The Argon ONE M.2 Case ups the ante by providing two full-sized HDMI ports, Power Management Modes that allows for automatic booting, Built-in IR support with streamlined options for configuration and Integrated M.2 SATA SSD support through the USB 3 Ports of the Raspberry Pi 4.
More information:
https://www.argon40.com/argon-one-m-2-case-for-raspberry-pi-4.html
RPLIDAR A1 is a low cost 360-degree 2D laser scanner (LIDAR) solution developed by SLAMTEC. The system can perform a 360degree scan within a 6meter range. The produced 2D point cloud data can be used in mapping, localization, and object/environment modelling.
More information:
https://www.seeedstudio.com/RPLiDAR-A1M8-360-Degree-Laser-Scanner-Kit-12M-Range.html
The AM2302 Humidity Capacitance Digital Temperature and Humidity Module is a temperature and humidity composite sensor with a calibrated digital signal output.
More information:
https://www.seeedstudio.com/DIP-Tem-Hum-Sensor-4P-2-54-p-4193.html
Co-design by Seeed and MTK High performance board for wearable and IoT Rich – Features Rich – compatibility Strong extensibility, similar pinout to Arduino.
More information:
https://www.seeedstudio.com/LinkIt-ONE-p-2017.html
The Slamtec Mapper has two models with a detection range of 20m and 40m. It can easily map for home scenes or commercial, light industrial scenes. In the handheld mode, the built-in 9 degrees freedom inertial navigation system of the M1M1 can eliminate the bumps and shake caused by walking and exert super high map construction performance.
More information:
https://www.seeedstudio.com/Slamtec-Mapper-M1M1-ToF-Laser-Screen-Kit-20M-Range-p-4130.html
This digital NDIR CO2 concentration sensor supports Modbus (Modbus-RTU/Modbus-ASCII) RS485 and SDI-12 communication protocols, built-in calibration functionality, and compact in size, making it widely applicable in greenhouses, cities, poultry farms, transportation stations, and other application scenarios where CO2 level is needed.
More information:
https://www.seeedstudio.com/SOLO-CO2-5000-A1-p-4757.html
The ChromaTab is a tiny, Arduino compatible, a board that can be soldered directly onto a WS2812B intelligent LED strip.
More information:
https://www.seeedstudio.com/ChromaTab-p-2627.html
It is designed specifically for the Raspberry Pi, which has an optional three-color RGB backlight, you can choose according to different situations different colors, to meet the different needs of users.
More information:
https://www.seeedstudio.com/Raspberry-Pi-RGB1602-LCD-Module.html
Great, small OLED display, which can be easily connected to the Arduino or Raspberry Pi using I2C. With a resolution of 128 x 64 pixels, texts or small graphics can be displayed very sharply. The text color of the display is white.
More information:
https://www.ebay.com/itm/252794945535
The CJMCU-811 is an ultra-low-power digital gas sensor that integrates a CCS801 sensor and an 8-bit MCU with an analog-to-digital converter (ADC) to detect indoor air quality, including carbon monoxide (CO) and a wide range of Volatile Organic Compounds (VOCs).
More information:
https://www.banggood.com/CJMCU-811-CCS811-Carbon-Monoxide-CO-VOCs-Air-Quality-Digital-Gas-Sensor-p-1157216.html