Components

Microchip 10-bit Analog-to-Digital Converter (ADC) IC featuring 8 single-ended input channels, 200 ksps sampling rate, and 4-wire SPI interface, universally used for reading analog sensors on Raspberry Pi.

Microchip 12-bit Analog-to-Digital Converter (ADC) IC featuring 8 single-ended or 4 pseudo-differential input channels, 100 ksps sampling rate, and 4-wire SPI interface.

Microchip high-accuracy 16-bit digital temperature sensor with ±0.25°C typical accuracy from -40°C to +125°C, user-selectable resolution (0.0625°C default), alert output, and I2C output (0x18).

Winsen Electronics NDIR infrared carbon dioxide sensor module providing calibrated CO2 concentration measurements (400 to 5,000 ppm) over UART serial and PWM outputs.

Melexis non-contact infrared thermometer IC integrating a thermopile detector, low-noise amplifier, 17-bit ADC, and DSP for accurate ambient and object temperature measurement via SMBus / I2C.

Melexis 768-pixel (32x24) Far-Infrared (FIR) thermopile thermal imaging array camera sensor measuring non-contact object temperatures from -40°C to +300°C over I2C (0x33).

NXP 12-channel capacitive touch sensing controller featuring I2C interface, independent baseline autocalibration, 8 LED driver GPIO pins, and programmable touch/release thresholds for touch keypads.

InvenSense 6-axis MotionTracking IC combining a 3-axis MEMS gyroscope, 3-axis MEMS accelerometer, and an onboard Digital Motion Processor (DMP) communicating over I2C.

InvenSense / TDK 9-axis MotionTracking device combining a 3-axis gyroscope, 3-axis accelerometer, and AK8963 3-axis digital compass / magnetometer in a single QFN package with I2C and SPI interfaces.

Winsen Electronics tin-dioxide (SnO2) semiconductor gas sensor sensitive to NH3, NOx, alcohol, benzene, smoke, and CO2, providing analog output and digital threshold comparator output.

Winsen Electronics tin-dioxide (SnO2) semiconductor gas sensor module sensitive to LPG, propane, methane, hydrogen, alcohol, and smoke, providing analog concentration output and digital comparator threshold output.

Winsen tin-dioxide (SnO2) semiconductor alcohol gas sensor module providing high sensitivity to ethanol vapor (0.05 mg/L to 10 mg/L) with dual analog voltage and digital threshold outputs for DIY breathalyzers.

Winsen Electronics semiconductor carbon monoxide (CO) sensor module utilizing high-low temperature cycling (5V / 1.4V) to detect toxic CO gas concentrations from 20 to 2000 ppm.

Advancer Technologies / SparkFun surface electromyography (EMG) muscle sensor that measures filtered, rectified electrical activity of contracting muscles, outputting raw EMG waveforms and analog envelope signals.

Nuvoton NAU7802 precision 24-bit Sigma-Delta ADC with low-noise PGA (1x to 128x), dual differential input channels, onboard LDO voltage regulator, and I2C output (0x2A) for weigh scales.

OmniVision 1/4" 2-megapixel UXGA (1600x1200) CMOS image sensor featuring an integrated hardware JPEG compression engine and parallel DVP interface, universally bundled with ESP32-CAM boards.

GlobalTop / Adafruit 99-channel MTK3333 GNSS receiver module featuring an integrated ceramic patch antenna, simultaneous GPS/GLONASS tracking, NMEA-0183 output over I2C (0x10) or UART.

NXP single-chip low-power 8-bit CMOS data acquisition device featuring 4 analog inputs, 1 analog output (DAC), and I2C bus interface, commonly sold as a beginner breakout board with onboard thermistor, LDR, and potentiometer.

Plantower digital universal particle concentration sensor using laser scattering to measure real-time PM1.0, PM2.5, and PM10 mass concentration (µg/m³) over a UART serial interface.

Peacefair single-phase AC energy monitoring module featuring optocoupled TTL UART output, measuring AC voltage (80-260V), current (0-100A via current transformer), active power, energy consumption, frequency, and power factor.

QST Corporation multi-chip 3-axis magnetic sensor IC providing 16-bit high-resolution magnetic field measurements over I2C, designed as a modern replacement for the HMC5883L.

Generic doppler radar microwave motion sensor module operating at 3.18 GHz, capable of detecting movement through walls, glass, and plastic obstacles with a 360-degree detection angle.

Sensirion dual-channel NDIR (Non-Dispersive Infrared) optical gas sensor providing calibrated true CO2 concentration (400 to 10,000 ppm) alongside integrated temperature and humidity sensors.

Sensirion ultra-compact (101 mm³) photoacoustic NDIR CO2 sensor module delivering high-precision carbon dioxide readings (up to 40,000 ppm on SCD41) with temperature and humidity outputs.