Arduino

Posted on by Jean-Luc Aufranc (CNXSoft) - 3 Comments on ESP32-S3 Smart Audio devkit integrates 1.8-inch round touch LCD, microphone, optional battery and speaker box

ESP32-S3 Smart Audio devkit integrates 1.8-inch round touch LCD, microphone, optional battery and speaker box

Waveshare ESP32-S3 round display development board

Waveshare ESP32-S3-Touch-LCD-1.85C is an ESP32-S3 development kit with a 1.85-inch round touchscreen display with 360×360 resolution, support for Wi-Fi & Bluetooth BLE 5, and a built-in microphone. There’s also the ESP32-S3-Touch-LCD-1.85C-BOX with the same specifications, but an additional box with a speaker and a 3.7V battery. Both versions come with 16MB SPI flash, a microSD card slot, a USB-C port, a few buttons, GPIO and I2C expansion headers, and can be used as music players, smart speakers, HMI solutions,  etc… It’s not quite the first ESP32-S3 audio + display devkit we’ve covered, as Waveshare introduced the ESP32-S3-Touch-AMOLED-1.8 earlier this year with a squared AMOLED display, and Wireless Tag launched the ESP32 Agent Dev Kit to interface with LLMs. ESP32-S3-Touch-LCD-1.85C specifications: SoC – Espressif ESP32-S3R8 CPU – Dual-core Tensilica LX7 microcontroller up to 240 MHz with vector instructions for AI acceleration Memory – 8MB PSRAM Wireless – WiFi 4 and Bluetooth […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 2 Comments on SATURN NITRO – A Microchip PIC32MK development board with Arduino Nano form factor

SATURN NITRO – A Microchip PIC32MK development board with Arduino Nano form factor

PIC32MK development board

While Microchip regularly releases PIC32 microcontrollers and evaluation kits, we don’t see that many PIC32 development boards from third parties. The SATURN NITRO is an exception, and the Arduino Nano-inspired development board is equipped with a 120 MHz PIC32MK general-purpose and motor control 32-bit MIPS microcontroller with 256KB SRAM, 1024KB flash, and 4KB EEPROM. The board closely follows the design of the official Arduino Nano board and can be seen as a beefed-up version with a much more powerful microcontroller delivering 198 DMIPS compared to the Microchip ATmega328P 8-bit microcontroller @ 16 MHz with just 2KB SRAM, 32 KB flash, and 1KB EEPROM, and a less capable I/Os. SATURN NITRO specifications: MCU – Microchip PIC32MK1024MCM064 Core – MIPS32 microAptiv MCU core @ 120 MHz with FPU; up to 198 DMIPS Memory – 256 KB SRAM Storage – 1MB flash, 4KB EEPROM USB – 1x Micro USB OTG port also used […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 17 Comments on A LoRa-based Walkie-Talkie? Meet LILYGO T3-S3 MVSR LoRa voice communication kit

A LoRa-based Walkie-Talkie? Meet LILYGO T3-S3 MVSR LoRa voice communication kit

LoRa Voice Communication Kit Walkie Talkie

With its low-power, long-range capabilities, LoRa has been used for P2P and Mesh messaging with firmware like MeshTastic, but due to its limited bandwidth, we haven’t seen quite as many LoRa audio applications. This has not stopped LILYGO from designing the T3-S3 MVSR LoRa voice communication kit, integrating LoRa radio, a microphone, and a speaker to use the board as a walkie-talkie solution working over Semtech SX1262 or SX1280 RF transceiver. LILYGO T3-S3 MVSR specifications: SoC – Espressif Systems  ESP32-S3FH4R2 CPU – Dual-core Tensilica LX7 microcontroller @ up to 240 MHz Wireless – 2.4 GHz 802.11n WiFi 4 and Bluetooth 5.0 LE connectivity Memory – 2MB PSRAM Storage – 4MB SPI flash Storage – MicroSD card slot Display – 0.96-inch 128×64 OLED display with SSD1306 I2C driver Audio MAX98357A Speaker MSM261S4030HOR Microphone LoRa module (one or the other) LORA32 SX1262 with 868MHz or 915 MHz radio LoRa 2.4G module based […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 2 Comments on SparkFun IoT RedBoard – Raspberry Pi RP2350 or ESP32 WiFi & Bluetooth boards with Arduino UNO R4 form factor

SparkFun IoT RedBoard – Raspberry Pi RP2350 or ESP32 WiFi & Bluetooth boards with Arduino UNO R4 form factor

Sparkfun IoT RedBoard RP2350

SparkFun has just launched the “IoT RedBoard – RP2350” and “IoT RedBoard – ESP32” boards with Arduino UNO R4 form factor based on respectively Raspberry Pi RP2350B + RM2 wireless module and ESP32-WROOM-32E WiFi and Bluetooth module. Both boards feature Arduino UNO headers and a Qwiic connector for expansion, a microSD card for storage, battery support, USB and DC jack power input, plus a few buttons and LEDs. The RP2350 board also adds an HSTX connector mainly useful for controlling HDMI or SPI displays. Sparkfun IoT RedBoard specifications: MCU sub-system and wireless RP2350 model MCU –  Raspberry Pi RP2350B CPU Dual-core Arm Cortex-M33 @ 150 MHz with Arm Trust zone, Secure boot Dual-core RISC-V Hazard3 @ 150 MHz Up to two cores can be used at any given time Memory – 520 KB on-chip SRAM Memory – 8MB PSRAM Storage – 16MB Flash Wireless module – Raspberry Pi RM2 2.4 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 5 Comments on M5Stack StamPLC – An ESP32-S3-based PLC with opto-isolated inputs, relay ouputs, RS485, CAN Bus, and more

M5Stack StamPLC – An ESP32-S3-based PLC with opto-isolated inputs, relay ouputs, RS485, CAN Bus, and more

M5Stack ESP32-S3 PLC

“M5Stamp PLC Controller with M5StampS3” or just “M5Stack StamPLC” is a programmable logic controller (PLC) based on the StampS3A ESP32-S3 wireless module and offering 8 opto-isolated digital inputs, 4 relay outputs supporting both AC and DC loads, plus RS485 and CAN Bus interfaces. The DIN Rail IoT controller also features a 1.14-inch color display, a RESET/BOOT button, 3 user buttons, and a buzzer or user interaction. The M5Stack StamPLC also integrates an LM75 temperature sensor and an INA226 voltage/current sensor, as well as a microSD card slot for data storage, and it can take a wide voltage input between 6 and 36V DC. M5Stack StamPLC specfications: Control Module – StampS3A (similar to M5Stamp S3) SoC – Espressif Systems ESP32-S3FN8 CPU – Dual-core 32-bit Xtensa LX7 microcontroller with AI vector instructions up to 240MHz, RISC-V ULP co-processor Memory – 512KB SRAM Storage- 8MB flash Wireless – 2.4GHz WiFi 4 (802.11b/g/n), Bluetooth […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 2 Comments on M5Stack Unit Gateway H2 – A tiny ESP32-H2 Thread/Zigbee gateway selling for $6.50

M5Stack Unit Gateway H2 – A tiny ESP32-H2 Thread/Zigbee gateway selling for $6.50

M5Stack Gateway H2

M5Stack’s Unit Gateway H2 is a small Thread/Zigbee gateway powered by the ESP32-H2-MINI-1 module with an 802.15.4 radio for Zigbee 3.0, Thread 1.3, and Matter connectivity. The Unit Gateway H2, also known as Gateway H2 Unit…, can operate as a gateway (e.g. a Thread Board Router) or a terminal device that communicates with a M5Stack device via serial/UART through the Grove interface.  It also features a USB-C port for power, firmware flash, and debugging. M5Stack says it’s suitable for smart homes, environmental monitoring, sensor networks, and low-power wireless communication nodes.   M5Stack Gateway H2 Unit specifications: Wireless module – ESP32-H2-MINI-1-N2 SoC – Espressif Systems ESP32-H2 CPU – 32-bit RISC-V SoC clocked at up to 96 MHz RAM and storage – 320 KB SRAM, 128 KB ROM, 4 KB LP memory Wireless – 802.15.4 radio with Zigbee 3.0, Thread 1.3, and Matter support. (Note: the ESP32-H2 also supports Bluetooth 5.2 LE/Mesh, […]

Posted on by Debashis Das - 6 Comments on ESP32-S3 based AC voltage controller/dimmer features a knob with integrated display

ESP32-S3 based AC voltage controller/dimmer features a knob with integrated display

Matouch 1.28 inch ToolSet AC Dimmer

Makerfabs has recently introduced Matouch 1.28-inch ToolSet_AC Dimmer an open-source ESP32-based AC voltage controller for dimming lights or adjusting motor speeds using phase-cut dimming. Built around an ESP32-S3 wireless MCU, it features a 1.28” capacitive touch display (240×240), and a UI designed with LVGL/Squareline and the Arduino V2.3.4 IDE. The device relies on a BT139 Triac and a zero-cross detection circuit for precise AC voltage control, along with an onboard relay to enable a full AC on/off switch. With an integrated AC-DC module providing 5V @ 0.6A, it can operate within an input range of AC 100-240V, 50Hz-60Hz, with a maximum load of 10A at 240VAC. Designed for home and industrial applications, it can control lighting environments and electrical appliances while being open-source for customization and integration into various automation projects. Matouch 1.28-inch ToolSet_AC Dimmer specifications: SoC – Espressif Systems ESP32-S3 CPU – Xtensa® Dual-core 32-bit LX7 Microprocessor with up to 240MHz […]

Posted on by Debashis Das - No Comments on Adafruit Metro RP2350 development board follows Arduino UNO form factor, features HSTX DVI output

Adafruit Metro RP2350 development board follows Arduino UNO form factor, features HSTX DVI output

Adafruit Metro RP2350 dev board

The Adafruit Metro RP2350 is a Raspberry Pi RP2350 development board that closely follows the Arduino UNO form factor for compatibility with existing Arduino shields. Key features include 37 GPIOs, a microSD card slot, a 5V buck converter (6–17V input), an onboard RGB NeoPixel, a Stemma QT port for I2C peripherals, a 22-pin HSTX port for DVI video output, and a USB Type-C port for power and data. It also provides a Pico Probe debug port, an RX/TX switch for UART flexibility, and a UF2 bootloader for easy firmware updates. Target applications include IoT projects, embedded system development, hardware prototyping, and educational purposes. Adafruit Metro RP2350 specifications SoC – Raspberry Pi RP2350 CPU Dual-core Arm Cortex-M33 @ 150 MHz with Arm Trust zone, Secure boot Dual-core RISC-V Hazard3 @ 150 MHz Up to two cores can be used at any given time Memory – 520 KB on-chip SRAM Security 8KB of […]

UP 7000 x86 SBC