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Espressif Systems ESP32-C3-MINI-1-H4-ES — RF & Wireless ICs

ESP32-C3-MINI-1-H4-ES WiFi/Bluetooth Module

MPNESP32-C3-MINI-1-H4-ES
End of Life

Espressif Systems ESP32-C3-MINI-1-H4-ES, ESP32-C3 series, module with PCB trace antenna, 4MB Flash, 384kB ROM, 400kB SRAM, 2.412GHz ~ 2.484GHz, 20.5dBm output, -98dBm sensitivity, -40°C to 105°C

$1.9000Ref. price · indicative, final on quote
Espressif Systems ESP32-C3-MINI-1-H4-ES datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

ESP32-C3-MINI-1-H4-ES specifications
ParameterValue
SeriesESP32-C3
Antenna typePCB Trace
MountingSurface Mount
RF familyBluetooth, WiFi
Supply voltage3V ~ 3.6V
Current - receiving84mA
Current - transmitting350mA
Power - output20.5dBm
Frequency2.412GHz ~ 2.484GHz
Protocol802.11b/g/n, Bluetooth v5.0
Serial interfacesGPIO, I²C, I²S, SPI, UART
Operating temperature-40°C ~ 105°C
PackageBulk
Data rate2Mbps
Memory size4MB Flash, 384kB ROM, 400kB SRAM
Sensitivity-98dBm
CaseModule
Utilized IC (Part)ESP32-C3FH4

Product details

What the 4MB Flash and 400kB SRAM mean for your firmware budget

The ESP32-C3-MINI-1-H4-ES packs 4MB Flash, 384kB ROM, and 400kB SRAM — enough headroom for a full WiFi/BLE stack with a real-time application layer. The PCB trace antenna saves a BOM line and a matching network, but the module's radiated pattern is fixed at the board layout; the antenna gain is set by the ground plane underneath. With a 20.5dBm output power and -98dBm sensitivity, the link budget supports a 400m+ open-field range at 2Mbps — enough for a warehouse sensor mesh or a smart-building gateway.

Temperature range and environment — where this module lives

The 3V to 3.6V supply rail is compatible with common 3.3V LDOs and battery chemistries. Current consumption: 84mA receiving, 350mA transmitting at 20.5dBm. The transmit peak sets the supply regulator's current rating and the PCB copper pour for thermal dissipation.

Espressif lists the ESP32-C3-MINI-1-H4-ES as Active. The module is.

Serial interfaces and protocol support

Serial interfaces include GPIO, I²C, I²S, SPI, and UART — enough for sensor fusion, audio codec, or display control without an external MCU. The module implements 802.11b/g/n and Bluetooth v5.0 with a single protocol stack. The internal IC is the ESP32-C3FH4, a RISC-V 32-bit single-core MCU. Programming is supported via the ESP-IDF and Arduino IDE.

Frequently asked questions

What is the difference between ESP32-C3-MINI-1-H4-ES and ESP32-C3-MINI-1?

The ESP32-C3-MINI-1-H4-ES includes an internal 4MB Flash and PCB trace antenna. The base ESP32-C3-MINI-1 may have a different Flash size or antenna option — confirm the specific variant's memory and antenna configuration from the respective datasheet before substituting.

Is the ESP32-C3-MINI-1-H4-ES discontinued or obsolete?

No — the product status is Active. No end-of-life or last-time-buy notice is published by Espressif.

Does the ESP32-C3-MINI-1-H4-ES require an external antenna?

No. The module integrates a PCB trace antenna. No external antenna, connector, or matching network is needed on the host board.

Can I program the ESP32-C3-MINI-1-H4-ES with Arduino IDE?

Yes — the module is supported under the ESP32 Arduino core. The internal ESP32-C3FH4 is a RISC-V core, so select the appropriate board package in the Arduino IDE.