Earlier this year, Seeed Studio introduced the Grove Beginner Kit for Arduino that included the Arduino UNO compatible Seeduino Lotus board placed at the center and ten pre-wired and detachable Grove modules to get started with sensors on Arduino with no cabling whatsoever apart from the USB cable. Arduino must have seen and liked the design, and Seeed Studio has collaborated with the Italian company to create the Arduino Sensor Kit Base with a very similar design, but with a twist as instead of an all-in-one platform with modules and an Arduino board, it’s a very large shield that seats on tops of Arduino UNO. The Arduino Sensor Kit base includes the following: Base shield with 16 Grove connectors, instead of just 12 Grove connectors on the Beginner Kit, including 7x digital connectors, 4x analog connectors, 4x I2C connectors, and one UART connector; A 3.3V/5V voltage switch is also included 10 pre-wired modules without the requirements for breadboard nor jumper […]
M5Stack has just launched its unique and latest core device with a touchscreen e-Ink display. M5Paper ESP32 IoT Development Kit is a fully programmable microcontroller-based platform that can be an ideal choice for your IoT applications. This low-power device could suit such purposes as an industrial controller or smart weather display. The M5Paper comes with the ESP32-D0WD, the same chip that has powered M5Stack Core2. The e-Ink display supports 16-level grayscale, which provides a great reading experience. The display is a GT911 capacitive touch screen that supports multipoint touch and a variety of gesture controls. M5Paper ESP32 IoT Development Kit Specifications SoC – Espressif ESP32-D0WDQ6-V3 dual-core clocked at 240MHz with 520KB SRAM, Wi-Fi, dual-mode Bluetooth connectivity. Memory/storage – 16 MB of flash memory along with 8 MB of PSRAM. Antenna – 2.4GHz 3D antenna. Display – GT911 capacitive touch screen with 960×540 resolution (IT8951 driver) along with 4.7″ e-Ink display, 235 PPI, and display area of 58.32×103.68 mm. Misc – […]
Itaca Innovation previously launched uChip, an Arduino-compatible board that has a Cortex M0+ MCU that features 0.3” spacing between rows. Now, next-hack joined Itaca Innovation to come up with an expansion board for uChip. The uChip Simple VGA Console (uSVC) Arduino based retro-gaming console is open hardware and is a programmable console. It will allow creating and playing retro “9-bit” games with standard USB controllers and keyboards. You will get one uChip (pre-soldered) and the uSVC game loader pre-programmed, a PCB with a pre-soldered SMD MicroSD card reader. It also includes all of the components needed to build your uSVC, and Bill of Material (BOM) and assembly drawings will also be provided. uSVC Specifications uChip is the heart of uSVC (48 x 86 x 17 mm), with a Microchip SAMD21 Arm Cortex-M0+ MCU clocked @ 48 MHz (Arduino Zero compatible). A VGA output of 57 Hz vertical frequency, 30 kHz horizontal frequency. It comes with a 3.5mm audio jack, 10-bit […]
I thought Selpic A-star 3D printer we recently covered was already small, but if you’re looking for an ultra-portable printer, it will be hard to beat the Arduino-based, open-source hardware Lite3DP resin 3D printer that can fit in the palm of your hand, and weighs just around 350 grams. That also means a pretty small build volume of just 45.1 x 33.8 x 70 mm, so it’s really for small objects, and for instance, a typical Raspberry Pi case could not be printed. But let’s have a look. Lite3DP printer’s key features and specifications: Electronics – All-in-one PCB with Arduino Pro Mini, a driver for the stepper motor, a module for a microSD card, and a screen with dual-functionality. Technology – MSLA // LCD-SLA Resolution – XY: 0.14 mm; Z: 0.05 and 0.1 mm Build volume (W x L x H) – 45.1 x 33.8 x 70 mm Tray volume – 50 cm³ for the liquid resin Compatible resins – […]
Using inexpensive relays to switch AC or DC loads work well in most cases, but those relays will be quickly damaged when faced with high DC voltages, fast switching times, or other endurance requirements for which MOSFET’s are better suited, and that’s why MOSFET power supplies are found in 3D printers. Sequent Microsystems has made a habit to provide specialized Raspberry Pi HAT with relays or terminals for resistance temperature detectors that are stackable to supports a larger number for I/O or sensors. The company is now back at it with the 8-MOSFET stackable, DIN-rail mountable board that works not only with Raspberry Pi SBC, but also popular Arduino, ESP32, and other maker boards. 8-MOSFET key features and specifications: Eight MOSFETs with status LEDs 4 optimized for high-current (HC) loads up to 10 A / 24 VDC 4 optimized for high-voltage (HV) loads up to 2 A / 240 VDC Pluggable connectors Host interface – I2C via 40-pin Raspberry Pi […]
For more than 6 years, the LibIIO library has existed to ease the development of software interfacing Linux Industrial I/O (IIO) devices. It is part of the Linux Kernel and a subsystem that provides support for devices like analog to digital or digital to analog converters (ADCs, DACs). This subsystem includes ADCs, accelerometers, pressure sensors, color, light and proximity sensors, temperature sensors, RF transceivers, and many more. You can use LibIIO natively on an embedded Linux target. It is cross-platform, supporting Linux, Windows, and Mac OS. Analog Devices Inc. was the main company behind LibIIO development, which is currently an active open-source library, which many people have contributed to. What does LibIIO do? LibIIO will identify the channels that belong to each device. It will assign specific attributes, one for the channels and one for the devices. Then, it will also create a context that is a place where all the devices exist, and you can browse through the channels, […]
LilyGO has made plenty of ESP32 “TTGO” boards with various features be it PoE, battery support, OLED display, cellular connectivity, and even a devkit in watch form factor. The latest product from the company specifically targets smart farming/gardening as TTGO T-Higrow embeds either DHT11 temperature and humidity sensor or BME280 temperature, humidity, and barometric sensor to report soil temperature and moisture over Bluetooth or WiFi. It can also come as a kit with a battery and a 3D printed enclosure. TTGO T-Higrow board specifications: SoC – Espressif Systems ESP32 dual-core LX6 processor @ up to 240 MHz with 520 LB SRAM, Wi-Fi & Bluetooth Storage – 4MB QSPI flash Wireless 2.4 GHz 802.11b/g/n WiFi 4 up to 150 Mbps Bluetooth 4.2 BR/EDR and BLE Sensors Option 1 – DHT11 temperature and humidity sensor Option 2 – BME280 temperature, humidity, and barometric sensor Expansion – 2x 12-pin through holes with UART, SPI, SDIO, I2C, PWM, I2S, IR, GPIOs, capacitive touch sensing, […]
Adafruit Feather form factor has become more popular in recent years with third-parties introducing Feather compatible boards such as the Giant Board (Linux capable), OrangeCrab (FPGA), or FeatherS2 (ESP32 WiFi + Bluetooth), and as well as FeatherWing add-on boards. Azerbaijan based MakerTronika Labs has launched their own Feather compatible board with LoRa connectivity: Penguino Feather 4260. The development board is powered by a RAK4260 module based on SAMR34 LoRa SiP and supports both 868 and 915 MHz bands. Penguino Feather 4260 specifications: LoRa module – Rak wireless RAK4260 module with: SiP – Microchip ATSAMR34J18 SiP with SAML21 Arm Cortex M0+ MCU @ 48 MHz, 40 KB RAM, 256 KB Flash, Semtech SX1276 LoRa Connectivity Frequency Range – 862 to 1020 MHz High level of accuracy and stability (32MHz TXCO) Max Tx Power: 20dBm; Max Sensitivity: -148dBm; Rx Current: 17mA (typical) Compliant with LoRaWan 1.0.2 Power Consumption Low RX current of 13.6mA 790 nA in sleep mode Antenna – SMA and […]
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