ARM® Cortex®-M4F STM32G4 Microcontroller IC 32-Bit 170MHz 512KB (512K x 8) FLASH 64-LQFP (10x10) The STM32G491RET6 from STMicroelectronics is a high-performance 32-bit microcontroller based on the Arm® Cortex®-M4 core with Floating Point Unit (FPU), designed for advanced embedded applications requiring high computational performance, precise analog processing, and real-time control. It belongs to the STM32G4 series and integrates enhanced analog peripherals, motor-control timers, communication interfaces, security features, and hardware accelerators such as CORDIC and FMAC. The device operates at up to 170 MHz, provides 512 KB Flash memory, and includes 96 KB SRAM, making it suitable for applications such as motor control, digital power conversion, industrial automation, robotics, and embedded control systems. Key Features Core: Arm® Cortex®-M4 32-bit CPU with FPU, DSP instructions, and MPU Maximum CPU Frequency: Up to 170 MHz (up to 213 DMIPS) Memory: 512 KB Flash memory with ECC support 96 KB SRAM with parity checking features Quad-SPI memory interface Operating Voltage: 1.71 V to 3.6 V Package: LQFP-64 Advanced Analog Features: 3 × 12-bit ADCs with high-speed conversion 4 × 12-bit DAC channels 4 × Rail-to-Rail operational amplifiers 4 × Fast analog comparators Internal voltage reference buffer Hardware Accelerators: CORDIC accelerator for trigonometric calculations FMAC (Filter Math Accelerator) for digital filtering applications Timers & Motor Control: Advanced PWM timers for motor-control applications Multiple 16-bit and 32-bit timers Support for encoder and PWM control Communication Interfaces: 2 × FDCAN interfaces 5 × USART/UART 3 × SPI interfaces 3 × I²C interfaces USB 2.0 Full-Speed interface SAI audio interface Security Features: True Random Number Generator (TRNG) CRC calculation unit Unique device ID Debug & Programming: SWD and JTAG debugging support Typical Applications Motor control and BLDC controllers Digital power converters Industrial automation equipment Robotics and motion control Smart sensors and embedded control systems Power management applications #STM32G491RET6 #STM32G4 #STMicroelectronics #ARM_CortexM4 #Microcontroller #MCU #EmbeddedSystems #MotorControl #DigitalPower #IndustrialAutomation #Robotics #IoT #ElectronicsDesign #PCBDesign

This is a generic test point with a circular pad, used to either monitor the state of the circuitry or to inject test signals, and debugging during development. The footprint size is selectable. Standard SMD test point size available: 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 2.0mm, 3.00mm, 4.00mm, 5.00mm, 6.00mm, 7.00mm

USB-to-UART Bridge CP2102N CP2102N-A02-GQFN28R is a highly integrated USB-to-UART bridge controller from Silicon Labs that provides a simple and reliable interface between a USB host and an embedded system using a UART serial port. It eliminates the need for complex USB firmware development by handling all USB protocol functions internally and presenting a standard UART interface to the target device. The device is commonly used in microcontroller programming, debugging, industrial equipment, IoT devices, and USB-to-serial adapters. logging equipment Consumer and portable electronics Function: USB-to-UART Bridge Controller

ESP32-C3-MINI-1-H4 is a compact, low-power wireless module from Espressif Systems built around the ESP32-C3 SoC. It integrates a 32-bit RISC-V processor, 2.4 GHz Wi-Fi, Bluetooth 5 LE, onboard 4 MB flash memory, crystal oscillator, RF matching circuitry, and a PCB antenna in a small surface-mount package. The module is designed for IoT devices, smart home products, industrial automation, wearable electronics, and wireless sensor applications. Key Features 32-bit RISC-V single-core processor with clock speeds up to 160 MHz. 2.4 GHz Wi-Fi 4 (802.11 b/g/n) connectivity. Bluetooth 5 Low Energy (BLE 5.0) support with long-range capability. 4 MB embedded SPI flash memory (H4 variant). 384 KB ROM and 408 KB SRAM for application execution. Integrated PCB antenna for simplified RF design. USB Serial/JTAG controller for programming and debugging without an external USB-to-UART bridge. Multiple peripheral interfaces: UART SPI I²C I²S PWM GPIO ADC USB JTAG Operating voltage range: 3.0 V to 3.6 V. Supports secure boot, flash encryption, and hardware cryptographic acceleration. Compact SMD module suitable for space-constrained designs. Typical Applications Smart home and home automation devices Wireless sensors and data loggers IoT gateways and edge devices Industrial monitoring and control systems Bluetooth beacons Wearable electronics Consumer connected products H4 Variant Note: The ESP32-C3-MINI-1-H4 version includes 4 MB flash memory and supports an extended operating temperature range up to 105°C, making it suitable for more demanding industrial environments. #RF-Transceiver #ESP32 #Module

Female Headers CONN SOCKET 40POS 2.54mm DUAL ROW TH This connector consists of 40 pins total (2 rows × 20 pins) spaced at 2.54 mm pitch. It is widely used in PCB interconnections, embedded systems, Raspberry Pi-style GPIO headers, Arduino expansion boards, and general prototyping applications. It mates with standard female headers or jumper wires. Key Features Pin configuration: 2×20 (40 pins total) Pitch: 2.54 mm (0.1 inch standard) Mounting type: Through-hole (THT) Orientation options: Vertical or right-angle variants Contact material: Typically brass or phosphor bronze Plating: Tin or gold-plated options for improved conductivity Current rating: Commonly 1A–3A per pin (depends on manufacturer) Voltage rating: Typically up to 250V AC/DC (application-dependent) Compatibility: Standard 2.54 mm female headers and jumper cables Use cases: Development boards, GPIO expansion, debugging interfaces, mezzanine connections #CommonPartsLibrary #Connector

Transceiver 433MHz IPEX interface -100dBm 1km SPI SMD,20x14mm RF Transceiver Modules and Modems RoHS The E04-400M16S is based on STMicroelectronics' S2-LPQTR chip as the core, it is an ultra-small size chip wireless transceiver RF module independently developed by Ebyte, working in the 433M/470M frequency band, with a maximum transmission power of 16dBm. Since this module is a SPI pure hardware radio frequency transceiver module, it needs to be driven by MCU. Features  Ultra-small size, only 14x20mm;  The communication distance can reach 1km under ideal conditions;  The maximum transmit power is 16dBm;  The receiving current (RX) is as low as 7mA, and the transmitting current (TX) is as low as 10mA@10dBm;  Low power consumption, suitable for battery-powered applications;  Support 433M/470M frequency band;  Support multiple debugging modes of 2(G)FSK, 4(G)FSK, OOK, ASK;  Support 2.5V～3.6V power supply, power supply greater than 3.3V can guarantee the best performance;  Industrial-grade standard design, supporting long-term use at -40～85℃;  IPEX interface and stamp hole are optional, which is convenient for users to develop and integrate. Application  Smart meeting  Wireless alarm system  Smart door lock  Building automation  Industrial acquisition and control  Intelligent lighting system #E04_400M16S #EBYTE #S2LP #RFModule #WirelessTransceiver #433MHz #470MHz #IoT #IndustrialAutomation #SmartHome #LongRangeWireless #SPI #LowPowerRF #EmbeddedSystems #WirelessCommunication

ESP32-S3-WROOM-1-N8 is a high-performance Wi-Fi and Bluetooth Low Energy (BLE) module from Espressif Systems. It is built around the ESP32-S3 SoC, featuring a dual-core Xtensa LX7 processor, integrated 2.4 GHz Wi-Fi and Bluetooth 5 LE connectivity, 8 MB SPI flash memory, and a PCB antenna. The module is optimized for AIoT, edge computing, human-machine interfaces, smart devices, and industrial IoT applications. Key Features Dual-core Xtensa® LX7 CPU running up to 240 MHz for high-performance embedded applications. 8 MB onboard SPI Flash (N8 variant) for firmware and data storage. 2.4 GHz Wi-Fi (802.11 b/g/n) with data rates up to 150 Mbps. Bluetooth 5 LE support including: Long Range mode 2 Mbps PHY Bluetooth Mesh Extended Advertising AI acceleration support through ESP32-S3 vector instructions for machine learning and signal-processing workloads. USB 1.1 OTG and USB Serial/JTAG integrated, simplifying debugging and USB device applications. Up to 45 GPIOs with extensive peripheral support: SPI I²C I²S UART PWM ADC Touch Sensors TWAI® (CAN-compatible) Camera Interface LCD Interface SDIO Host MCPWM Integrated 40 MHz crystal oscillator, RF matching circuitry, and PCB antenna for reduced external component count. Operating voltage range: 3.0 V to 3.6 V. Compact surface-mount module suitable for space-constrained designs. Typical Applications Smart home and home automation devices HMI displays and touchscreen products Voice recognition and audio processing Edge AI and machine learning applications Industrial IoT gateways and sensors Video streaming and camera systems USB-connected embedded devices Smart agriculture and healthcare equipment N8 specifically indicates 8 MB Flash and no PSRAM, making it a good choice for applications requiring substantial program storage but not large external RAM. #RF-transceiver #Module #ESP32