STM32 Schematics
STM32 is a family of 32-bit microcontrollers developed by STMicroelectronics. These microcontrollers are widely used in a variety of applications, including consumer electronics, automotive, industrial control, and Internet of Things (IoT) devices. One of the key features of STM32 microcontrollers is their high performance and low power consumption, making them suitable for use in battery-powered and energy-sensitive applications. They also have a wide range of peripherals and interfaces, making them highly flexible and adaptable for different use cases. Flux.ai has the world's largest community-driven public library of STM32 microcontrollers, with a wide range of footprints, symbols, datasheets, and simulation models available. This library is a valuable resource for engineers and designers working with STM32 microcontrollers, and helps to accelerate the development process by providing access to pre-tested and verified components.
E32-433T30D
8km UART Through Hole RF Transceiver Modules and Modems RoHS,3.3V~5.2V,-40 ~ 80C The E32-433T30D is based on the Semtech SX1278 LoRa chipset and uses LoRa spread-spectrum modulation to achieve long-distance, highly reliable wireless communication even in noisy environments. It communicates with a microcontroller via UART (serial interface), making it easy to integrate with Arduino, ESP32, STM32, and similar systems. It is commonly used for IoT telemetry, remote control systems, sensor networks, and industrial monitoring, especially where GSM/Wi-Fi is unavailable or impractical. Key Features Frequency range: 410–441 MHz (433 MHz default) RF output power: 21–30 dBm (up to 1 W high-power version) LoRa modulation: High sensitivity and strong anti-interference Communication distance: up to ~8 km (open area, ideal conditions) Interface: UART TTL serial (3.3 V logic level) Sensitivity: around -147 dBm for long-range reception Low data rate support: ~0.3 kbps to 19.2 kbps Half-duplex communication (TX/RX not simultaneous) Configurable modes: normal / wake-up / power-saving / sleep via M0 & M1 pins Compact module size with SMA antenna connector Wide operating temperature: -40 °C to +85 °C Important Notes Requires external microcontroller (MCU) for operation (not standalone). Must not leave M0 and M1 pins floating (must be defined HIGH/LOW or GND). Works best with proper 433 MHz antenna (2–5 dBi recommended). Power supply must be stable (typically 5V with sufficient current capability). For maximum range, line-of-sight + correct antenna height matters more than raw power. Applications Smart agriculture monitoring Remote sensor networks Utility meter reading (water/gas) Industrial telemetry systems Drone/robot communication links Remote control & automation systems #E32_433T30D #Ebyte #LoRa #SX1278 #WirelessModule #IoT #Telemetry #LongRangeCommunication #UART #433MHzLoRa #EmbeddedSystems
6 Uses0 Stars1085
ADS1115 series 16 Bit 860 Samples per Second Analog to Digital Converter (ADC) Evaluation Board Adafruit 1085 ADS1115 Adafruit 4-Channel ADC Breakout based on Texas Instruments ADS1115 (16-bit) or ADS1015 (12-bit) analog-to-digital converter, featuring I2C communication, four single-ended inputs or two differential inputs, programmable gain amplifier (PGA) up to x16, internal voltage reference, programmable comparator, and selectable I2C addresses (0x48–0x4B). Operates from 2.0V to 5.5V and supports interfacing analog sensors with 3.3V and 5V microcontrollers such as Arduino, ESP32, STM32, RP2040, and Raspberry Pi. Search Keywords: Adafruit 4-Channel ADC Breakout, ADS1115 Breakout, ADS1015 Breakout, Adafruit ADS1115, Adafruit ADS1015, I2C ADC Module, 16-bit ADC, 12-bit ADC, 4-channel ADC, differential ADC, programmable gain amplifier, PGA ADC, analog sensor interface, TI ADS1115, TI ADS1015, Raspberry Pi ADC, Arduino ADC module, ESP32 ADC expansion Hashtags: #Adafruit #ADS1115 #ADS1015 #ADCModule #I2CADC #16BitADC #12BitADC #AnalogToDigitalConverter #SensorInterface #DifferentialADC #PGA #Arduino #ESP32 #STM32 #RP2040 #RaspberryPi #DataAcquisition #EmbeddedSystems #AdafruitBreakout
21 Uses0 StarsSTM32WL55JCI6TR
IC RF TxRx + MCU General ISM < 1GHz LoRaWAN 1.0, Sigfox 915MHz 73-UFBGA The STM32WL55JCI6TR is an ultra-low-power wireless microcontroller developed by STMicroelectronics. It integrates a high-performance Arm Cortex-M4 core with a secondary Arm Cortex-M0+ core and a sub-GHz radio transceiver within a single package. The device is designed for long-range wireless communication, industrial automation, smart metering, environmental monitoring, asset tracking, and Internet of Things applications. Its highly integrated architecture reduces external component count while providing secure, energy-efficient operation suitable for battery-powered and embedded systems. #STM32WL55JCI6TR #STM32WL #STM32 #STMicroelectronics #Microcontroller #WirelessMCU #LoRa #SubGHz #IoT #EmbeddedSystems #IndustrialAutomation #SmartMetering #LowPowerDesign #WirelessCommunication #RemoteMonitoring
0 Uses0 StarsSTM32L031K6T6TR
ST Microelectronics STM32L031K6T6TR LQFP-32_L7.0-W7.0-P0.80-LS9.0-BL LCSC Part Number: C2054289 JLCPCB Part Class: Extended Part Manufactured by ST(意法半导体) STMicroelectronics STM32L031x4/6 ultra-low-power 32-bit ARM Cortex-M0+ microcontroller family, operating up to 32MHz, with up to 32KB Flash memory, 1KB EEPROM and 8KB SRAM. Features 12-bit ADC with hardware oversampling, ultra-low-power comparators, timers, RTC, watchdogs, SysTick, I2C, SPI, USART and low-power UART interfaces. Supports multiple internal/external clock sources, low-power modes, backup registers and operation from 1.8V to 3.6V supply, with power-down operation down to 1.65V. Suitable for low-power embedded, battery-powered, sensor, industrial and portable applications. Search Keywords: STM32L031x4, STM32L031x6, STM32L031, STMicroelectronics STM32L031, STM32L031 MCU, STM32L0 microcontroller, ARM Cortex-M0+ MCU, ultra low power STM32, 32MHz microcontroller, STM32 32KB Flash, STM32 EEPROM MCU, STM32L031 I2C SPI USART, STM32L031 low power UART, STM32L031 ADC, STM32L031 datasheet Hashtags: #STM32L031 #STM32L031x4 #STM32L031x6 #STMicroelectronics #STM32L0 #CortexM0Plus #ARMMicrocontroller #UltraLowPowerMCU #32MHzMCU #32KBFlash #EEPROMMCU #I2CMCU #SPIMCU #USARTMCU #LowPowerUART #ADC12bit
39 Uses0 StarsSTM32L432KCU6
ST Microelectronics STM32L432KCU6 UFQFPN-32_L5.0-W5.0-P0.50-TL-EP3.5 LCSC Part Number: C1337280 JLCPCB Part Class: Extended Part Manufactured by ST(意法半导体) STMicroelectronics STM32L432KC ultra-low-power 32-bit ARM Cortex-M4 microcontroller with FPU running up to 80MHz, featuring 256KB Flash memory, 64KB SRAM, USB 2.0 Full-Speed device support, Quad-SPI interface, RTC with calendar and alarms, true random number generator (TRNG), DMA controller, CAN 2.0B, UART, LPUART, SPI, I2C, SAI audio interface, 12-bit 5MSPS ADC, dual 12-bit DACs, operational amplifier with PGA, comparators, capacitive sensing channels, advanced timers and ultra-low-power modes. Operates from 1.71V to 3.6V and is optimized for battery-powered, industrial, medical, IoT and portable embedded applications. Search Keywords: STM32L432KC, STM32L432KCU6, STM32L432KCU6TR, STM32L432, STM32L4 series, STM32 Cortex-M4 MCU, STM32 low power microcontroller, STM32 256KB Flash 64KB SRAM, STM32 USB FS MCU, STM32 CAN MCU, STM32 Quad SPI MCU, STM32L432 datasheet, STM32L432 development board, Nucleo-L432KC, ARM Cortex-M4 FPU Hashtags: #STM32L432KC #STM32L432KCU6 #STM32L432 #STM32L4 #STMicroelectronics #CortexM4 #ARMMicrocontroller #LowPowerMCU #EmbeddedSystems #USBFS #CANBus #QuadSPI #ADC12bit #DAC12bit #RTC #TRNG #IoTMCU #IndustrialMCU #MedicalElectronics #NucleoL432KC
42 Uses0 StarsAMS1117-3.3RG
The AMS1117-3.3RG is a fixed-output, low-dropout (LDO) linear voltage regulator that provides a regulated 3.3 V output from a higher input voltage. It is capable of delivering up to 1 A output current and is commonly used in microcontroller, communication, and embedded-system power supplies where a stable 3.3 V rail is required. The device includes built-in protection features such as current limiting and thermal shutdown for improved reliability. Key Features Fixed 3.3 V output voltage Supports up to 1 A output current Low dropout voltage, typically around 1.2 V and up to 1.3 V at 1 A load Input voltage capability up to 12 V (some manufacturer variants specify higher absolute maximum ratings) Good line and load regulation Built-in current limiting protection Built-in thermal shutdown protection Available in SOT-223 surface-mount package Suitable for post-regulation of switching power supplies and general 3.3 V power conversion applications Typical Applications ESP32, STM32, and other microcontroller-based systems Embedded and IoT devices Communication modules LCD monitors and display circuits Battery-powered equipment Post-regulation for DC/DC converters Motherboards and expansion cards #CommonPartsLibrary #IntegratedCircuit #PowerManagement #LDO
140 Uses0 StarsSTM32 PSRAM Audio Synth Controller
Compact ARM Cortex STM32 music synth controller modeled after Daisy Seed, with external PSRAM, PCM3060 audio codec, three potentiometers, eight LEDs with resistors, two buttons, audio jack, rounded-rectangle PCB, mounting holes, and row-aligned controls.
0 Uses0 StarsPet Tracker Device 2YhJ
This is a Pet Tracker Reference Design based on STM32L4. Tracker connects with network by SIM800L module connected to the STM. Also MCU connected to the GPS by uart and send data to server #STM32 #GPS #G4 #G3 #LTE #IoT #Tracker #smartHomeDevices #referenceDesign #edge-computing #edgeComputing #stm #template #referenceDesign
0 Uses0 StarsFL2500283Z
25 MHz ±30ppm Crystal 20pF 50 Ohms 4-SMD, No Lead The FL2500283Z is a 25 MHz surface-mount quartz crystal manufactured by Diodes Incorporated, part of the FL series (SaRonix-eCera™). It is designed for use as a stable clock reference in digital circuits such as microcontrollers, communication modules, and embedded systems. This crystal uses an AT-cut resonator inside a compact 3.2 mm × 2.5 mm (3225) ceramic package, making it suitable for high-density PCB designs and modern electronics. Key Features Standard Frequency 25 MHz fundamental mode crystal Compact SMD Package 3.2 × 2.5 mm (3225), 4-pad configuration Height ~0.68–0.75 mm AT-Cut Quartz Technology Provides good frequency stability and low drift Frequency Stability & Tolerance Typical: ±10 to ±30 ppm Load Capacitance Typically 20 pF Low ESR Around 50–60 Ω, suitable for MCU oscillator circuits Wide Operating Temperature Common range: -20°C to +70°C (some variants up to -40°C to +125°C) Surface-Mount Compatibility Ideal for automated assembly and reflow soldering RoHS / Lead-Free Environmentally compliant design Typical Applications Microcontroller clock (STM32, ESP32, AVR, etc.) Communication modules (Wi-Fi, Ethernet, RF) Embedded systems Consumer electronics Industrial control boards #Crystal #Oscillator #Resonator #SaRonix-eCera™ FL
76 Uses0 StarsCX3225SB16000D0GZJC1
16 MHz ±15ppm Crystal 8pF 60 Ohms 4-SMD, No Lead The CX3225SB16000D0GZJC1, manufactured by Kyocera AVX, is a 16.000 MHz crystal oscillator element designed to provide precise frequency reference for microcontrollers, communication ICs, and digital systems. It belongs to the CX3225SB series, known for compact size and stable frequency performance. Key Characteristics Type: Quartz crystal (passive frequency component) Frequency: 16 MHz Load Capacitance: 8 pF Frequency Stability: ±15 ppm Frequency Tolerance: ±15 ppm Operating Mode: Fundamental ESR (Equivalent Series Resistance): ~60–80 Ω Mechanical Details Package: 4-SMD, no-lead (surface mount) Size: 3.2 mm × 2.5 mm (3225 package) Height: ~0.6 mm (low profile) Operating Conditions Temperature Range: −25°C to +85°C Mounting Type: Surface mount (SMT) Function (Simple Explanation) This component: Generates a stable clock signal (16 MHz) Acts as the timing reference for MCUs, processors, or RF modules Works together with internal oscillator circuits inside ICs Microcontroller clock sources (e.g., ESP32, STM32, AVR) Communication modules Embedded systems Consumer electronics IoT devices #CommonPartsLibrary #Crystal #Oscillator #resonator
61 Uses0 Stars
