آر اف (فرکانس رادیویی) و بی‌سیم ماژول‌ فرستنده‌گیرنده و مودم آر اف

Product Attributes

Introduction

Compact module supporting 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5, featuring the ESP8684 series chip with a RISC-V single-core processor, 14 GPIOs, and an onboard PCB antenna or external antenna connector. The ESP8684 chip series is a sub-series of the ESP32-C2 family, which currently consists solely of the ESP8684 chip series.

Features

• Integrates ESP8684H2X or ESP8684H4X chip, RISC-V 32-bit single-core microprocessor, clock speed up to 120 MHz
• 576 KB ROM
• 272 KB SRAM (including 16 KB dedicated to cache)
• In-package flash (varies by model)
• Flash controller with cache mechanism
• Supports flash In-Circuit Programming (ICP)
• Wi-Fi: IEEE 802.11 b/g/n, operating channel center frequency range: 2412 ~ 2484 MHz, 20 MHz bandwidth in 2.4 GHz band, 1T1R mode, data rate up to 72.2 Mbps; supports WMM, frame aggregation (TX/RX A-MPDU, TX/RX A-MSDU), Immediate Block ACK, Fragmentation and defragmentation, Transmit opportunity (TXOP), automatic Beacon monitoring (hardware TSF), 3 × virtual Wi-Fi interfaces; supports Infrastructure BSS Station mode, SoftAP mode, Station + SoftAP mode, and promiscuous mode
• Bluetooth: Bluetooth LE, Bluetooth 5.3 certified, high-power mode (20 dBm), data rates: 125 kbps, 500 kbps, 1 Mbps, 2 Mbps; supports Advertising Extensions, Multiple Advertisement Sets, Channel Selection Algorithm #2; Wi-Fi and Bluetooth coexistence with shared antenna
• 14 GPIOs total (2 strapping pins); peripherals include GPIO, SPI, UART, I2C, LED PWM controller, general DMA controller, SAR ADC, temperature sensor, general-purpose timer, system timer, and watchdog timer
• 26 MHz integrated crystal oscillator
• ESP8684-MINI-1: onboard PCB antenna; ESP8684-MINI-1U: external antenna via connector
• Operating/supply voltage: 3.0 ~ 3.6 V
• Operating temperature: -40 ~ 105 °C
• Environmental certification: RoHS/REACH

Applications

• Smart Home
• Industrial Automation
• Healthcare
• Consumer Electronics
• Smart Agriculture
• POS Terminals
• Service Robots
• General-purpose Low-power IoT Sensor Hub
• General-purpose Low-power IoT Data Logger