ESP32-C5 RISC-V IoT MCU supports dual-band WiFi 6, Bluetooth 5.0 LE

Espressif Systems ESP32-C5 is an upcoming wireless RISC-V microcontroller for IoT applications that supports dual-band (2.4 & 5.0 GHz) WiFi 6 connectivity as well as Bluetooth 5.0 LE.

It is the first dual-band processor from Espressif, as while the Shanghai-based company previously announced the ESP32-C6 WiFi 6 and Bluetooth 5 LE RISC-V SoC last year, it only supports 2.4 GHz frequency. Note it’s not the first dual-band WiFi 6 IoT chip on the market as NXP introduced the IW612 Wi-Fi 6, Bluetooth 5.2, 802.15.4 tri-radio solution last January, but ESP32-C5 should target different use cases.

ESP32-C5

ESP32-C5 preliminary specifications:

  • CPU – Single-core 32-bit RISC-V processor @ up to 240 MHz
  • Memory – 400KB SRAM on-chip
  • Storage – 384KB of ROM on-chip, support for external flash
  • Connectivity
    • Dual-band 802.11ax WiFi 6 in the 2.4GHz and 5 GHz bands, with 802.11b/g/n WiFi 4 standard support for backward compatibility
      • 20MHz bandwidth for the 802.11ax mode
      • 20/40MHz bandwidth for the 802.11b/g/n mode
      • OFDMA (Orthogonal Frequency Division Multiple Access) mechanism for both uplink and downlink
      • MU-MIMO capability for downlink
      • Target Wake Time (TWT) support allows devices to sleep for an extended time-period (important for battery life)
    • Bluetooth 5.0 Low Energy (LE )
  • I/Os
    • Over 20 programmable GPIOs
    • SPI, UART, ADC
    • SDIO 2.0 Slave interface
  • Misc – Temperature sensor, RTC

Support for 5 GHz WiFi provides several benefits to IoT devices. First OFDMA and MU-MIMO enable higher efficiency and low latency in congested wireless environments, while also improving connectivity in high-density environments. Then TWT support will allow the development of battery-operated ESP32-C5 devices that can last for years on a single charge. Finally, the higher throughput (no PHY rate numbers provided yet) will enable new applications such as live-streaming devices, Wi-Fi dongles, IP cameras, etc…

Espressif will offer continuity in terms of software as the ESP32-C5 WiSoC will be supported by the same Espressif’s open-source FreeRTOS-based ESP-IDF used by other ESP32 and ESP8266 devices. It will also be possible to use the ESP32-C5 as a wireless co-processor with an external host through either the ESP-AT (AT command set) or ESP-Hosted (802.11 interface for Linux hosts) SDKs.

The company does not provide availability information for the new dual-band chip in the press release but invites interested companies to contact them.

Share this:

Support CNX Software! Donate via PayPal or cryptocurrencies, become a Patron on Patreon, or buy review samples

ROCK Pi 4C Plus
Subscribe
Notify of
guest
The comment form collects your name, email and content to allow us keep track of the comments placed on the website. Please read and accept our website Terms and Privacy Policy to post a comment.
7 Comments
oldest
newest
Eric Wertz
Eric Wertz
2 days ago

Really… no I2C?

Jeroen
2 days ago

Lets hope they just took it for granted and didn’t mention it, a mcu whitout I2C would indeed we silly

Willy
Willy
1 day ago

The previous ESP32 and ESP8266 don’t have I2C either, that’s done in software using the GPIO of your choice, and that didn’t prevent them from ruling the IoT world!

itchy n scratchy
itchy n scratchy
1 day ago

It has already been bitbanged with tony pics, so should be a reason to cry

abcde
abcde
2 days ago

What happened to Bluetooth Classic?

itchy n scratchy
itchy n scratchy
1 day ago

I’d say it’s about to die

M V
1 day ago

Does it support 802.11ac too, or I need to buy 802.11ax AP?

Advertisement