Today, we’ll review the ACMER P3 48W laser engraver suitable for engraving and cutting various materials such as wood, acrylic, leather, and coated thin metals. It has a fully enclosed design protecting against laser light and reducing smoke in the room for better safety. The laser engraver also supports air filtration through the ACMER AP220 air purifier which we received for review as part of a full kit. Additionally, the P3 48W comes with a built-in camera for precise work positioning and previewing before engraving or cutting begins. Other safety features include automatic operation shutdown when the machine cover is opened. Users can import files through USB, Wi-Fi, or SD card, and the machine is compatible with popular software like LightBurn and LaserGRBL, as well as the ACMER mobile app, making it easier to use with file formats such as PNG, JPG, SVG, and DXF. ACMER P3 48W laser engraver [...]

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US-based CNC and motion control developer Bart Dring has designed the 6x CNC Controller FluidNC-compatible CNC controller board built around an ESP32 (pre-programmed with FluidNC) module and including 6 external stepper motor drivers with 5V signals. It allows configuration, upgrades, and control via a web browser. The controller also includes individual step/direction controls and LED indicators for easy setup. It offers eight input ports for limit switches, probes, and controls, along with multiple spindle control options, including RS485 VFD, 0-10V, PWM, relay-based, brushless motor (BESC), and laser PWM with enable signals. Additionally, it has two 3A MOSFETs for relays or solenoids, a MicroSD card slot for local G-code storage, and an expansion socket for GPIO extenders or pendant interfaces. 6x CNC Controller specifications Wireless module – Espressif Systems ESP32-WROOM-32E ESP32 dual-core microcontroller 4MB flash 2.4 GHz WiFi and Bluetooth LE connectivity, built-in PCB antenna Storage – MicroSD card socket for [...]

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Tobor (robot spelled in reverse) is a modular and open-source robotic arm platform powered by the ESP32-WROVER-I and ESP32-WROOM-32 (FluidNC CNC Controller core) modules. It is described as a “fully-featured robotic system that can fit on your desktop and is capable of helping you automate your workflow.” Tobor is billed as a customizable assistant for complex tasks such as assembly line help, CNC design, and rapid prototyping. The Tobor ecosystem includes several open-source components, including robotic arms, motion platforms, sensors, and actuators, that can be combined to create a unique system for “almost any desktop automation.” The Tobor Robot Arm supports multiple toolhead options such as the pen plotter toolhead, z-stage toolhead with 4th axis and suction cup, and the pick and place expansion pack. We have seen other open-source robotic platforms such as the SO-ARM100 AI robotic arm kit, CYOBot v2, and MIKRIK V2 Robot Car. Tobor Robot Arm [...]

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The ESP32 Agent Dev Kit is an ESP32-S3-powered voice assistant that offers integrations with popular LLM models such as ChatGPT, Gemini, and Claude. Wireless-Tag says the Dev Kit is suitable for “95% of AIoT applications, from smart home devices to desktop toys, robotics, and instruments” In some ways, it is similar to the SenseCAP Watcher, but it has a larger, non-touch display and dual mic input. It however does not support local language models. It also features a standard MikroBUS interface for expansion. For voice capabilities, the ESP32 Dev Kit integrates two onboard, noise-reducing microphones and a high-fidelity speaker. The built-in infrared laser proximity sensor detects human proximity and movement for “smart interactive experiences”. ESP32 Agent Dev Kit specifications: MCU – ESP32-S3 dual-core Tensilica LX7 microcontroller @ 240MHz, 8MB PSRAM Storage – 16MB flash Display – 3.5-inch Touchscreen, 480×360 resolution Camera – 5MP OmniVision OV5647 camera module, 120° field of [...]

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HackCable is a wireless-enabled USB-C keystroke injection cable described as the “ultimate tool for cybersecurity enthusiasts and ethical hackers.” powered by the ESP32-S3 or the Raspberry Pi RP2040. The ESP32-S3 version is described as the Wi-Fi Version and offers a built-in Wi-Fi hotspot, remote operation, and master-slave configuration for multiple cables. The Normal Version is a cheaper variant powered by the Raspberry Pi RP2040 microcontroller and built for focused, offline tasks where wireless control isn’t needed. The HackCable promises hardware keylogging, remote control, and master-slave synchronization for multiple cables. We have covered other USB penetration testing tools like the Diabolic Drive and Pendrive S3, but those were USB dongles while the HackCable looks like a standard USB Type-A to USB Type-C cable. There is very little information about the product, other than the microcontrollers that power it. It is likely running SuperWiFiDuck or some other USB rubber ducky program. It [...]

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BANDIT PC32 is a Raspberry Pi RP2350-powered keyboard computer that runs a graphically-oriented version of the ColorForth programming environment. The BANDIT PC32 is primarily aimed at on-the-go use for programming video games. The custom, 32-key split keyboard takes up most of the build, with a 3.2-inch 320 x 240 capacitive display in the center. It also features an HDMI port for connecting a larger external display. The 48-pin GPIO is divided into two female headers and can be used to interface with other devices directly. This is the second version of the Bandit standalone computer, building on an early prototype based on the RP2040 microcontroller. We have seen several interesting RP2350-based products like the Inky Frame 7.3”, 4D Systems display modules, and Jumperless V5 programmable breadboard. However, this is the first RP2350 standalone computer we have come across. It shares some similarities with the ESP32 Rainbow. BANDIT PC32 ColorForth specifications: [...]

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Elecrow’s CrowPanel Advance is a family of 2.8-inch to 7-inch ESP32-S3 WiFi and BLE displays that supports replaceable modules for Thread/Zigbee/Matter, WiFi 6, 2.4GHz, and LoRa (Meshtastic) connectivity. Those are updates of the CrowPanel (Basic) displays introduced last year. They feature an ESP32-S3-WROOM-1-N16R8 module soldered on the back plus headers taking ESP32-H2, ESP32-C6, SX1262 LoRa transceiver, or nRF2401 2.4GHz wireless MCU. CrowPanel Advance 7-inch specifications: Wireless Module – ESP32-S3-WROOM-1-N16R8 SoC – ESP32-S3 CPU – Dual-core LX7 processor with up to 240MHz Memory – 512KB SRAM, 8MP PSRAM Storage – 384KH ROM Wireless – WiFi 4 and Bluetooth 5.0 with BLE Storage – 16MB flash PCB antenna Storage – MicroSD card slot Display 7.0-inch IPS capacitive touchscreen display with 800×480 resolution (SC7277 driver) Viewing Angle: 178° Brightness: 400 cd/m²(Typ.) Color Depth – 16-bit Active Area – 156 x 87mm Audio Built-in microphone Speaker connector Wireless Expansion ESP32-H2 module with 802.15.4 radio [...]

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Sacred Labs’ FlipMods Combo is a 3-in-1 expansion module for the Flipper Zero that combines an ESP32 WiFi and Bluetooth SoC, Texas Instruments CC1101 Sub-GHz wireless microcontroller, and an unnamed GPS module. The expansion module is housed in a neat 3D-printed case and features a built-in GPS antenna, external WiFI/Bluetooth & Sub-Ghz antennas, as well as a switch to send the GPS data to the ESP32 chip or the Flipper Zero. The ESP32 module is preloaded with the Marauder firmware also used in the ESP32 Marauder Pocket Unit and Mayhem v2 for Flipper Zero for penetration testing with Wi-Fi scanning, de-authentication attacks, packet sniffing, and more. FlipMods Combo specifications: Wireless modules ESP32-WROOM-32UE for WiFi and Bluetooth; external SMA antenna (long) Texas Instruments CC1011 for 315, 433, 868, and 915MHz ISM bands; external SMA antenna (short) GPS module with internal antenna Storage – MicroSD card slot up to 32GB USB – [...]

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SONOFF sent us a sample of the MINI-D Wi-Fi smart switch with a dry contact design for review. If you’re familiar with the larger SONOFF 4CH Pro model, which features four channels, the MINI-D operates similarly but is smaller in size and comes with the latest software features. The principle of a dry contact is that the relay contacts are not directly connected to the device’s power supply circuit. Instead, the contacts are isolated and require an external power source to supply power to the load. Make it flexible to use the SONOFF Mini-D in various scenarios such as controlling garage doors, thermostats, or high-current electrical devices through a contactor, like water pumps. It can also manage low-power DC devices such as solenoid valves or small electric motors (<8W). Because the power supplied to the MINI-D and the power passed through its relay can come from different sources, it offers [...]

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Waveshare ESP32-S3-Touch-AMOLED-1.8 is an ESP32-S3 development board with an AMOLED display and AI audio support fully housed in a plastic enclosure. The most interesting feature of this devkit is its 1.8-inch AMOLED display with a 100000:1 contrast ratio and a wide 178° viewing angle, plus support for AI speech using its built-in microphone and speaker, and a built-in battery for IoT and AI applications. Other features include a QMI8658 6-axis IMU for motion detection, a PCF85063 RTC for time, and an ES8311 audio codec for high-quality audio. The ESP32-S3 provides Bluetooth and Wi-Fi connectivity and the board also features a USB-C port for power and programming. The AXP2101 power management IC enables battery charging and optimization, while GPIO, I2C, and UART pads allow expansion. Waveshare ESP32-S3-Touch-AMOLED-1.8 specifications Wireless MCU – Espressif Systems ESP32-S3R8 CPU – Dual-core Tensilica LX7 @ up to 240 MHz with vector instructions for AI acceleration. Memory – [...]

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SMARTHON Smart City IoT Starter Kit for micro:bit is an educational kit for 10+ years old teaching basic projects from turning an LED to more complex projects with multiple sensors, IFTTT integration, and mobile app development. The company sent us a sample of the Start Kit along with a BBC Micro:bit board for review, and we’ll report our experience with the kit in this review. Unboxing of SMARTHON Smart City IoT Starter Kit for micro:bit The package I received includes the SMARTHON Smart City IoT Starter Kit for Micro:bit and a BBC Micro:bit V2 board since it’s not included in the starter kit. The bottom side of the package lists the main components and features a QR code pointing to the product page. The package includes cardboard and wooden models, various cables, a 180° servo, a screw set, a city map, the Smarthon IoT:bit carrier board for the BBC Micro:bit, [...]

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Tactility is an operating system that runs on the ESP32 microcontroller series. Created by Dutch software developer, Ken Van Hoeylandt (also known as ByteWelder), Tactility is a project one year in the making inspired by the Flipper Zero and its application platform. The ESP32 operating system can run built-in apps and helper services from flash storage as well as external applications from an SD card. It leverages the Espressif ELF(Executable and Linkable Format) loader to load ELF files from external storage to the executable memory area. Tactility is built to run on any ESP32-based device with a touchscreen since drivers (display, touch, and SD card) can be implemented for any hardware. ESP32-S3 devices are “the best option” due to their performance and larger memory. The LILYGO T-Deck series is highly recommended for its onboard keyboard and sizable display. Preset configurations are available for the LILYGO T-Deck Plus, LILYGO T-Deck, M5Stack [...]

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SONOFF MINI-D, also called SONOFF Mini Dry WiFi Smart Switch, is a Matter-compatible smart switch with dry contact output suitable for controlling devices like garage doors, boilers, air conditioners, and other dry contact input equipment, as well as small DC motors (8W max) such as pumps and solenoid valves. It’s designed to support 12-48V AC or DC inputs, handle low-power DC motors up to 8W, and can be wired as Normally Open (NO) and Normally Closed (NC). Like other SONOFF devices, it’s controlled with the eWelink app, but Matter support means it can integrate with other apps such as Amazon Alexa, Google Home, Apple Home, etc… SONOFF MINI-D specifications: Wireless SoC – Espressif ESP32-D0WDR2 (so ESPHome firmware support is likely… eventually) Connectivity – 2.4GHz WiFi Misc LED for network status, pairing mode, and switch type selection Button for ON/OFF, pairing mode, and external switch type selection. Max load 24V DC/2A [...]

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The Plant Bot is an open-source, Internet-enabled plant monitor powered by the ESP32-C3 microcontroller and integrating a corrosion-resistant capacitive moisture soil sensor and a pump driver on a single printed circuit board, eliminating the need for additional cabling. The Plant Bot is designed to automate indoor plant care by combining moisture sensing, light sensing, and pump activation. It can be powered via USB or a single coin cell battery which lasts up to a week with daily updates. An onboard multi-color LED visually represents the current soil condition, ranging from red (dry) to blue (moist). The “Soil Level” line on the board indicates the maximum depth to which the sensor or device should be inserted into the soil. According to the maker, the Plant Bot will remain unaffected by corrosion if the soil level does not exceed this line. Other solutions we’ve covered with a soil sensor usually separate the [...]

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That’s it! 2024 is almost over, and it’s time to reflect on what happened during the year. So I’ll look at the highlights of 2024, share some CNX Software website traffic statistics, and speculate on what may be ahead of us in 2025. Looking back at 2024 Raspberry Pi was super active this year with 22 product launches that included boards and modules like the Raspberry Pi 5 with 2GB RAM,  Raspberry Pi Pico 2 and Pico 2 W, Raspberry Pi CM5, expansion modules like the Raspberry Pi AI camera, AI HAT+, and M.2 HAT+, new accessories such as the Raspberry Pi Touch Display 2 and the Raspberry Pi Monitor, and the new Raspberry Pi 500 keyboard PC among others. As usual, there was also plenty of announcement of accessories from third parties, and some boards with the new Raspberry Pi RP2350 Arm/RISC-V microcontroller. There weren’t any ground-breaking Arm processors [...]

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The vPlayer is an ESP32-S3 touchscreen video display that can be used for continuous MJPEG video playback from a microSD card. It features a 280 x 240 1.69-inch smartwatch-sized touchscreen display with backlight control and also offers expansion options via JST SH/SR connectors (UART, I2C, and I2S audio), and additional I/O pads on the PCB. All these features also make it suitable for applications such as weather displays, live traffic cameras, computer stats monitors, wildlife cameras, and fetching data from the Internet. vPlayer specifications: SoC – Espressif ESP32-S3 CPU – Dual-core 32-bit microcontroller @ 240MHz Memory and Storage – 4MB Flash and 2MB PSRAM Wireless – WiFi 4, Bluetooth 5.0 Storage – MicroSD card slot via MMC 4-bit interface Display – 1.69-inch touchscreen (280×240) P169H002-CTP TFT LCD ST7789V2 single-chip controller/driver CST816 touch controller Backlight control USB – 1x USB-C for power and data transfer Expansion JST SH/SR 1mm connectors for [...]

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The ESP32-AIVoice-Z01 is an affordable ESP32-S3-powered AI voice kit designed for creating voice-controlled AI applications. It features Wi-Fi and Bluetooth connectivity through the ESP32-S3 SoC, a dual digital microphone array for accurate voice recognition, and an onboard amplifier. The system also implements audio algorithms for noise reduction and echo cancellation. The ESP32-AIVoice-Z01 board supports Espressif’s WakeNet voice wake-up framework and integrates with the AiLinker open-source backend service framework to enable the connection to various large AI model services like OpenAI, ZhiPu QingYan, TongYi QianWen, and DouBao. These features make this device suitable for developing AI-powered toys, IoT devices, mobile devices, and smart home applications. ESP32-AIVoice-Z01 ESP32 AI voice kit specifications Wireless module – ESP32-S3-WROOM-1U SoC – Espressif Systems ESP32-S3 dual-core Xtensa LX7 processor Memory – 8MB PSRAM Storage – 16MB flash Wireless – WiFi 4 and Bluetooth 5.0 connectivity with external antenna Storage – MicroSD card slot Audio Dual digital microphone array [...]

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The Sensy32 Board is a compact sensor platform powered by Espressif’s flagship ESP32-S3 WiFi and Bluetooth microcontroller. The development board brings different monitoring devices together on the same PCB for easier integration into IoT ecosystems. It is a multipurpose device with several sensors bundled to measure and monitor ultraviolet light intensity, altitude, pressure, orientation, humidity, temperature, motion, and human presence. It includes a 9-degree-of-freedom inertial measurement unit (IMU) for 3D space orientation, while the built-in MEMS microphone can be used for audio input in voice detection and noise measurement applications. The onboard ESP32-S3 microcontroller powers the array of features and also offers Wi-Fi and Bluetooth Low Energy connectivity. The Sensy32 ESP32-S3 sensor platform also integrates an LCD screen for immediate feedback and real-time monitoring. We have covered other ESP32-based environment sensors such as the Qsen-07 multi-sensor board, AirGradient ONE, MoreSense MS-06, and Studio LUFF’s Air Quality Sensor. Sensy32 specifications: MCU [...]

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Last year, we featured the T-Keyboard-S3, a USB mechanical keyboard with ESP32-S3, and four mechanical keys each fitted with a 0.85-inch color display. The upgraded T-Keyboard-S3-Pro adds a rotary encoder and four magnetic interfaces on each side controlked by an STM32G030 MCU to daisy-chain the host keyboard with up to 5 slave keyboards in a 3×2 grid. Previously, we featured the ANAVI Macro Pad 12, Macro Pad 10, and Macro Pad 2 programmable keyboards. Feel free to explore those as well. LILYGO T-Keyboard-S3 Pro specifications: Wireless module – ESP32-S3-WROOM-1 used in the host model only MCU –  ESP32-S3R8 dual-core LX7 microprocessor @ up to 240 MHz with Vector extension for machine learning Memory – 8MB PSRAM Storage – 16MB SPI flash Connectivity – WiFi 4 and Bluetooth 5 with LE/Mesh PCB antenna Secondary MCU – STMicro STM32G030F6P6 for I2C magnetic connectors CPU – Arm 32-bit Cortex-M0+ CPU, frequency up to [...]

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The Hornet Nest Alarm Panel is a customizable, ESP32-based alarm control system designed and produced by US-based Technology Automation Consulting for home security automation. The device is powered by the wESP32 Ethernet board with PoE support and is compatible with Home Assistant through the ESPHome firmware. It features up to forty-two optoisolated zones, six MOSFET-controlled outputs, and six additional trigger outputs for 3.3V devices. It integrates a piezo buzzer and supports add-ons like a Wiegand keypad and water leak sensors. The Hornet Nest Alarm ESP32-based home security platform “aims to bridge the gap between traditional wired security systems and the flexibility of modern smart home automation.” Christopher Greenless of Technology Automation Consulting says the project was born from his need for a robust and smart security system to integrate with his Home Assistant setup. Proprietary solutions were inadequate and limited while DIY options were inefficient and often unreliable. He created [...]

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