The unPhone is an open-source IoT development platform powered by the ESP32S3 microcontroller. It features integrated LoRa, Wi-Fi, and Bluetooth connectivity, a touchscreen, and a LiPo battery, offering a robust and versatile solution for IoT development. Its compatibility with Adafruit's FeatherWing standard enables easy expansion, making it an ideal choice for educators, makers, and developers seeking a flexible and user-friendly platform. Features ESP32S3 microcontroller (with 8 MB flash and 8 MB PSRAM) LoRaWAN licence-free radio communication (plus the ESP32's excellent wifi and bluetooth support) 3.5" (320 x 480) LCD capacitive touchscreen for easy debugging and UI creation IR LEDs for surreptitiously switching the cafe TV off 1200 mAh LiPo battery with USB-C charging Vibration motor for notifications Compass/Accelorometer A robust case SD card slot Power and reset buttons Programmable in C++ or CircuitPython Expander board that supports two Featherwing sockets and a prototyping area Open source firmware compatible with the Arduino IDE, PlatformIO and Espressif's IDF development framework Included unPhone (assembled) Expander board FPC cable (to link the expander board to unPhone) Self adhesive mounts for the expander board Code Examples C++ library Kick the tyres on everything in the box The main LVGL demo CircuitPython Support forum Textbook (especially chapter 11)

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The Hti HT-18+ is a professional thermal imaging camera designed for precise temperature measurements and real-time thermal imaging. It has an impressive infrared resolution of 256 x 192 pixels at a frame rate of 25 Hz, resulting in clear and detailed thermal images. The temperature measurement range extends from −20°C to +550°C, with a measurement accuracy of ±2°C or ±2%. The camera is equipped with a 3.2-inch color display for easy viewing of thermal images. It offers five different color palettes – rainbow, iron red, cold color, black and white and white and black – to adapt the display to different requirements. It also has a built-in memory of 4 GB for storing images and videos in JPG or MP4 format, which can be transferred to a computer via a USB connection. Specifications Infrared resolution 256 x 192 Infrared response band 8 to 14 μm Cell size 12 μm NETD ≤50 mK @ 25°C, @F/1.1 Lens focal length 3.2 mm IFOV 3.75 mrad Field angle 56° x 42° Focus mode Free focus Temperature measurement range −20°C~550°C (−4~1022°F) Measurement accuracy −15°C to 550°C (±2°C or ±2%)−20°C to −15°C (±4°C) Temperature measurement resolution 0.1°C Temperature measurement mode Center point/hot and cold spot tracking Color palette Rainbow, iron oxide red, cold color, black & white, white & black Emissivity setting Adjustable from 0.01 to 1.00 Thermal imaging frame rate ≤25 Hz Visible light resolution 640 x 480 Display size 3.2-inch (240 x 320) Image display mode Infrared/visible light/dual light fusion Device storage Built-in 4 GB eMMC (user available storage space is about 3 GB Storage Image/Video Format JPG/MP4 Image/video export method USB connection to computer export Image analysis function Support offline analysis on PC Battery Type Dedicated removable rechargeable Lithium battery Battery capacity 2200 mAh Working time 2 to 3 hours Power interface Micro USB Power configuration 5 minutes, 20 minutes, no automatic shutdown Working temperature −10°C to +50°C Relative humidity 10% to 85% RH (non-condensing) Menu languages English, German, Italian, Chinese Dimensions 90 x 105 x 223 mm Weight 389 g Included 1x Hti HT-18+ Thermal Imaging Camera 1x USB cable 1x Manual Downloads Manual

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