Arduino News - Page 46 of 117 - CNX Software

February 10, 2022 by Jean-Luc Aufranc (CNXSoft) - No Comments

TTGO T-Block modular ESP32 devkit supports “Trolley” covers acting as display, buttons, sensor, proto area, etc…

When I first LilyGO TTGO T-Block ESP32 devkit with an enclosure and a display it reminded me of the M5Stack Core2 devkit, but it’s actually different as LilyGO designed a modular system that allows users to change the functionality of the top cover with expansion boards called “Trolleys”. That means TTGO T- Block can be fitted with a small e-Ink display, a prototyping cover, an RGB LED matrix, a small board that supports various MQ gas sensors, touch buttons, or a Trolley board equipped with headers compatible with common Arduino modules. TTGO T-Block Host 9102 preliminary specifications: WiSoC – ESP32 dual-core processor @ 240 MHz with 520KB SRAM, WiFi 4 and Bluetooth LE 4.2/5.x connectivity Memory – 8MB PSRAM Storage – 16MB SPI flash, MicroSD card slot USB – 1x USB Type-C for power and programming via CH2104 USB to TTL chip Trolley interface – 20-pin connector with 17x GPIO, […]

February 8, 2022February 8, 2022 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

MutantW V1 – An open-source ESP32 smartwatch designed with Autodesk Fusion 360 and EAGLE

Rahmanshaber is known for its DIY Raspberry Pi handheld PCs such as MutantC v4, but MutantW V1 is a completely different device as an ESP32-based DIY open-source smartwatch that he designed with Autodesk Fusion 360 and EAGLE. The smartwatch is equipped with a 1.7-inch IPS LCD display (non-touch), two hardware buttons, a NeoPixel RGB LED, a vibration motor, as being powered by an ESP32 SoC offers both 2.4GHz WiFi 4 Bluetooth LE connectivity. MutantW V1 specifications: WIreless module – A.i. Thinker ESP32-S WiFi and Bluetooth module with ESP32 dual-core processor @ 240MHz with 520KB SRAM, 4MB SPI flash Display – 1.69-inch SPI IPS LCD display (ST7789 driver) with 280 x 240 resolution, scratch-resistant front glass. Note: no touchscreen Programming – Via 4-pin charging cable or OTA firmware upgrade Misc – 2x programmable buttons, NeoPixel RGB LED, vibration motor Battery – 3.7V/200mAh LiPo battery likely good for one or two days; […]

January 31, 2022 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Maker Nano RP2040 offers Arduino Nano, Grove and Qwiic modules compatibility

Cytron Maker Nano RP2040 is board similar to Raspberry Pi Pico but with Arduino Nano form factor, a proper reset button, two RGB LEDs, single color LEDs for some GPIOs, a buzzer, as well as two Qwicc/STEMMA QT connectors that can also be used to connect Seeed Studio Grove modules using provided conversion cables. While the board mostly aims to be an Arduino Nano/Maker Nano upgrade, there are some notable differences with the I/O voltage being limited to 3.3V without 5V tolerance, and there are only four ADC inputs (A0 – A3) instead of eight on the Arduino Nano. Maker Nano RP2040 specifications: MCU – Raspberry Pi RP2040 dual-core Arm Cortex-M0+ microcontroller @ 125 MHz with 264KB internal RAM Storage – 2MB flash Audio – Piezo buzzer with mute switch Expansion 2x 15-pin headers with 22x GPIOs, 14x of which with LEDs,2x I2C, 2x UART, 2x SPI, 14x PWM, 4x […]

January 29, 2022January 31, 2022 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Arduino Portenta gets an LTE Cat. M1/NB IoT GNSS shield

Arduino Portenta LTE Cat-M1 NB-IoT GNSS shield

Arduino PRO Portenta family of industrial boards is getting a new LTE Cat. M1/NB-IoT GNSS shield that adds global connectivity and positioning capabilities through the Cinterion TX62-W LPWAN IoT module by Thales. The shield works with the Portenta H7 board as well as its lower-cost variants and Arduino MKR boards and will power industry 4.0 and edge computing solutions such as positioning, asset tracking, and remote monitoring applications at the factory, in agriculture, public utilities, and smart cities. Portenta CatM1 shield specifications: Cinterion TX62-W module with: 3GPP Rel.14 Cat.M1, Cat.NB1, Cat.NB2 Global coverage with a single SKU FDD-LTE Bands – 1, 2, 3, 4, 5, 8, 12, 13, 18, 19, 20, 25, 26, 27, 28, 66, 71, 85 LTE Cat. M1 – DL: max. 300 kbps, UL: max. 1.1 Mbps LTE Cat. NB1 – DL: max. 27 kbps, UL: max. 63 kbps LTE Cat. NB2 – DL: max. 124 kbps, […]

January 28, 2022May 29, 2022 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

The Eclipse Oniro Project aims to deliver consumer & IoT software that works across multiple platforms

Several of the embedded talks at FOSDEM 2022 mention the “Eclipse Oniro Project”. I had never heard about that project from the Eclipse Foundation, so let’s see how they describe it: Oniro is an Eclipse Foundation project focused on the development of a distributed open source operating system for consumer devices, regardless of the brand, model, make. Oniro is a compatible implementation for the global market of OpenHarmony, an open source operating system specified and hosted by the OpenAtom Foundation. Designed with modularity in mind, Oniro offers greater levels of flexibility and application portability across the broad spectrum of consumer and IoT devices — from tiny embedded sensors and actuators, to feature rich smart appliances and mobile companions. As a distributed and reusable collection of open source building blocks, Oniro enables compatibility with other open source technologies and ecosystems. Through close collaboration with projects and foundations such as OpenHarmony from […]

January 7, 2022January 7, 2022 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

Board with 25 RGB LEDs is offered with ESP32-C3 or ESP32-Pico-D4

In case you are in need of a tiny WiFI or Bluetooth-connected board with an RGB LED matrix, two have shown up on Banggood with basically the same 25 RGB LED design , except “C3FH4 RGB” board is based on ESP32-C3 RISC-V SoC, while the other, named “PICO D4 RGB“, features ESP32-Pico-D4 SiP (System-in-Package). The boards are cute and the main purpose is probably for decoration/ornament, but I’d imagine if you purchase a few they could also be used as an experimentation/education platform for mesh networking, using the ESP Mesh Development Framework (ESP-MDF) for instance. C3FH4 RGB / PICO D4 RGB board specifications: SoC/SiP C3FH4 RGB board – ESP32-C3FH4 SoC with RISC-V core @ 160 MHz, 4MB flash, 2.4GHz Wi-Fi, and Bluetooth 5 LE with Long-Range support PICO D4 RGB board – ESP32-PICO-D4 system-in-package with ESP32 dual-core Xtensa processor @ 240 MHz, 2.4GHz Wi-Fi and Bluetooth dual-mode, 4MB flash Ceramic […]

January 3, 2022January 4, 2022 by Jean-Luc Aufranc (CNXSoft) - 10 Comments

ESP32 CAN board fits into OBD-II dongle, supports auto shutdown

RejsaCAN-ESP32 is a small board based on ESP32-WROOM-32 WiFi (and Bluetooth) module with a CAN interface that fits into a 3D printed OBD-II dongle for easy installation into most cars. Magnus Thomé has already published several automotive projects, notably for car racing with a system that checks real-time tire temperature, and he designed RejsaCAN-ESP32 board so that it can be plugged directly into his car with support for 5-15V input voltage, and also includes an auto-shutdown option to prevent battery drain by monitoring the battery voltage in the car. RejsaCAN-ESP32 specifications: Wireless module – ESP32-WROOM-32 module with a dual-core ESP32 processor @ 240 MHz with 2.4 GHz WiFi 4 and Bluetooth 4.2 connectivity, PCB antenna, 32Mbit SPI flash USB – 1x USB-C port for power and programming via CP2104 USB to TTL chip Expansion – 15-pin header with 3x GPIO, SPI, I2C, analog input, PWM or analog output, CAN bus […]

December 24, 2021December 24, 2021 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Newt 2.7-inch wireless display offers high refresh rate with SHARP’s Memory-in-Pixel (MiP) technology (Crowdfunding)

Newt is a battery-powered, always-on, ESP32-S2 wireless display with a 2.7-inch display leveraging SHARP’s Memory-in-Pixel (MiP) technology to provide an experience similar to E-Ink displays but with a much faster refresh rate. The wireless display can connect to the Internet to retrieve weather, calendars, sports scores, to-do lists, quotes, and whatever you’d like. Since it is powered by an ESP32-S2 microcontroller you can program with the ESP-IDF framework, Arduino, MicroPython, or CircuitPython. Newt display specifications: WiFi module – Espressif ESP32-S2-WROVER module with ESP32-S2 single-core Xtensa LX7 processor @ 240 MHz with 4 MB flash and 2 MB PSRAM Display – 2.7-inch, 240 x 400 pixel SHARP MiP LCD with “high-contrast, high-resolution, low-latency content with ultra-low power consumption”, reflective mode to eliminate the need for a backlight. USB – 1x USB Type-C port for programming, power, and charging Expansion – I2C Qwiik connector Misc Micro Crystal RV-3028-C7 RTC (45nA power consumption) […]