![Main product image for TinyS3[D]](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzQwOTUsInB1ciI6ImJsb2JfaWQifX0=--753f501efd4dba407cc02bfc3811cc1dc48bf124/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJwbmciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--605f1da017bcbb03ce31845cd0e81d97e3b3c574/TinyS3D.png)
![Product image 2 for TinyS3[D]](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzQwOTEsInB1ciI6ImJsb2JfaWQifX0=--3572961b99389e7b9bd2bb9f69a726b0b03d4469/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJwbmciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--605f1da017bcbb03ce31845cd0e81d97e3b3c574/TinyS3D_pinout1uDick.png)
![TinyS3[D] features](https://unexpectedmaker.com/images/features/main_features_tinys3d.webp)
TinyS3[D] is the TinyS3 you know, re-designed with the Series[D] upgrades: an onboard antenna and a u.FL connector on the same board, switchable from your code, an I²C fuel gauge for accurate battery monitoring & a new ultra low power 1010 Neopixel RGB LED. It keeps its TinyPICO-compatible footprint.
![Series[D] features: Both antennas. One board. · Switch in software. · Know your battery.](https://unexpectedmaker.com/images/product-content/series-d-features-tinys3d.gif)
NOTE The onboard antenna is selected by default, so you never need to worry about the RF switch being in a bad state, or the ESP32-S3 getting damaged if you forget to plug in an external antenna.
| Processor | ESP32-S3FN8 · 32-bit · Dual-core LX7 · up to 240 MHz |
| Flash | 8 MB QSPI |
| PSRAM | 8 MB QSPI |
| GPIO | 17 |
| Wireless | Wi-Fi 4 2.4 GHz · 802.11b/g/n · BLE 5 + Mesh |
| Coprocessor | RISC-V ultra-low-power coprocessor |
| USB | USB-C · native USB + USB Serial/JTAG |
| Protection | USB back-feed protection |
| Power | 700 mA · 3.3 V regulator |
| Sleep | Ultra-low deep sleep current |
| Battery | LiPo charging · I²C battery fuel gauge · JST PH connector pads on the back |
| Sensing | 5V sense pins |
| Onboard | Ultra Low-power RGB LED |
| Antenna | 3D high-gain antenna and u.FL connector · software switching |
| Format | TinyPICO and TinyS2 compatible |
| Size | 36.3 × 17.8 mm |
| Thickness | 4.3 mm at the USB-C end |
In the box
TinyC6[D], TinyPICO[D] and TinyS3[D] specifications
| TinyC6[D] | TinyPICO[D] | TinyS3[D] | |
|---|---|---|---|
| MCU | ESP32-C6 | ESP32-PICO-D4 | ESP32-S3FN8 |
| Flash | 8 MB | 4 MB | 8 MB |
| PSRAM | None | 4 MB | 8 MB |
| Available IO | 17 | 14 | 17 |
| 2.4 GHz Wi-Fi | Wi-Fi 6 | Wi-Fi 4 | Wi-Fi 4 |
| Bluetooth | BLE 5.3 | Classic BT + BLE 4.2 | BLE 5 + Mesh |
| Zigbee / Thread | Zigbee + Thread | — | — |
| USB | USB-C 2.0 · Serial/JTAG | USB-C 2.0 · USB-to-serial | USB-C 2.0 · OTG / Serial / JTAG |
| 3.3 V regulators | 1 × 700 mA | 1 × 700 mA | 1 × 700 mA |
| RGB LED | NeoPixel | NeoPixel | NeoPixel |
| Antenna | Onboard + u.FL · software switch | Onboard + u.FL · software switch | Onboard + u.FL · software switch |
| Battery | 1S LiPo charging · I²C fuel gauge | 1S LiPo charging · I²C fuel gauge | 1S LiPo charging · I²C fuel gauge |
| Size | 36.3 × 17.8 mm | 36.3 × 17.8 mm | 36.3 × 17.8 mm |
Please have a read through our Getting Started Guide for information on how to start using your TinyS3 Development Board.
The TinyS3[D] 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 TinyS3[D] with the latest CircuitPython firmware, whenever you desire.
Of course, you can choose from a wonderful array of other languages and platforms. Explore them all below....
Download TinyS3[D] resources, including the schematic, 3D model, KiCAD footprint and more.
The Unexpected Maker Series[D] GitHub repository includes:
Documentation (unexpectedmaker.com)
All products purchased on this store ship directly from me here in Melbourne, Australia.
Orders are processed daily and usually go out the same day they are paid for - allowing for time zone differences of course.
Finally, postage rates suck, sorry :( I'm embarrassed by how much it costs to ship items overseas since COVID, and I do my best to improve rates where I can.
Postage delivery times, if stated, are based on current expectations from Australia Post and may vary.
Please keep in mind that there are still occasional postage delays, including flights out of Australia and inbound customs processing into many countries.
