> **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 \[D\] ESP32-S3 Development Board

**Type:** Product page · **SKU:** CE10240 · **Brand:** [Unexpected Maker](https://core-electronics.com.au/brands/unexpected-maker)
**Page:** https://core-electronics.com.au/unexpected-maker-tinys3-d-esp32-s3-development-board.html ([markdown](https://core-electronics.com.au/unexpected-maker-tinys3-d-esp32-s3-development-board.html.md))

Compact ESP32-S3 dev board with switchable onboard/u.FL antenna, USB-C, LiPo charging and CircuitPython pre-installed, programmable with MicroPython, Arduino or ESP-IDF.

## Pricing

- **Price:** $33.49 (inc GST) — $30.45 AUD, exc GST

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 27 today; more stock is typically available with a 4–6 day lead time.

## How to buy

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- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **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

Take your next compact IoT build further with TinyS3\[D\] - an ESP32-S3 development board that pairs flexible radio options with maker-friendly power and I/O.

Switch between the onboard 3D high-gain antenna and a u.FL external antenna in firmware, then prototype fast with native USB, battery charging and plenty of GPIO on a board smaller than your thumb. From low-power sensor nodes to USB projects and wireless prototypes, TinyS3\[D\] gives you WiFi and Bluetooth LE 5 connectivity, CircuitPython out of the box, and a clean path to ESP-IDF, Arduino, MicroPython or PlatformIO when your project requires.

*uFL antenna not included.*

### Technical Specifications

 | Microcontroller | ESP32-S3 with dual 32 bit Xtensa LX7 cores, up to 240 MHz |
|---|---|
| Ultra Low Power | RISC-V ULP co-processor; ultra-low deep sleep current |
| Wireless | 2.4 GHz WiFi 802.11 b/g/n; Bluetooth LE 5 + Mesh |
| Memory | 8 MB QSPI Flash + 8 MB QSPI PSRAM |
| Antenna options | Onboard 3D high-gain antenna and u.FL connector; RF switch controllable in code; onboard antenna selected by default (GPIO38) |
| USB | USB-C connector with back-feed protection; native USB + USB Serial JTAG |
| Power | 700 mA 3.3 V LDO regulator |
| Battery | LiPo battery charging; pads on the back for JST PH connector; I2C battery fuel gauge |
| I/O | 17 GPIO; 5 V sense pins |
| Indicators | Low-power RGB LED |
| Dimensions | 36.3 x 17.8 mm; max thickness 4.3 mm at the USB-C end |
| Compatibility | Compatible with TinyPICO and TinyS2 families |
| Pre-installed firmware | CircuitPython with UF2 bootloader |

### Additional Resources

- [Getting Started Guide](https://esp32s3.com/getting-started.html)
- [Unexpected Maker Tiny board comparison matrix](https://d2j6dbq0eux0bg.cloudfront.net/images/wysiwyg/product/90477757/759468759/1752135854690-2125585892/tiny_board_comparison_matrix_jpg.jpg)
- [Pinout compatibility matrix](https://s3.amazonaws.com/images.ecwid.com/images/wysiwyg/product/90477757/602208790/1699344246507962359259/TinyXXX_Pinout_Matrix_jpg) for quick pin mapping reference.
 
### What’s Included

- TinyS3\[D\] ESP32-S3 Development Board
- Colour pinout card
- Unassembled male headers
- Unassembled JST PH battery connector

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/C/E/CE10240-2.jpg)