This is a LoRa based gas leakage detector design featuring a BME680 gas sensor by Bosch Sensortec. It includes a Seeed LoRa module for RF communication and uses an MCU. The power is driven by two non-rechargeable AA batteries with voltage regulation by TPS613221ADBVR IC. The project also incorporates user interaction components such as indicators (LED) and switches. #LoRa #MCU #ReferenceDesign #Module #reusable #module #simple-embedded #seeed #seeed-studio #sublayout

Remote Receiver Sensor 38.0kHz 45m Through Hole This IR receiver series is optimized for long burst remote control systems in different environments. The customer can chose between different IC settings (AGC variants), to find the optimum solution for his application. The higher the AGC, the better noise is suppressed, but the lower the code compatibility. The devices contain a PIN diode and a preamplifier assembled on a lead frame. The epoxy package contains an IR filter. The demodulated output signal can be directly connected to a microprocessor for decoding. These components have not been qualified to automotive specifications. Individual IC settings to reach maximum performance • Immunity against noise (lamps, LCD TV, Wi-Fi) • Low supply current • Photo detector and preamplifier in one package • Supply voltage: 2.0 V to 5.5 V VS1838B #CommonPartsLibrary #Sensor #Transducer #Optical-Sensor #Photo-Detectors #Remote-Receiver #TSOP38238

ARM® Cortex® M3 STM32F1 Microcontroller IC 32-Bit Single-Core 72MHz 64KB (64K x 8) FLASH Medium-density performance line Arm®-based 32-bit MCU with 64 or 128 KB Flash, USB, CAN, 7 timers, 2 ADCs, 9 com. interfaces Arm® 32-bit Cortex®-M3 CPU core – 72 MHz maximum frequency, 1.25 DMIPS/MHz (Dhrystone 2.1) performance at 0 wait state memory access – Single-cycle multiplication and hardware division • Memories – 64 or 128 Kbytes of Flash memory – 20 Kbytes of SRAM • Clock, reset and supply management – 2.0 to 3.6 V application supply and I/Os – POR, PDR, and programmable voltage detector (PVD) – 4 to 16 MHz crystal oscillator – Internal 8 MHz factory-trimmed RC – Internal 40 kHz RC – PLL for CPU clock – 32 kHz oscillator for RTC with calibration • Low-power – Sleep, Stop and Standby modes – VBAT supply for RTC and backup registers • 2x 12-bit, 1 µs A/D converters (up to 16 channels) – Conversion range: 0 to 3.6 V – Dual-sample and hold capability – Temperature sensor • DMA – 7-channel DMA controller – Peripherals supported: timers, ADC, SPIs, I 2Cs and USARTs • Up to 80 fast I/O ports – 26/37/51/80 I/Os, all mappable on 16 external interrupt vectors and almost all 5 V-tolerant Debug mode: – Serial wire debug (SWD) and JTAG interfaces • Seven timers – Three 16-bit timers, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input – 16-bit, motor control PWM timer with dead-time generation and emergency stop – Two watchdog timers (independent and window) – SysTick timer 24-bit downcounter • Up to nine communication interfaces – Up to two I2C interfaces (SMBus/PMBus®) – Up to three USARTs (ISO 7816 interface, LIN, IrDA capability, modem control) – Up to two SPIs (18 Mbit/s) – CAN interface (2.0B Active) – USB 2.0 full-speed interface • CRC calculation unit, 96-bit unique ID • Packages are ECOPACK #commonpartslibrary #integratedcircuit #microcontroller #stm32f1