ESP32-S3 Zero development board with two loose 2.54mm male header strips

ESP32-S3 Zero Dev Board - Dual-Core, 2MB PSRAM, WiFi + BLE 5, RGB LED

$9.99 NZD
Save 5% at 2+
Skip to product information
ESP32-S3 Zero development board with two loose 2.54mm male header strips
  • ESP32-S3 Zero development board with two loose 2.54mm male header strips
  • Top view of the ESP32-S3 Zero showing the USB-C port, BOOT and RESET buttons, RGB LED and ceramic antenna
  • Underside of the ESP32-S3 Zero showing the eight rear GPIO pads 45, 42, 41, 40, 39, 38, 18 and 17
  • ESP32-S3 Zero pinout diagram with front rails, inner pads and rear pads labelled by GPIO and peripheral function
  • ESP32-S3 Zero dimensions drawing, 18.0 by 23.5 mm with 2.54 mm pin pitch
ESP32-S3 Zero Dev Board - Dual-Core, 2MB PSRAM, WiFi + BLE 5, RGB LED
SKU: ESP32-S3-ZERO-1PK

ESP32-S3 Zero Dev Board - Dual-Core, 2MB PSRAM, WiFi + BLE 5, RGB LED

$9.99 NZD
Dispatch: Within 24 hours 7-day dispatch, excluding public holidays

NZ Post: 1-2 days urban · 2-4 days rural

Shipping from $5.99 urban / $9.99 rural.

Buy more, pay less Prices shown are per unit. Add enough of this item and the lower rate applies on its own at checkout. There is no code to enter and you do not need to buy a pack. Choosing a tier here just sets the quantity for you. Larger quantities go out in the same bag, so packing, handling and postage cost us less per unit. We pass that saving straight on to you, so you can buy more for less.

Easy 30-day returns · 12-month warranty

Add these too
Free Urban delivery on orders over $66
Urban $66 Rural $88

The ESP32-S3 Zero fits a full dual-core ESP32-S3 into 23.5 x 18 mm. Two Xtensa LX7 cores at up to 240MHz with vector instructions for on-device ML, 4MB of flash alongside 2MB of PSRAM, 2.4GHz WiFi and Bluetooth 5 (LE), and a USB-C port the chip drives natively so there is no driver to chase. The edges are castellated with plated through-holes, so you can fit the supplied headers and breadboard it today, then reflow the same board straight onto your own carrier later.

  • ESP32-S3 dual-core Xtensa LX7, up to 240MHz
  • 4MB flash plus 2MB PSRAM, 512KB SRAM
  • 2.4GHz WiFi (802.11 b/g/n) and Bluetooth 5 (LE)
  • Vector (SIMD) instructions for TinyML and edge AI
  • Native USB OTG over USB-C, no driver to install
  • 26 GPIO broken out, 8 of them on the underside
  • Castellated edges plus through-holes for reflow or headers
  • Addressable WS2812 RGB LED on GPIO21

Specifications

ChipEspressif ESP32-S3FH4R2
CPUDual-core Xtensa LX7, up to 240MHz
Flash4MB, in package
PSRAM2MB, in package
SRAM512KB, plus 384KB ROM
WiFi2.4GHz 802.11 b/g/n
BluetoothBluetooth 5 (LE)
USBUSB-C, native USB Serial/JTAG and OTG
GPIO26 broken out, all PWM capable
Onboard LEDWS2812 addressable RGB on GPIO21
ButtonsBOOT and RESET
AntennaOnboard ceramic antenna
Logic voltage3.3V, not 5V tolerant
Dimensions23.5 x 18mm, 2.54mm pin pitch
MountingCastellated edges + plated through-holes
Full technical datasheet, pin map and boot notes PDF

What's in the box

1×
ESP32-S3 Zero board

Tested and powered up before it leaves us.

2×
2.54mm male header strips

Supplied loose, not fitted. Solder them straight, right-angle or low-profile to suit your build, or leave them off and reflow the board by its castellated edges.

Great for

Edge AI and TinyML on a tiny footprint
USB HID devices (keyboard and mouse emulation)
Reflowing onto your own PCB as a module
ESPHome and Home Assistant nodes
WiFi web servers, MQTT and REST devices
Addressable-LED and wearable projects

Good to know: Logic is 3.3V and the GPIO are not 5V tolerant, so level shift anything running at 5V. Program it through the free Arduino IDE (install the Espressif esp32 board package, select ESP32S3 Dev Module, set USB CDC On Boot to Enabled and PSRAM to QSPI PSRAM), or use PlatformIO, MicroPython, CircuitPython or ESPHome. Plug in with a USB-C data cable; if no port appears, hold BOOT, tap RESET, then release BOOT.

Frequently Asked Questions

Answers to the questions buyers ask most.

What is the Zero form factor?
A very small board with castellated edges plus plated through-holes. That means you can fit the supplied headers and use it on a breadboard, or reflow the whole board onto your own PCB like a module. At 23.5 x 18mm it is one of the smallest boards in the ESP32 family.
Does it really have PSRAM?
Yes. The chip is an ESP32-S3FH4R2, which carries 4MB of flash and 2MB of PSRAM in the same package, on top of the 512KB of SRAM in the silicon. The PSRAM is what makes camera buffers, larger TinyML models and bigger display framebuffers practical on a board this size.
Are the header pins fitted?
No. Two 2.54mm male header strips are supplied loose in the bag so you can choose straight, right-angle or low-profile, or skip them entirely and reflow the board by its castellated edges.
Can it act as a USB keyboard or mouse?
Yes. The ESP32-S3 has native USB OTG, so it can present as a USB HID device (keyboard, mouse, gamepad) as well as a serial port, without any bridge chip.
Does it need a driver?
No. The chip drives USB itself and enumerates as a native USB Serial/JTAG device, so Windows, macOS and Linux all see it with the driver already in the operating system. There is no CH340 or CP2102 on this board. Use a USB-C data cable, not a charge-only one.
How does it compare to the ESP32-C3 SuperMini?
The C3 SuperMini is a single-core RISC-V board with 13 GPIO and no PSRAM, and it is the cheaper option for simple WiFi and BLE jobs. The S3 Zero is dual-core, adds 2MB of PSRAM and vector instructions for ML, and breaks out 26 GPIO including eight pads on the underside. Pick the S3 Zero when you need the GPIO count, the memory or the USB HID support.
Which board do I select in the Arduino IDE?
Install the Espressif esp32 board package, then choose ESP32S3 Dev Module and set USB CDC On Boot to Enabled. Without that setting the Serial Monitor stays blank because the console is routed to the UART pins instead of USB.
How do I drive the onboard RGB LED?
It is a single WS2812 addressable LED on GPIO21. Use the Adafruit NeoPixel or FastLED library with one pixel on pin 21. There is no plain on/off LED on this board.

Have a Question About This Product?

Send it through and we will get back to you by email.

Why Buy from NZN

Useful parts, fair prices and someone local to help.

I'm Lukas, an engineering student and maker based in Te Awamutu. NZN grew out of a CNC build that dragged on for months because every missing cable, bolt or electronic part meant another overseas order. I started the shop so Kiwi makers can spend more time building and less time waiting for the next parcel.

More about NZN Electronics

  • Stocked here in New Zealand

    Orders are picked and packed in Te Awamutu and dispatched within 24 hours every day, excluding public holidays. NZ Post target delivery is 1-2 days urban and 2-4 days rural.

  • Fair prices, clearly shown

    Prices are kept competitive and quantity discounts are shown upfront. Free delivery starts at $66 for urban addresses and $88 for rural addresses.

  • 30-day returns and 12-month warranty

    Get in touch if something is not right and we will help sort it.

  • Practical product support

    Ask a product question and get help from a real person in New Zealand who knows the range.

You may also like