CRICKIT - expansion module for Circuit Playground Express

Gravity: UART Infrared CO2 Sensor is a high precision CO2 sensor. It uses the UART interface for communication. It allows to measure CO2 content in the air in the range of 0 ... 50000ppm. DFRobot SEN0220

Module with light intensity sensor TSL2591. Equipped with STEMMA QT connector with I2C interface. Adafruit 1980

Module with a voltage level converter from 5 V to 3.3 V, intended for use in the STEMMA QT/Qwiic system. It has a built-in voltage stabilizer providing 3.3 V power supply with a current of up to 500 mA. Adafruit 5637

Module with 4-channel ADC ADS1015 converter. The system enables analog voltage conversion for both single signals (11-bit resolution) and differential signals (12-bit resolution). I2C communication. SparkFun DEV-15334

Module with Grove connector equipped with AS5600 magnetic encoder with a resolution of 12-bit. It allows for non-contact measurement of the angle of rotation. The module has an analog/PWM output and an I2C interface. Seeed Studio 101020692

Module with NEO-F9P GNSS receiver. It allows you to track signals from several satellite systems, including GPS, GLONASS, Galileo and Beidou, and offers accuracy of up to 10 mm using an RTK base station. It offers five communication ports: USB type C, UART1, UART2 for RTCM, I2C and SPI reception and Qwiic connectors. SparkFun GPS-23288

KAmodM41T82 is a module with the STMicroelectronics M41T82 RTC clock. The chip allows precise timing, and an additional battery connector allows you to maintain the power supply when the main power is turned off. Communication with the module is realized via I2C bus.

Contrast sensor module. It has two integrated operating modes: analog and digital. It has the ability to set the digital mode for color detection. DFRobot SEN0147

Module with a 3-axis analog MMA7361 accelerometer. There are 3 Gravity connectors on the board (for each axis). The operating range of the sensor can be configured using a DIP switch. DFRobot DFR0143