ESP32-C2
The smallest low-cost Wi-Fi entry
A compact 120 MHz RISC-V MCU with 2.4 GHz Wi-Fi 4 and Bluetooth LE.
Best for
- Cost-sensitive simple connected devices
Avoid for
- Native USB, Thread or memory-heavy applications
CPU & memory
- Architecture
- RISC-V
- Core(s)
- 1
- Maximum clock
- 120 MHz
- On-chip SRAM
- 272 KB
- ROM
- 576 KB
- Flash
- In-package by part
- PSRAM
- Not confirmed
- Packages
- QFN24 4×4 mm
Wireless
- Wi-Fi
- 2.4 GHz Wi-Fi 4
- Wi-Fi max rate
- 72.2 Mbps
- Bluetooth
- Bluetooth 5 LE
- IEEE 802.15.4
- No
Interfaces
- USB OTG
- No
- USB Serial/JTAG
- No
- Ethernet MAC
- No
- Camera
- No
- Display
- No
- SD/MMC
- No
- Maximum GPIO
- 20
Security
- Secure boot
- Yes
- Flash encryption
- Yes
- Crypto accelerators
- ECC · SHA · RNG
- TEE / APM
- No
Analog & power
- ADC channels
- 5
- ADC resolution
- 12-bit
- Touch sensing
- No
- Touch channels
- None
- Supply voltage
- 3.0–3.6 V
- ULP core
- None
- Deep-sleep current
- 5 µA
Lifecycle & timing
- Announced
- Not confirmed
- 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 |
|---|---|---|---|---|---|
| ESP8684-MINI-1 | Available | MINI | PCB | Not confirmed | Not confirmed |
| ESP8684-MINI-1U | Available | MINI | Connector | Not confirmed | Not confirmed |
| ESP8684-WROOM-01C | Available | WROOM | PCB | Not confirmed | Not confirmed |
| ESP8684-WROOM-02C | Available | WROOM | PCB | Not confirmed | Not confirmed |
| ESP8684-WROOM-02UC | Available | WROOM | Connector | Not confirmed | Not confirmed |
| ESP8684-WROOM-03 | Available | WROOM | PCB | Not confirmed | Not confirmed |
| ESP8684-WROOM-04C | Available | WROOM | PCB | Not confirmed | Not confirmed |
| ESP8684-WROOM-05 | Available | WROOM | PCB | Not confirmed | Not confirmed |
| ESP8684-WROOM-06C | Available | WROOM | PCB | Not confirmed | Not confirmed |
| ESP8684-WROOM-07 | Available | WROOM | 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 |
|---|---|---|
| ESP8684-DevKitC-02 | Available | DevKitC |
| ESP8684-DevKitM-1 | Available | 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.
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 |
|---|---|---|---|---|---|
| ESP8684H2X | Available | QFN24 | See datasheet | None confirmed | Search LCSCSearch Digi-KeySearch Mouser |
| ESP8684H4X | Available | QFN24 | See datasheet | None confirmed | Search LCSCSearch Digi-KeySearch Mouser |
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.
Complete accessible pin table
| Physical pin | Label | Functions | Direction | Warnings |
|---|---|---|---|---|
| 1 | ANT | Input | — | |
| 2 | VDDA3P3 | Power | — | |
| 3 | VDDA3P3 | Power | — | |
| 4 | GPIO0, GPIO Matrix | Bidirectional | — | |
| 5 | GPIO1, GPIO Matrix | Bidirectional | — | |
| 6 | GPIO2, GPIO Matrix | Bidirectional | — | |
| 7 | CHIP_EN | Input | Enable pin. Do not leave it floating; follow the datasheet power-up circuit. | |
| 8 | GPIO3, GPIO Matrix | Bidirectional | — | |
| 9 | MTMS | Bidirectional | JTAG and boot-related function. Verify the part-specific reset configuration. | |
| 10 | MTDI | Bidirectional | JTAG and boot-related function. Verify the part-specific reset configuration. | |
| 11 | VDD3P3_RTC | Power | — | |
| 12 | MTCK | Bidirectional | JTAG and boot-related function. Verify the part-specific reset configuration. | |
| 13 | MTDO | Bidirectional | JTAG and boot-related function. Verify the part-specific reset configuration. | |
| 14 | GPIO8, GPIO Matrix | Bidirectional | — | |
| 15 | GPIO9, GPIO Matrix | Bidirectional | — | |
| 16 | GPIO10, GPIO Matrix | Bidirectional | — | |
| 17 | VDD3P3_CPU | Power | — | |
| 18 | GPIO18, GPIO Matrix | Bidirectional | — | |
| 19 | U0RXD | Bidirectional | — | |
| 20 | U0TXD | Bidirectional | — | |
| 21 | VDDA | Power | — | |
| 22 | XTAL_N | Input | — | |
| 23 | XTAL_P | Input | — | |
| 24 | VDDA | Power | — | |
| 25 | GND | Power | — |
Official evidence
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