> **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

# TinyS3 ESP32-S3 Dev board

**Type:** Product page · **SKU:** CE08577 · **Brand:** [Unexpected Maker](https://core-electronics.com.au/brands/unexpected-maker)
**Page:** https://core-electronics.com.au/tinys3-esp32-s3-dev-board-1.html ([markdown](https://core-electronics.com.au/tinys3-esp32-s3-dev-board-1.html.md))

## Retired product

This product is retired and no longer available for purchase. Replaced by: CE10240.

**Replacement:** https://core-electronics.com.au/catalog/product/view/sku/CE10240

## 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

The ProS3 ships with the latest version of CircuitPython with ESP32-S3 support. It also ships with the UF2 bootloader, so you can easily update your ProS3 with the latest CircuitPython firmware, whenever you desire. Just plug your ProS3 into your computer and it will appear in your filesystem as a USB flash drive! Just copy your code over, or edit your code directly on the drive. Coding a microcontroller has never been easier!

As newer versions of CircuitPython are released, you are able to update as you require from [circuitpython.org](https://circuitpython.org/board/unexpectedmaker_pros3/) If you need to grab the shipping CircuitPython code that comes with the ProS3, you can grab the [latest here](https://github.com/unexpectedmaker/esp32s3/)

You can also use Arduino 2.0.3 or later, which has added S3 support. There is also ESP-IDF and an early MicroPython port available as well. Visit the [ProS3 product page](https://pros3.io/) for more details.

**Features & Specifications**

- Dual 32bit Xtensa LX7 cores @ up to 240Mhz
- RISC-V Ultra Low Power Co-processor
- 2.4GHz Wifi - 802.11b/g/n
- Bluetooth 5, BLE + Mesh
- 16MB QSPI Flash
- 8MB of extra QSPI PSRAM
- 2x 700mA 3.3V LDO Regulators
- LDO2 is user controlled & auto-shuts down in deep-sleep
- Low power RGB LED
- Ultra low deep sleep current
- USB-C Connector with back-feed protection
- USB ESD protection
- Native USB + USB Serial JTAG
- LiPo Battery Charging + PicoBlade connector
- VBAT and 5V Sense Pins
- 3D High Gain Antenna
- STEMMA connector powered by LDO1
- 27x GPIO including castellated headers
- JTAG pins on the header

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/C/E/CE08577-3.jpg)