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# ESP32-H21

Announced ultra-low-power mesh SoC

An announced H2 evolution with Bluetooth LE, 802.15.4 and an integrated DC-DC converter.

AnnouncedVerified 2026-10-11

## Best for

- Future battery-powered Thread and Zigbee endpoints

## Avoid for

- Production-only schedules or Wi-Fi products

## CPU & memory

Architecture

RISC-V

Core(s)

1

Maximum clock

Not confirmed

On-chip SRAM

Not confirmed

ROM

Not confirmed

Flash

In-package by part

PSRAM

Not confirmed

Packages

Not confirmed

## Wireless

Wi-Fi

None

Wi-Fi max rate

Not confirmed

Bluetooth

Bluetooth 5 LE

IEEE 802.15.4

Yes

## Interfaces

USB OTG

No

USB Serial/JTAG

Yes

Ethernet MAC

No

Camera

No

Display

No

SD/MMC

No

Maximum GPIO

Not confirmed

## Security

Secure boot

Not confirmed

Flash encryption

Not confirmed

Crypto accelerators

Not confirmed

TEE / APM

Not confirmed

## Analog & power

ADC channels

Not confirmed

ADC resolution

Not confirmed

Touch sensing

Not confirmed

Touch channels

Not confirmed

Supply voltage

Not confirmed

ULP core

Not confirmed

Deep-sleep current

Not confirmed

## Lifecycle & timing

Announced

2026-03-03

Mass production

Not confirmed

NRND

Not confirmed

EOL

Not confirmed

## Official modules

Every official ESP32 base module, grouped by series. Status follows the ordering codes; "Mixed" means they differ.

Module

Status

Form factor

Antenna

Flash

PSRAM

ESP32-H21-MINI-1

Officially listed

MINI

PCB

Not confirmed

Not confirmed

## Official development boards

Official Espressif development boards, including discontinued boards from the per-series EOL lists.

Board

Status

Board type

ESP32-H21-DevKitM-1

Officially listed

DevKitM

Where to buy

## Official page and distributor search

These are search and official pages, not live stock or price quotes. Confirm the exact ordering code with the seller.

[Espressif product page ↗](https://www.espressif.com/en/products/socs/esp32-h21)[Authorized distributors ↗](https://www.espressif.com/en/contact-us/distributors)[Search LCSC ↗](https://www.lcsc.com/search?q=ESP32-H21)[Search Digi-Key ↗](https://www.digikey.com/en/products/result?keywords=ESP32-H21)[Search Mouser ↗](https://www.mouser.com/c/?q=ESP32-H21)

## Official chip ordering codes

Each row is an official SoC or SiP. Buy links search that exact part name.

Part

Status

Package

Flash

PSRAM

Buy

ESP32-H21HF4

Announced

Package data pending

See datasheet

None confirmed

[Search LCSC](https://www.lcsc.com/search?q=ESP32-H21HF4)[Search Digi-Key](https://www.digikey.com/en/products/result?keywords=ESP32-H21HF4)[Search Mouser](https://www.mouser.com/c/?q=ESP32-H21HF4)

Chip package

## Chip pin map

Package top view from the official series datasheet. Filter pins or open the accessible table. This is a reference map, not an electrical simulator.

Authority boundary

### Official pin data pending

Espressif has not yet published enough package pin data for an authoritative interactive map.

**Last checked: 2026-10-11**

## Official evidence

[Official source: ESP32-H21 product page ↗](https://www.espressif.com/en/products/socs/esp32-h21)[Official source: ESP32-H21 Announcement ↗](https://www.espressif.com/en/news/ESP32_H21)

esp.run is an independent guide and is not affiliated with Espressif Systems.

Independent guideData verified 2026-10-11

[Official sources ↗](https://www.espressif.com/en/products/socs)