Espressif Systems Releases ESP32-C61 A Wi-Fi 6 and Bluetooth 5 SoC for Superior IoT Performance

Espressif Systems Releases ESP32-C61 A Wi-Fi 6 and Bluetooth 5 SoC for Superior IoT Performance


Espressif Systems recently launched the ESP32-C61, an advanced System-on-Chip (SoC) with Wi-Fi 6 and Bluetooth 5 (LE). Building on its predecessors like ESP32-C2 and ESP32-C3, it shares similar specifications but adds support for BLE Mesh 1.1 protocol and faster Quad SPI PSRAM, operating at speeds up to 120MHz.

The ESP32-C61, a 32-bit single-core RISC-V microcontroller, operates at 160 MHz and features 320KB of SRAM, 256KB ROM, and compatibility with Quad SPI flash. It also supports Quad SPI PSRAM, providing up to 120MHz speed, which helps developers overcome memory limitations and allows for scalable future developments.

The device supports the latest Wi-Fi 6 standards (802.11ax, 802.11b/g/n) and Bluetooth 5 (LE) for long-range connectivity. It includes advanced features like Target Wake Time (TWT) for power saving in 802.11ax mode, and both OFDMA and MU-MIMO technologies for efficient, high-quality connections with low latency.

Technical Specification of ESP32-C61:

  • Core Processor: 32-bit single-core RISC-V microcontroller, clockable up to 160 MHz.
  • Memory:
    • 320KB on-chip SRAM.
    • 256KB ROM.
    • Quad SPI flash compatibility.
    • Quad SPI PSRAM support, up to 120MHz.
  • Connectivity:
    • Wi-Fi 6 (802.11ax mode at 20MHz bandwidth, 802.11b/g/n mode at 20/40MHz bandwidth).
    • Bluetooth 5 (LE) with long-range operation and high throughput of 2 Mbps.
    • BLE Mesh 1.1 protocol support.
  • Power Management: Target Wake Time function for ultra-low power applications.
  • Security:
    • Secure Boot.
    • Flash and PSRAM Encryption.
    • Cryptographic hardware acceleration.
    • ECDSA Digital Signature Peripheral for private key protection.
    • Trusted Execution Environment (TEE) with Access Permission Management hardware block and Physical Memory Protection.
  • Peripherals:
    • Standard microcontroller peripherals: I2C, I2S, SPI, UART, LED-PWM, ADC, Timers, DMA.
    • Specialized peripherals: Event Task Matrix, Zero-crossing comparator.
  • Development Compatibility:
    • IoT Development Framework (ESP-IDF).
    • ESP-Matter-SDK for Matter open-source protocol compatibility.
    • ESP-Hosted and ESP-AT firmware options for communication co-processing with external hosts.

This device will also feature a bunch of security features like secure boot, flash and PSRAM encryption, and cryptographic accelerators. Additionally, Espresify talks about a Trusted Execution Environment with Access Permission Management and Physical Memory Protection.

For more details on the ESP32-C61, you can check out the official product announcement from Espressif Systems. If you have specific queries or need further assistance, feel free to reach out to Espressif’s customer support team for personalized help and information.

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About Debashis Das

Tech Content Creator | Hardware Design Engineer | IoT Enthusiast | Digital Storyteller | Video Creator | From crafting digital dialogues at Semicon Media to orchestrating online engagement at, my journey is about making tech talk interesting and accessible. In the quiet corners of the day, I advocate for easier tech education, one tutorial at a time. Let's connect and keep the digital dialogue going!

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