> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# ProS3 ESP32-S3 Dev board

**Type:** Product page · **SKU:** CE08579 · **Brand:** [Unexpected Maker](https://core-electronics.com.au/brands/unexpected-maker)
**Page:** https://core-electronics.com.au/pros3-esp32-s3-dev-board-1.html ([markdown](https://core-electronics.com.au/pros3-esp32-s3-dev-board-1.html.md))

## Retired product

This product is retired and no longer available for purchase. Replaced by: CE10242.

**Replacement:** https://core-electronics.com.au/catalog/product/view/sku/CE10242

> ⚠ Check out the ***new ProS3 \[D\]*** the same Unexpected Maker board we all love - but now with both onboard and external antennas, switchable with a GPIO!

## How to buy

- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

### Introducing the ProS3!

The ESP32-S3 is the new flagship MCU from Espressif, Packed in with amazing features and peripherals, wireless connectivity and support for an amazing amount of Flash and extra PSRAM. The ProS3 kicks it up a notch or three, with ESD protection, Castellated headers and TinyPICO compatibility!

### Ships with CircuitPython pre-installed!

The ProS3 ships with the latest version of CircuitPython that supports the ESP32-S3. It also ships with the UF2 bootloader, so you can easily update your ProS3 with the latest CircuitPython firmware, whenever you desire.

As newer versions of CircuitPython are released, you are able to update as you require from [ciruitpython.org](https://circuitpython.org/board/unexpectedmaker_tinys2/)

### Code any way you like!

There is also ESP-IDF and [a MicroPython port](https://micropython.org/download/pros3/) available as well. Visit the [ProS3 product page](https://pros3.io/) for more details.

### Features & Specifications

- 32Bit Dual Core 240MHz
- RISC-V ultra low power core
- 2.4GHz WiFi - 802.11b/g/n
- Bluetooth 5, BLE + Mesh
- **16MB QSPI Flash**
- 8MB Extra QSPI PSRAM
- USB-C Connector
- **USB ESD protection**
- Reverse USB back-feed protection
- 2x 700mA 3.3V LDO Regulator
- Ultra low deep sleep current
- STEMMA connector
- Low Power RGB LED
- VBAT voltage check and 5V presence detection
- LiPo Battery Charging
- MicroBlade LiPo connector
- Power (red), Charge (orange) LEDs
- 27x GPIO broken out
- Castellated Headers
- JTAG Pins + USB Serial JTAG
- 3D High Gain Antenna
- Compatible with TinyPICO, TinyS2 & TinyS3
 
### Resources

- [Getting Started Guide](https://esp32s3.com/getting-started.html)
- [GitHub](https://github.com/unexpectedmaker/esp32s3)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/C/E/CE08579-3.jpg)