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TinyS3[D] is the best of our super popular range of "Tiny" development boards.
ESP32
WiFi
USB

TinyS3[D] features

Meet TinyS3[D]

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.

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.

Features & Specifications
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

  • Included: Colour pinout card · Unassembled male headers · Unassembled JST PH battery connector · Antistatic bag
  • Optional: external 2.4GHz antenna

Compare the tiny Series[D] boards.

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

Pinout compatibility matrix

Pinout compatibility matrix

Getting Started Using Your TinyS3[D]

Please have a read through our Getting Started Guide for information on how to start using your TinyS3 Development Board.

Code any way you like!

Ships with CircuitPython pre-installed!

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....

Downloads

Download TinyS3[D] resources, including the schematic, 3D model, KiCAD footprint and more.

GitHub

The Unexpected Maker Series[D] GitHub repository includes:

  • 3D STEP file for TinyS3[D]
  • High-resolution pinout reference card for TinyS3[D]
  • Helper libraries for Arduino and CircuitPython shipping files

Open GitHub repository →

Links to code and documentation

Documentation (unexpectedmaker.com)

Code (unexpectedmaker.com)

Design Files (github.com)

Schematics (github.com)

Product HS Code: 8542310070

Shipping policy

All products purchased from this store ship directly from me here in Melbourne, Australia. Orders are processed daily and usually go out within a few days! I'm currently unable to ship to Germany, Denmark, or Sweden, but I am doing my best to work with Australia Post and Zonos about this issue; sorry for any inconvenience. Finally, postage rates suck, and they keep going up; sorry :(

This product does not ship to United States.

TinyS3[D]

Sold by Unexpected Maker

$20.00

No tax for United States [change]
This store is temporarily paused. I'm currently having shipments to the EU being rejected again :( It seems Australia Post has not fixed their customs submission system - so until they do, I have to stop selling here again, sorry.
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The seller

Unexpected Maker

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Moorabbin, Victoria, Australia
280 orders since Apr 21, 2022
I'm Seon, the Unexpected Maker!
I design and manufacture my own range of electronics products, mostly around micro-controllers, IOT and products that help with manufacturing.
I'm based in Melbourne, Australia, and all products are made by me and shipped from here to hobbyists, makers, companies and resellers around the world.