To identify an ESP32-C3 Super Mini’s chip revision, inspect the chip package under angled light, photograph its markings sharply, and match a legible tracking character to Espressif’s revision table. Magnification can make small text easier to see, but it cannot reveal printing that is covered or removed. Treat the board name and component layout as clues, not proof: Super Mini boards can vary by manufacturer and version.
Inspect the chip package first
Start by locating the chip itself, rather than relying on the board’s “Super Mini” name or nearby components. Clean the package gently if dust obscures the surface, then use bright, angled light to reduce glare. Photograph it close up and in focus; try more than one light angle if the print is faint. These are practical inspection steps, not an Espressif-prescribed test procedure.
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A macro lens or USB digital microscope can help make tiny characters easier to distinguish. They improve visibility only: neither tool can recover a mark that is physically covered, worn away, or removed.
Read the marking fields
Espressif’s chip silk marking guide says markings can provide the chip name, date code, flash code, and tracking information. The arrangement can vary by product. The guide also illustrates the Espressif logo and pin-1 position as parts of the marking convention. See Espressif’s ESP32-C3 chip silk marking guide when comparing a package.
#1 Best Overall
- If external power supply is required, just connect the + level of the external power supply to the position of 5V, GND connects to the negative terminal. (Support 3.3 ~ 6V power supply). Remember that when connecting the external power supply, you cannot access USB, USB and external power supply can only choose one.
- Powerful CPU: ESP32-C3, 32-bit RISC-V single-core processor, running at up to 160 MHz； The ESP32-C3 is a 32-bit RISC-V CPU containing a FPU (Floating Point Unit) for 32-bit single-precision arithmetic with powerful computational capabilities.
- AITRIP the ESP32C3SuperMini is positioned as a high-performance, low-power, cost-effective iot mini development board for low-power iot applications and wireless wearable applications.
- It is equipped with a rich set of interfaces, with 11 digital I/Os that can be used as PWM pins and 4 analogue I/Os that can be used as ADC pins, and it supports four serial interfaces, including UART, I2C and SPI. There is also a small reset button and a bootloader mode button on the board.
- Package: 2PCS ESP32-C3 Development Board +2PCS Expansion board
- Product name: Check whether the visible text identifies the specific chip product or variant, rather than assuming every ESP32-C3 uses an identical configuration.
- Date code: Record it as printed; do not treat it as a revision identifier.
- Flash code: For ESP32-C3 in-package flash, Espressif documents size codes 2, 4, and 8 for 2 MB, 4 MB, and 8 MB. The guide also lists optional temperature codes FH for 105 °C and FN for 85 °C. Which fields appear and how they are arranged can vary by product.
- Tracking-information line: This is the chip-silk field used for the revision mapping below. Read the character in context; do not infer it from an incomplete or ambiguous mark.
Match a legible tracking character to the chip revision
Espressif maps the tracking-line characters below to ESP32-C3 chip revisions. Use the mapping only when the relevant character is visible and legible.
| Tracking character | Chip revision |
|---|---|
| A | v0.0 |
| B | v0.1 |
| C | v0.2 |
| D | v0.3 |
| E | v0.4 |
| H | v1.1 |
The mapping is documented in Espressif’s chip silk marking guide and ESP32-C3 packaging information. It identifies the revision represented by a readable chip marking; it does not establish the identity of the entire board.
Rank #2
- ESP32-C3 is equipped with a single-core 32-bit RISC-V processor, with a four-level pipeline architecture, with a main frequency of up to 160 MHz. ESP32-C3 has 400 KB of built-in SRAM and 384 KB of ROM storage space. ESP32-C3 is the industry-leading Wi-Fi+Bluetooth LE integrated solution
- ESP32 C3 Mini is positioned as a high-performance, low-power, cost-effective iot mini development board for low-power iot applications and wireless wearable applications.
- EPS32-C3 is a cost-effective and low-power dual-mode Wi-Fi and Bluetooth chip. The ESP32-C3 uses a RISC-V processor, a single-core processor with a main frequency of 150 MHz, which integrates Wi-Fi 4 and Bluetooth 5.0 wireless communication.
- ESP32-C3 is a system-level chip (SoC) MCU with very low power consumption and high integration, which integrates 2.4Ghz Wi-Fi and Bluetooth (Bluttooth) low-end dual-mode wireless communication. consumption.
- If external power supply is required, just connect the + level of the external power supply to the position of 5V, GND connects to the negative terminal. (Support 3.3 ~ 6V power supply). Remember that when connecting the external power supply, you cannot access USB, USB and external power supply can only choose one.
Check whether the marking is on a chip, module, or label
A module marking is a different identification route from chip silk. Espressif lists module specification identifiers XX, M4, and MH for revisions v0.3, v0.4, and v1.1, respectively. The absence of one of these identifiers does not rule out an earlier revision: Espressif says modules with earlier revisions are not mass produced. The PW number is not a universal fallback; Espressif says it is provided only for reels packaged in aluminum moisture barrier bags. These distinctions are covered in the ESP32-C3 packaging information.
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Rank #3
- 【High-Performance RISC-V Processor】 This ESP32-C3 super mini development board is built with a 32-bit RISC-V single-core CPU featuring an integrated FPU for 32-bit single-precision floating-point operations
- 【Rich I/O Interfaces in Compact Size】 Offers 11 digital I/Os (can be used as PWM pins) and 4 analog I/Os (can be used as ADC pins). Supports multiple serial interfaces including UART, I2C, and SPI. Its mini form factor (22.52×18mm)
- 【Reliable Wi-Fi & Bluetooth Connectivity】Supports IEEE 802.11 b/g/n Wi-Fi and Bluetooth 5 (LE) protocols for stable wireless communication. The board includes an external antenna to enhance signal reception and transmission, ensuring reliable connections in real-world environments—perfect for wireless ESP32-C3 applications
- 【Low-Power & Cost-Effective Design】 Positioned as a high-performance yet low-power ESP32 super mini board, ideal for battery-powered and low-energy IoT scenarios. The single-sided surface-mount design and compact layout make it easy to integrate into space-constrained projects, offering great value for developers
- 【Complete Kit with 3 Boards】 Package includes 3x ESP32-C3 super mini development boards and 6x pin headers, giving you extra units for multi-device testing or backup. Pre-flashed with ready-to-use firmware, you can start developing immediately. Perfect for hobbyists, educators, and professionals seeking an affordable ESP32-C3 WiFi Bluetooth module
Account for board variation
“ESP32-C3 Super Mini” is a board name, not a guarantee that every unit has identical construction or marking visibility. An independent technical project reference describes subtle differences among boards from different manufacturers, based on the author’s purchased examples; that observation does not establish what every Super Mini board looks like. Use board layout as context only, and compare exact product or variant information where available. Espressif’s ESP32-C3 datasheet documents multiple variants and package details, so the broad family name alone may not specify the exact chip configuration.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What to do when the text remains obscured
- Capture additional close-ups with changed light angles and focus. If the characters are simply too small to distinguish, try magnification.
- Separate what is readable from what is not. Do not guess a tracking character from a partial stroke, or report a revision based only on the board name or component placement.
- Check for a module marking or product label, keeping that evidence distinct from chip silk.
- Ask the board vendor for exact part or variant information, and corroborate it with any readable package or module marking.
If the relevant text is fully covered or absent, the cited Espressif marking and packaging guides do not provide a general technique for reconstructing it. In that case, the revision is not established by the obscured marking.
Quick Recap
Best Value
- ❃❃The ESP32C3 SuperMini is positioned as a high-performance, low-power, cost-effective iot mini development board for low-power iot applications and wireless wearable applications
- ❃❃ESP32-C3 is equipped with a single-core 32-bit RISC-V processor, with a four-level pipeline architecture, with a main frequency of up to 160 MHz. ESP32-C3 has 400 KB of built-in SRAM and 384 KB of ROM storage space. ESP32-C3 is the industry-leading Wi-Fi+Bluetooth LE integrated solution
- ❃❃The EPS32-C3 is a cost-effective and low-power dual-mode Wi-Fi and Bluetooth chip. The ESP32-C3 uses a RISC-V processor, a single-core processor with a main frequency of 150 MHz, which integrates Wi-Fi 4 and Bluetooth 5.0 wireless communication.
- ❃❃【Software development support】C/C++/ESP-IDF-VSCODE/MICROPHYTHON. Second development of Aolt monitoring, video, photography and other applications. Wireless communication solutions
- ❃❃ESP32-C3 is a system-level chip (SoC) MCU with very low power consumption and high integration, which integrates 2.4Ghz Wi-Fi and Bluetooth (Bluttooth) low-end dual-mode wireless communication. consumption.
Rank #4
- [PROTOTYPING COMPONENTS KIT]: Includes 3 units of ESP32-C3 mini development boards and 6 units of 8-pin male headers. These are bare PCB modules designed for soldering and DIY electronic prototyping. Contains NO batteries of any kind.
- [WIRELESS MICROCONTROLLER]: Features a 32-bit single-core processor with 4MB Flash memory. Supports 2.4GHz WiFi and Bluetooth LE. Ideal for developers building wireless logic controls and sensor integration.
- [COMPACT PCB DESIGN]: Ultra-small form factor for embedded systems. Features a modern USB-C interface for firmware flashing and power. Includes multiple GPIO pins and 4 hardware PWM channels for versatile circuit design.
- [TECHNICAL SPECIFICATIONS]: Operating voltage: 3.3V to 6V DC via pins. Features a physical BOOT and RESET button for manual firmware upload mode. No power storage component or battery is included or required for basic operation.
- [FOR MAKERS & HOBBYISTS]: Designed as a core component for WLED lighting, robotic logic, and home automation development. Requires external power source and programming knowledge.
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