> **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

# ESP32-S2 WROOM Module - 4MB (PCB Antenna)

**Type:** Product page · **SKU:** WRL-18583 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/esp32-s2-wroom-module-4mb-pcb-antenna.html ([markdown](https://core-electronics.com.au/esp32-s2-wroom-module-4mb-pcb-antenna.html.md))

It's best to think of the ESP32-S2 WROOM Module as the next step in the ESP32 WROOM module line...

## Pricing

- **Price:** $5.20 (inc GST) — $4.73 AUD, exc GST
- **Quantity discounts:** 5+ $4.58 (exc GST) · 25+ $4.49 (exc GST) · 100+ $4.30 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Sep 07 and Sep 11.

## 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

It's best to think of the ESP32-S2 WROOM Module as the next step in the ESP32 WROOM module line. It builds on the benefits of the original [ESP32 WROOM Module](https://core-electronics.com.au/search/?q=17830) with new and improved features such as security, display support, and increased environmental performance. Featuring transparent external flash and RAM encryption, secure boot features allowing only signed firmware, as well as included HMAC and Digital Signature modules that use software inaccessible keys to generate SHA-MAC and MAC signatures solving most of the security flaws of the previous generation.

The module features the ESP32-S2 Xtensa® single-core 32-bit LX7 microprocessor, up to 240 MHz. The module includes the same rich peripherial set you've come to expect from the ESP32 Line: 43 GPIOs, 1 full-speed USB OTG interface, SPI, I2S, UART, I2C, LED PWM, LCD interface, camera interface, ADC, DAC, touch sensor, and a temperature sensor. It can also be configured to provide USB OTG functionality or an LCD interface.

The module comes fully certified with integrated antenna and software stacks and 4MB of flash. It's operating temperature range is an expanded -40 to 125 degrees Celsius!

- MCU 
    - ESP32-S2 embedded, Xtensa® single-core 32-bit LX7 microprocessor, up to 240 MHz
    - 128 KB ROM
    - 320 KB SRAM
    - 16 KB SRAM in RTC
- Wi-Fi 
    - 802.11 b/g/n
    - Bit rate: 802.11n up to 150 Mbps
    - A-MPDU and A-MSDU aggregation
    - 0.4µs guard interval support
    - Center frequency range of operating channel: 2412 ~ 2484 MHz
- Hardware 
    - Interfaces: GPIO, SPI, LCD, UART, I2C, I2S, Camera interface, IR, pulse counter, LED PWM, TWAITM (compatible with ISO 11898-1), USB OTG 1.1, ADC, DAC, touch sensor, temperature sensor
    - 40 MHz crystal oscillator
    - 4 MB SPI flash
    - Operating voltage/Power supply: 3.0 ~ 3.6 V
    - Operating temperature range: –40 ~ 85 °C
    - Dimensions: (18 × 31 × 3.3) mm
- RoHS/REACH certified
- FCC/CE-RED/SRRC Certified (RF)
 
 Documents - [Datasheet](https://core-electronics.com.au/attachments/localcontent/DS-18583-ESP32-S2_WROOM_Module_-_4MB__PCB_Antenna__82205674f04.pdf)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/i/m/image_3345.jpg)