{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ESP32-C3-MINI-1-H4-ES","brand":"Espressif Systems","brandSlug":"espressif","productSlug":"ESP32-C3-MINI-1-H4-ES","canonicalUrl":"https://icboms.com/espressif/ESP32-C3-MINI-1-H4-ES","factsUrl":"https://icboms.com/api/mcp/products/ESP32-C3-MINI-1-H4-ES","rawCanonicalId":null},"summary":{"shortDescription":"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","salesMarkdown":"## 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.","metaTitle":"ESP32-C3-MINI-1-H4-ES WiFi/Bluetooth Module","metaDescription":"ESP32-C3-MINI-1-H4-ES from Espressif Systems, ESP32-C3 series, 4MB Flash, 400kB SRAM, PCB trace antenna, -40°C to 105°C. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF & Wireless ICs"],"specifications":{"Mfr":"Espressif Systems","Series":"ESP32-C3","Package":"Bulk","Protocol":"802.11b/g/n, Bluetooth v5.0","Data Rate":"2Mbps","Frequency":"2.412GHz ~ 2.484GHz","Modulation":"-","Memory Size":"4MB Flash, 384kB ROM, 400kB SRAM","Sensitivity":"-98dBm","Antenna Type":"PCB Trace","Mounting Type":"Surface Mount","Package / Case":"Module","Power - Output":"20.5dBm","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 3.6V","Serial Interfaces":"GPIO, I²C, I²S, SPI, UART","RF Family/Standard":"Bluetooth, WiFi","Utilized IC / Part":"ESP32-C3FH4","Current - Receiving":"84mA","Operating Temperature":"-40°C ~ 105°C","Current - Transmitting":"350mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.9000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/c12b9af2c3e3ac5c34e94ba852fe2000.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/ESP32-C3-MINI-1-H4-ES/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between ESP32-C3-MINI-1-H4-ES and ESP32-C3-MINI-1?","answer":"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."},{"question":"Is the ESP32-C3-MINI-1-H4-ES discontinued or obsolete?","answer":"No — the product status is Active. No end-of-life or last-time-buy notice is published by Espressif."},{"question":"Does the ESP32-C3-MINI-1-H4-ES require an external antenna?","answer":"No. The module integrates a PCB trace antenna. No external antenna, connector, or matching network is needed on the host board."},{"question":"Can I program the ESP32-C3-MINI-1-H4-ES with Arduino IDE?","answer":"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."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/espressif/ESP32-C3-MINI-1-H4-ES","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/espressif/ESP32-C3-MINI-1-H4-ES when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}