stem News - Page 5 of 7 - CNX Software

February 2, 2023February 2, 2023 by Jean-Luc Aufranc (CNXSoft) - No Comments

FOSSBot open design 3D printed educational robot is made with Raspberry Pi and off-the-shelf parts

FOSSBot is an “open design” 3D printed educational robot comprised of a Raspberry Pi SBC and various off-the-shelf modules, as well as open-source software that can be used for education purposes. The FOSSBot DIY robot has been developed by the Harokopio University of Athens and the Greek Free and Open Source Software (GFOSS) community, and builds upon the “GSOC 2019 – A DIY robot kit for educators” with the main goal being to have a platform to “familiarize teachers with modern education models based on the S.T.E.A.M approach. (Science, Technology, Engineering, Arts, Mathematics)”. FOSSbot key components: SBC – Raspberry Pi Zero W, Raspberry Pi 3, or Raspberry Pi 4. Mechanically and electrically compatible Raspberry Pi alternatives could be an option too although part of the software would have to be modified Storage – 32GB MicroSD card Expansion board – Adafruit Perma-Proto HAT for Pi – No EEPROM to connect sensors […]

February 1, 2023 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

XGO 2 – A Raspberry Pi CM4 based robot dog with an arm (Crowdfunding)

XGO 2 is a desktop robot dog using the Raspberry Pi CM4 as its brain, the ESP32 as the motor controller for the four legs and an additional robotic arm that allows the quadruped robot to grab objects. An evolution of the XGO mini robot dog with a Kendryte K210 RISC-V AI processor, the XGO 2 robot offers 12 degrees of freedom and the more powerful Raspberry CM4 model enables faster AI edge computing applications, as well as features such as omnidirectional movement, six-dimensional posture control, posture stability, and multiple motion gaits. The XGO 2 robot dog is offered in two variants – the XGO-Lite 2 and the XGO-Mini 2 – with the following key features and specifications: The company also says the new robot can provide feedback on its own postures thanks to its 6-axis IMU and sensors for the joints reporting the position and electric current. A display […]

January 30, 2023February 2, 2023 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

MicroBlocks is a visual programming IDE for 32-bit microcontrollers

MicroBlocks is a visual programming IDE for 32-bit microcontrollers currently supporting the BBC Micro:bit V1/V2, Calliope mini (aka the German Micro:bit), Adafruit Circuit Playground Express and Bluefruit, Raspberry Pi Pico and Pico W, and various other boards including ESP32 and ESP8266-based boards. I discovered MicroBlocks in the list of talks for FOSDEM 2023, and although it did not make it to my virtual schedule, I thought it was interesting to look into and write about it. In their upcoming FOSDEM talk, Bernat Romagosa and Kathy Giori refer to MicroBlocks as small, fast, and human-friendly with development guided by four guiding principles: liveness, parallelism, portability, and autonomy. The IDE is inspired by Scratch, and as such, looks very similar to other visual programming interfaces I have used over the years. You can launch MicroBlocks from Google Chrome or Microsoft Edge on a PC (not a mobile device) without having to install […]

January 24, 2023January 24, 2023 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

HackyPi Raspberry Pi RP2040 USB dongle serves as an educational “hacking” tool (Crowdfunding)

SB Components’ HackyPi is a Raspberry Pi RP2040-based USB dongle whose main purpose is to teach ethical hacking and coding programs, in other words, some sort of portable educational hacking tool. The small USB stick features a 1.14-inch color LCD, a MicroSD card to store data such as scripts and photos, and a button to enable programming like on other Raspberry Pi RP2040 boards. HackyPi specifications: MCU – Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller @ 133 MHz with 264KB SRAM Storage – QSPI flash, MicroSD card slot Display – 1.14-inch color LCD with 240 x 135 resolution USB – 1x USB 1.1 Type-A port Misc – Boot “Initiate Program” button Power Supply – 5V via USB port Dimensions – 55.04 x 23.20mm SB Components says the HackyPi USB dongle can be programmed with Raspberry Pi Pico C/C++ and MicroPython SDKs as well as CircuitPython, and they will release hardware design […]

January 10, 2023January 11, 2023 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Maker Feather AIoT S3 – An ESP32-S3 board programmable with CircuitPython or Arduino

Cytron Maker Feather AIoT S3 is an ESP32-S3 board compatible with the Adafruit Feather form factor and suitable for makers and STEM education with features like LEDs for GPIOs, a buzzer, expansion headers and connectors, and support for CircuitPython & Arduino. The WiFi and Bluetooth LE IoT board also supports LiPo and Li-Ion batteries, includes a USB Type-C port for power/charging and programming, and a few buttons. It’s suitable for machine learning thanks to the vector extensions found in the ESP32-S3 microcontroller. Maker Feather AIoT S3 specifications: Wireless module – Espressif ESP32-S3-WROOM-1-N8R8 module with ESP32-S3 dual-core LX7 microprocessor @ up to 240 MHz with Vector extension for machine learning, 8MB FLASH, 8MB PSRAM, WiFi 4 and Bluetooth 5 LE/Mesh USB – 1x USB Type-C port power and programming Expansion 2x GPIO headers compatible with Adafruit Feather form factor and FeatherWing add-on boards 3x Maker Ports compatible with Qwiic, STEMMA QT, […]

December 22, 2022December 21, 2022 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Banana BPI-Bit-S2 BBC Micro:bit compatible board supports WiFi

Banana BPI-Bit-S2 is a board for the education market that’s compatible with the BBC Micro:bit V2, but offers WiFi connectivity instead of Bluetooth LE through an Espressif Systems ESP32-S2 wireless microcontroller. The BPI-Bit-S2 succeeds the earlier Banana Pi BPI-Bit with ESP32 WiFi & BLE microcontroller that was a closer match to the original BBC Micro:bit than the new ESP32-S2 board for which I see little benefit, except for the slightly lower price tag. Banana BPI-Bit-S2 specifications: Wireless MCU – Espressif Systems ESP32-S2FN4R2 single core LX7 microcontroller with 320 kB SRAM, 2MB PSRAM, 4MB flash, 2.4 GHz WiFi connectivity LEDs – 25x RGB LED matrix USB – 1x USB Type-C port for power and programming Sensors – 2x light sensors, 1x thermistor sensor Expansion – 3x I/O rings, 3V/GND rings, 20-pin edge connector (compatible with BBC Micro:bit V2 design) with up to 16x GPIO, I2C, SPI, 3.3V, and GND Misc – […]

December 13, 2022December 13, 2022 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Open AI Lab EAIDK-610 devkit targets computer vision education with OpenCV

Open AI Lab EAIDK-610 is an embedded AI development kit powered by a Rockchip RK3399 processor, recently added to Linux 6.1 and described as “popularly used by university students” in the kernel changelog. But I had never heard about it, and it turns out it’s because it’s popular with students in China, and most documentation is written in Chinese. The development board is equipped with 4GB LPDDR3, a 16GB eMMC flash, HDMI video output, Gigabit Ethernet and WiFi 5, a few USB ports, a 40-pin GPIO header, and more. EAIDK-610 specifications: SoC – Rockchip RK3399 System Memory – 4GB LPDDR3 Storage – 16GB eMMC flash and MicroSD card slot Video Output HDMI 2.0 up to 4Kp60 MIPI DSI up to 1280×720 @ 60 fps 4-lane eDP 1.3 Audio – Speaker header, built-in microphone, 3.5mm audio jack, I2S header, digital audio via HDMI Camera I/F – 2x MIPI CSI up to […]

December 5, 2022July 10, 2023 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

UniHiker education platform teaches STEM with Mind+ and Jupyter

DFRobot UniHiker is a STEM education platform with a 2.8-inch touchscreen display, a Rockchip RK3308 quad-core Cortex-A35 processor, a GD32V RISC-V microcontroller, WiFi and Bluetooth connectivity, as well as various headers for expansion, and a BBC Micro:bit compatible edge connector. The UniHiker runs Debian 10 Linux and can be used to teach programming using Mind+ visual programming IDE or Jupyter open-source interface, as well as IoT and AI basics thanks to tutorials and lessons available in Chinese only as the platform clearly targets the education market in mainland China at this point in time. Unihiker specifications: SoC – Rockchip RK3308 Quad-core Arm Cortex-A35 processor @ 1.2GHz without GPU MCU – Gigadevice GD32VF103C8T6 RISC-V microcontroller @ 108MHz with 64KB flash, 32KB SRAM System Memory – 512MB DDR3 Storage – 16GB eMMC flash, MicroSD card socket Display – 2.8-inch touchscreen color display with 320×240 resolution Connectivity – 2.4 GHz Wi-Fi & […]