The ESP32-C6-WROOM-1U-N4 from Espressif Systems is a highly integrated wireless communication module based on a 32-bit RISC-V single-core processor. It supports advanced connectivity including Wi-Fi 6 (802.11ax), Bluetooth 5 LE, Zigbee, and Thread, making it suitable for next-generation IoT applications. The module operates up to 160 MHz and integrates onboard SPI flash, SRAM, and a rich set of peripherals. The “1U” variant features an external antenna connector for improved RF performance and flexible antenna design. With low power consumption, high integration, and multi-protocol support, it is ideal for smart home, industrial automation, and wireless embedded systems.
Specifications:
CPU Architecture: 32-bit RISC-V with up to 160 MHz clock frequency
Wi-Fi: IEEE 802.11ax (Wi-Fi 6), backward compatible with 802.11 b/g/n, up to 150 Mbps
Wi-Fi Features: OFDMA, MU-MIMO, Beamforming, Target Wake Time (TWT), spatial reuse
Bluetooth: Bluetooth 5.3 Low Energy with mesh support and multiple advertising sets
IEEE 802.15.4: Supports Zigbee 3.0 and Thread 1.3 protocol stack
RF Frequency Range: 2.4 GHz band (2412 MHz to 2484 MHz)
RAM: 512 KB high-performance SRAM + 16 KB low-power SRAM
ROM: 320 KB internal ROM
Flash Support: External SPI flash up to 4 MB
GPIO: Up to 23 programmable GPIOs with multiple alternate functions
ADC: Integrated SAR ADC with multiple input channels
Interfaces: UART, SPI, I2C, I2S, USB Serial/JTAG, SDIO, TWAI (CAN), RMT
PWM: LED PWM and motor control PWM (MCPWM) support
Communication Speed: UART up to 5 Mbps supported
Integrated Components: 40 MHz crystal oscillator, RF matching, onboard flash
Power Modes: Active, Modem-sleep, Low-power modes for energy efficiency
Antenna: External antenna support for extended range and better RF tuning
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