PAD_DRIVER = 3) | source Table 5-4 DC Characteristics (p.65) |
| Pin sink current | 28 mA typ per pin (VDD 3.3 V, VOL = 0.495 V, PAD_DRIVER = 3) | source Table 5-4 DC Characteristics (p.65) |
| Input high level VIH | 0.75 x VDD min, VDD + 0.3 V max | source Table 5-4 DC Characteristics (p.65) |

## Power

| | Value | Source |
|---|---|---|
| Supply | 3.0 V to 3.6 V at the chip | source Table 5-2 (p.64), Table 5-7 (p.66) |
| Current | Wi-Fi peak TX 340 mA (802.11b 1 Mbps, 21 dBm); RX peak 88 mA (802.11b/g/n HT20) | source Table 5-2 (p.64), Table 5-7 (p.66) |

## Pinout
We don't publish a pin table for this part: no official source we could verify gives one. Check the labels printed on your module, and see the notes below.

The SuperMini is a third-party board with no official pinout or schematic found. Only the ESP32-S3 chip datasheet applies; board pin labels, regulator and USB wiring are not covered.

## Build with it
Project ideas for the ESP32-S3 SuperMini. Each link opens Soldr with the prompt filled in; Soldr assigns the pins, checks power and shows how to wire every part.

- [Bluetooth plant monitor](https://app.soldr.ai/?prompt=I%20want%20to%20build%20a%20plant%20moisture%20monitor%20with%20an%20ESP32-S3%20SuperMini%20and%20a%20capacitive%20soil%20moisture%20sensor): The analog soil sensor goes to an ADC-capable pin; a learning project, calibrate dry and wet readings yourself.
- [Tiny motion logger](https://app.soldr.ai/?prompt=I%20want%20to%20build%20a%20small%20motion%20logger%20with%20an%20ESP32-S3%20SuperMini%20and%20an%20MPU6050%20module): The MPU6050 module talks I2C; check that the module logic level is 3.3 V compatible before connecting.
- [Desk weather display](https://app.soldr.ai/?prompt=I%20want%20to%20build%20a%20desk%20temperature%20and%20humidity%20display%20with%20an%20ESP32-S3%20SuperMini%2C%20a%20DHT22%20and%20a%200.96%20inch%20OLED): DHT22 on one GPIO and the OLED on I2C, both run from the board 3.3 V.
- [Light level logger](https://app.soldr.ai/?prompt=I%20want%20to%20build%20a%20room%20light%20level%20logger%20with%20an%20ESP32-S3%20SuperMini%20and%20an%20LDR%20light%20sensor%20module): A learning project reading the module analog output on an ADC pin; the module output must stay at or below 3.3 V.

## Common mistakes

- Do not feed 5 V into a GPIO: the chip input high level maximum is VDD + 0.3 V (source: [link](https://www.espressif.com/sites/default/files/documentation/esp32-s3_datasheet_en.pdf), Table 5-4, p.65).
- The datasheet recommends a single supply that can deliver 500 mA or more (source: [link](https://www.espressif.com/sites/default/files/documentation/esp32-s3_datasheet_en.pdf), Table 5-2 note 4, p.64).

## Not covered by the official source

- No official SuperMini document: pinout, USB, regulator, flash/PSRAM size and exact chip variant are unknown.
- Chip temperature range depends on the variant (Table 1-1), so it is not given.

## Sources

- [link](https://www.espressif.com/sites/default/files/documentation/esp32-s3_datasheet_en.pdf) (ESP32-S3 Series Datasheet v2.2, Espressif)