Bluetooth, WiFi 802.11b/g/n, Bluetooth v5.0 Transceiver Module 2.4GHz PCB Trace Surface Mount The ESP32-S3-WROOM-1-N16R8 is a high-performance Wi-Fi + Bluetooth Low Energy (BLE) module developed by Espressif Systems. It is built around the ESP32-S3 SoC, featuring a dual-core Xtensa LX7 32-bit processor running up to 240 MHz. This module integrates 16 MB Flash memory and 8 MB PSRAM, making it suitable for memory-intensive applications such as AI, image processing, and advanced IoT systems. It also includes an onboard PCB trace antenna, RF circuitry, crystal oscillator, and power management components—allowing designers to quickly integrate wireless connectivity into compact embedded designs. Key Features Processing & Memory Dual-core Xtensa LX7 CPU, up to 240 MHz 384 KB ROM, 512 KB SRAM + 16 KB RTC SRAM 16 MB Flash (Quad SPI) 8 MB PSRAM (Octal/Quad SPI) Connectivity 2.4 GHz Wi-Fi (802.11 b/g/n) Bluetooth 5 (LE) + Mesh support Integrated PCB antenna Peripherals & Interfaces Up to 36 GPIOs Interfaces: UART, SPI, I2C, I2S, PWM, ADC, USB OTG Built-in USB Serial/JTAG support Supports touch sensors, timers, watchdogs, CAN (TWAI) Electrical Characteristics Supply voltage: 3.0 V – 3.6 V TX power: up to ~20.5 dBm RX sensitivity: ~-103.5 dBm Operating temp: −40 °C to +65 °C (typical) Advanced Capabilities Optimized for AI acceleration (vector instructions) Suitable for voice recognition, image processing, and edge AI Low-power modes for battery-operated devices| Typical Applications IoT devices and sensor hubs Smart home & home automation AIoT (voice/image recognition) Industrial automation & monitoring Wearables and health devices USB-connected embedded systems #Module #RF-Transceiver #ESP32-S3

Bluetooth, WiFi 802.11b/g/n, Bluetooth v5.0 Transceiver Module 2.4GHz PCB Trace Surface Mount The ESP32-S3-WROOM-2-N32R16V is a powerful dual-core microcontroller module that integrates wireless connectivity, large memory, and hardware acceleration for AI and signal processing tasks. It is particularly suited for applications requiring edge AI, voice recognition, and high-speed data processing, while still maintaining low power consumption. Dual-core Xtensa LX7 CPU Up to 240 MHz Includes vector instructions for AI and DSP workloads Wi-Fi 2.4 GHz (802.11 b/g/n) Bluetooth 5 (LE) N32 → 32 MB external Flash R16 → 16 MB PSRAM Built for memory-intensive applications #commonpartslibrary #transceiver #wireless #rf

20 Hz ~ 20 kHz Analog Microphone Electret Condenser 3 V ~ 10 V Omnidirectional (-44dB ±2dB) PC Pins JLI 140A HD microphone microphone capsule The CMA-4544PF-W is an electret condenser microphone designed for compact audio capture applications. It features high sensitivity, low noise characteristics, and stable frequency response, making it suitable for voice recording, communication devices, and embedded audio systems. The device integrates a permanently charged electret diaphragm with a built-in FET preamplifier, enabling reliable signal output with minimal external circuitry. Key Features Electret condenser microphone element High sensitivity and signal-to-noise ratio Omnidirectional pickup pattern Compact, low-profile package Built-in FET impedance converter Stable performance over temperature range RoHS compliant Electrical Characteristics Operating Voltage: typically 2.0 V (range: 1.5 V to 10 V) Current Consumption: typically 0.5 mA Sensitivity: typically -44 dB ±3 dB (at 1 kHz, 0 dB = 1 V/Pa) Signal-to-Noise Ratio: typically 60 dB Output Impedance: typically 2.2 kΩ Frequency Response: 20 Hz to 16 kHz Acoustic Characteristics Directivity: Omnidirectional Maximum Sound Pressure Level: typically 110 dB SPL Equivalent Noise Level: typically 34 dB SPL Mechanical Characteristics Package Type: Through-hole cylindrical metal can Dimensions: approximately 4.5 mm diameter × 4.4 mm height Mounting Type: PCB through-hole Terminal Configuration: Two-pin (signal and ground) Environmental Specifications Operating Temperature Range: -20°C to +70°C Storage Temperature Range: -40°C to +85°C Applications Voice recording devices Mobile and handheld electronics Intercom and communication systems Embedded audio input modules IoT and consumer electronics Pin Configuration Pin 1: Output (Vout) Pin 2: Ground (GND / Case) Compliance RoHS compliant Suitable for general consumer electronics use #commonpartslibrary #audio #microphone #analog #condenser

20 Hz ~ 20 kHz Digital, PDM Microphone MEMS (Silicon) 1.62 V ~ 3.6 V Omnidirectional (-36dB ±1dB @ 94dB SPL) Solder Pads The IM69D130V01XTSA1 is a high-performance digital MEMS microphone designed for applications requiring compact size, low power consumption, and reliable acoustic performance. The device integrates a MEMS sensing element with signal conditioning and digital output functionality within a surface-mount package suitable for automated assembly processes. The component is intended for use in voice-enabled systems, consumer electronics, industrial equipment, communication devices, and embedded audio applications where consistent sensitivity, low noise operation, and environmental robustness are required. The microphone supports digital audio interfacing and is optimized for far-field voice capture and speech recognition environments. The device construction is designed to provide stable operation under standard environmental and mechanical conditions. It is compatible with modern PCB manufacturing processes and supports integration into space-constrained electronic assemblies. Electrical and acoustic characteristics are engineered to maintain reliable performance across varying operating conditions. The component complies with standard electronic manufacturing and handling requirements for moisture sensitivity, electrostatic discharge protection, and reflow soldering compatibility. Proper PCB layout, grounding practices, and acoustic port alignment are recommended to achieve optimal system-level performance. #CommonPartsLibrary #Audio #MEMS #Microphone

The IA611 SmartMic is an "always-on" Audio Processor featuring Voice Wake and Voice ID keyword detector, a two-second buffer', and Knowles' proven high performance acoustic SiSonic™ MEMS microphone technology in a single, miniature, top-port package. The IA611 offers flexibility by supporting the most relevant audio and data interfaces. Its integrated programmable DSP with 248 kBytes of RAM is available for customer and 3rd party algorithms, enabling unlimited creativity. The solution pushes the system performance to ultra-low power with its custom core design, and accelerates time to market with its highly integrated combination of hardware, software, and firmware.

The DRA818V is a compact, high-performance VHF (Very High Frequency) voice transceiver module based on the RDA1846 radio frequency integrated circuit (RFIC). It is designed for use in walkie-talkie and amateur radio systems within the 134-174 MHz range and communicates with a host microcontroller via a standard UART interface. The module supports features like CTCSS/CDCSS codes, adjustable volume and squelch, and is configurable through AT commands for transmit/receive frequencies and other parameters.